BGP Routing: 2011-03-27

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, April 2, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 03 Apr, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 355898
Prefixes after maximum aggregation: 161019
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173951
Total ASes present in the Internet Routing Table: 37156
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 31317
Origin ASes announcing only one prefix: 14969
Transit ASes present in the Internet Routing Table: 4888
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 22
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2675
Unregistered ASNs in the Routing Table: 245
Number of 32-bit ASNs allocated by the RIRs: 1250
Number of 32-bit ASNs visible in the Routing Table: 951
Prefixes from 32-bit ASNs in the Routing Table: 2101
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 199
Number of addresses announced to Internet: 2393626168
Equivalent to 142 /8s, 171 /16s and 214 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.1
Total number of prefixes smaller than registry allocations: 147316

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 85293
Total APNIC prefixes after maximum aggregation: 28829
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82321
Unique aggregates announced from the APNIC address blocks: 36680
APNIC Region origin ASes present in the Internet Routing Table: 4369
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 601812673
Equivalent to 35 /8s, 222 /16s and 238 /24s
Percentage of available APNIC address space announced: 76.3

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 141676
Total ARIN prefixes after maximum aggregation: 72784
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 113821
Unique aggregates announced from the ARIN address blocks: 44964
ARIN Region origin ASes present in the Internet Routing Table: 14293
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5435
ARIN Region transit ASes present in the Internet Routing Table: 1440
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 10
Number of ARIN addresses announced to Internet: 797479704
Equivalent to 47 /8s, 136 /16s and 147 /24s
Percentage of available ARIN address space announced: 63.4

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 86448
Total RIPE prefixes after maximum aggregation: 47805
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78892
Unique aggregates announced from the RIPE address blocks: 50158
RIPE Region origin ASes present in the Internet Routing Table: 15487
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7733
RIPE Region transit ASes present in the Internet Routing Table: 2355
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 703
Number of RIPE addresses announced to Internet: 465919036
Equivalent to 27 /8s, 197 /16s and 92 /24s
Percentage of available RIPE address space announced: 75.1

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 32475
Total LACNIC prefixes after maximum aggregation: 7426
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31392
Unique aggregates announced from the LACNIC address blocks: 16260
LACNIC Region origin ASes present in the Internet Routing Table: 1441
LACNIC Prefixes per ASN: 21.78
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 187
Number of LACNIC addresses announced to Internet: 81611660
Equivalent to 4 /8s, 221 /16s and 75 /24s
Percentage of available LACNIC address space announced: 54.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7624
Total AfriNIC prefixes after maximum aggregation: 1828
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 5995
Unique aggregates announced from the AfriNIC address blocks: 1871
AfriNIC Region origin ASes present in the Internet Routing Table: 441
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22715136
Equivalent to 1 /8s, 90 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 33.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1871 9506 601 Korea Telecom (KIX)
7545 1543 301 83 TPG Internet Pty Ltd
17974 1442 472 34 PT TELEKOMUNIKASI INDONESIA
4755 1437 638 168 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 204 Bharti Airtel Ltd.
9583 1055 77 494 Sify Limited
9829 1006 869 51 BSNL National Internet Backbo
17488 956 162 97 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet
4808 920 1973 265 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3669 3838 258 bellsouth.net, inc.
4323 2550 1102 397 Time Warner Telecom
1785 1787 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1596 304 47 AT&T Worldnet Services
20115 1583 1545 641 Charter Communications
19262 1489 4919 303 Verizon Global Networks
7018 1360 6802 886 AT&T WorldNet Services
11492 1327 240 15 Cable One
22773 1292 2865 84 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 1006 796 164 KPNQwest Backbone AS
9116 544 326 31 Goldenlines main autonomous s
6830 515 1780 318 UPC Distribution Services
3292 509 2013 392 TDC Tele Danmark
34984 484 97 186 Tellcom Iletisim Hizmetleri
20940 452 128 341 Akamai Technologies European
8866 447 134 26 Bulgarian Telecommunication C
9198 415 267 15 Kazakhtelecom Corporate Sales
3320 412 7604 358 Deutsche Telekom AG
8402 407 320 32 Corbina telecom

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1405 262 152 TVCABLE BOGOTA
28573 1264 971 84 Types of queries are: POCs, o
8151 1251 2661 371 Uninet S.A. de C.V.
6503 1117 354 73 AVANTEL, S.A.
7303 925 465 149 Telecom Argentina Stet-France
14420 642 52 91 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 517 225 97 COLOMBIA TELECOMUNICACIONES S
27947 489 54 49 Telconet S.A
11172 486 83 79 Alestra

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 842 445 11 TEDATA
24863 774 147 39 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 151 441 87 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3669 3838 258 bellsouth.net, inc.
4323 2550 1102 397 Time Warner Telecom
23456 2101 504 1124 >>UNKNOWN<<
4766 1871 9506 601 Korea Telecom (KIX)
1785 1787 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1596 304 47 AT&T Worldnet Services
20115 1583 1545 641 Charter Communications
7545 1543 301 83 TPG Internet Pty Ltd
19262 1489 4919 303 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2550 2153 Time Warner Telecom
1785 1787 1656 AppliedTheory Corporation
6478 1596 1549 AT&T Worldnet Services
7545 1543 1460 TPG Internet Pty Ltd
18566 1606 1411 Covad Communications
17974 1442 1408 PT TELEKOMUNIKASI INDONESIA
11492 1327 1312 Cable One
4766 1871 1270 Korea Telecom (KIX)
4755 1437 1269 Videsh Sanchar Nigam Ltd. Aut
10620 1405 1253 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
44559 UNALLOCATED 2.56.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.58.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 >>UNKNOWN<<
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.172.0.0/17 39138 OpenAP Wireless Networks
41.57.192.0/18 22750 BCSNET

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:11 /10:26 /11:75 /12:219
/13:448 /14:774 /15:1404 /16:11683 /17:5949 /18:9734
/19:19578 /20:25542 /21:25669 /22:34045 /23:32688 /24:185395
/25:373 /26:350 /27:174 /28:207 /29:200 /30:656
/31:57 /32:621

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2262 3669 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1550 1596 AT&T Worldnet Services
4323 1372 2550 Time Warner Telecom
10620 1295 1405 TVCABLE BOGOTA
11492 1276 1327 Cable One
23456 1121 2101 >>UNKNOWN<<
7011 1064 1164 Citizens Utilities
1785 1055 1787 AppliedTheory Corporation
6503 900 1117 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:297 2:73 4:18 5:1 8:348 12:2019
13:1 14:429 15:15 16:3 17:8 20:9
23:5 24:1612 27:705 31:53 32:126 33:2
34:2 37:1 38:752 39:1 40:101 41:2376
42:1 44:3 46:794 47:4 49:143 50:141
52:13 55:5 56:2 57:40 58:825 59:489
60:387 61:1144 62:1024 63:1923 64:3902 65:2335
66:4340 67:1835 68:1255 69:3010 70:742 71:349
72:1933 73:3 74:2389 75:299 76:344 77:891
78:701 79:463 80:1086 81:829 82:522 83:476
84:665 85:1052 86:605 87:795 88:346 89:1594
90:175 91:3667 92:510 93:1055 94:1262 95:796
96:459 97:253 98:822 99:35 101:49 106:1
107:4 108:80 109:933 110:518 111:681 112:325
113:388 114:511 115:667 116:947 117:675 118:770
119:1120 120:288 121:712 122:1614 123:1046 124:1283
125:1249 128:266 129:177 130:172 131:563 132:109
133:20 134:218 135:49 136:213 137:142 138:301
139:117 140:487 141:173 142:381 143:395 144:480
145:52 146:443 147:213 148:637 149:261 150:167
151:187 152:298 153:180 154:3 155:389 156:187
157:349 158:131 159:381 160:317 161:241 162:277
163:166 164:490 165:367 166:503 167:414 168:722
169:155 170:780 171:74 172:2 173:1279 174:533
175:352 177:70 178:778 180:799 181:4 182:409
183:202 184:318 185:1 186:1126 187:892 188:929
189:1032 190:4814 192:5795 193:4827 194:3531 195:3084
196:1212 197:15 198:3604 199:3880 200:5571 201:1498
202:8372 203:8451 204:4129 205:2323 206:2666 207:3029
208:3931 209:3510 210:2727 211:1367 212:2027 213:1759
214:730 215:66 216:4876 217:1638 218:563 219:375
220:1198 221:481 222:318 223:104

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 03 Apr, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 346563
Prefixes after maximum aggregation: 157749
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173896
Total ASes present in the Internet Routing Table: 36033
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31154
Origin ASes announcing only one prefix: 15008
Transit ASes present in the Internet Routing Table: 4879
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1928
Unregistered ASNs in the Routing Table: 335
Number of 32-bit ASNs allocated by the RIRs: 1250
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2083
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2409438464
Equivalent to 143 /8s, 157 /16s and 29 /24s
Percentage of available address space announced: 65.0
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.1
Total number of prefixes smaller than registry allocations: 142000

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 83459
Total APNIC prefixes after maximum aggregation: 28531
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 81220
Unique aggregates announced from the APNIC address blocks: 36594
APNIC Region origin ASes present in the Internet Routing Table: 4328
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 663
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 600436992
Equivalent to 35 /8s, 201 /16s and 241 /24s
Percentage of available APNIC address space announced: 76.1

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 137332
Total ARIN prefixes after maximum aggregation: 70327
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110174
Unique aggregates announced from the ARIN address blocks: 45016
ARIN Region origin ASes present in the Internet Routing Table: 14213
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5442
ARIN Region transit ASes present in the Internet Routing Table: 1419
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 797408512
Equivalent to 47 /8s, 135 /16s and 125 /24s
Percentage of available ARIN address space announced: 63.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83369
Total RIPE prefixes after maximum aggregation: 47440
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76603
Unique aggregates announced from the RIPE address blocks: 50323
RIPE Region origin ASes present in the Internet Routing Table: 15452
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7770
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 465664768
Equivalent to 27 /8s, 193 /16s and 123 /24s
Percentage of available RIPE address space announced: 75.0

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31988
Total LACNIC prefixes after maximum aggregation: 7290
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 31053
Unique aggregates announced from the LACNIC address blocks: 16251
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.79
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81541376
Equivalent to 4 /8s, 220 /16s and 57 /24s
Percentage of available LACNIC address space announced: 54.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7598
Total AfriNIC prefixes after maximum aggregation: 1824
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 5979
Unique aggregates announced from the AfriNIC address blocks: 1866
AfriNIC Region origin ASes present in the Internet Routing Table: 440
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22648576
Equivalent to 1 /8s, 89 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 33.7

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1871 9506 601 Korea Telecom (KIX)
7545 1542 301 82 TPG Internet Pty Ltd
17974 1441 472 34 PT Telekomunikasi Indonesia
4755 1436 638 168 TATA Communications formerly
24560 1137 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 947 2028 276 CNCGROUP IP network China169
17488 939 162 97 Hathway IP Over Cable Interne
18101 936 116 139 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3670 3838 258 BellSouth.net Inc.
4323 2553 1106 397 tw telecom holdings, inc.
1785 1790 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1596 304 47 AT&T Services, Inc.
20115 1532 1541 641 Charter Communications
19262 1489 4935 303 Verizon Online LLC
7018 1370 6946 896 AT&T Services, Inc.
11492 1321 240 15 CABLE ONE, INC.
22773 1291 2865 84 Cox Communications Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
9116 541 326 30 Goldenlines main autonomous s
6830 512 1780 317 UPC Broadband
34984 484 97 186 BILISIM TELEKOM
3292 454 2013 391 TDC Data Networks
20940 451 128 341 Akamai Technologies European
8866 446 134 26 Bulgarian Telecommunication C
9198 415 267 15 Kazakhtelecom Data Network Ad
3320 412 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 400 1803 313 >>UNKNOWN<<

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1405 262 152 Types of queries are: POCs, o
28573 1246 971 84 Types of queries are: POCs, o
8151 1229 2661 365 Uninet S.A. de C.V.
6503 1109 354 73 Axtel, S.A.B. de C.V.
7303 901 464 136 Telecom Argentina S.A.
14420 642 52 91 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 Types of queries are: POCs, o
11172 485 99 80 Alestra, S. de R.L. de C.V.
14117 480 38 44 Telefonica del Sur S.A.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 840 445 11 TEDATA
24863 770 147 36 LINKdotNET AS number
15475 426 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 147 441 86 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3670 3838 258 BellSouth.net Inc.
4323 2553 1106 397 tw telecom holdings, inc.
23456 2083 501 1119 32-bit ASN transition
4766 1871 9506 601 Korea Telecom (KIX)
1785 1790 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1596 304 47 AT&T Services, Inc.
7545 1542 301 82 TPG Internet Pty Ltd
20115 1532 1541 641 Charter Communications
19262 1489 4935 303 Verizon Online LLC

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2553 2156 tw telecom holdings, inc.
1785 1790 1659 PaeTec Communications, Inc.
6478 1596 1549 AT&T Services, Inc.
7545 1542 1460 TPG Internet Pty Ltd
17974 1441 1407 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
11492 1321 1306 CABLE ONE, INC.
4766 1871 1270 Korea Telecom (KIX)
4755 1436 1268 TATA Communications formerly
10620 1405 1253 Types of queries are: POCs, o

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.172.0.0/17 39138 OpenAP Wireless Networks
41.57.192.0/18 22750 BCSNET

Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:11 /10:26 /11:74 /12:218
/13:447 /14:766 /15:1373 /16:11536 /17:5685 /18:9365
/19:19155 /20:24906 /21:25221 /22:33494 /23:31910 /24:181881
/25:11 /26:17 /27:24 /28:158 /29:99 /30:52
/31:0 /32:114

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2263 3670 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1550 1596 AT&T Services, Inc.
4323 1370 2553 tw telecom holdings, inc.
10620 1295 1405 Types of queries are: POCs, o
11492 1270 1321 CABLE ONE, INC.
23456 1105 2083 32-bit ASN transition
7011 1064 1164 Frontier Communications of Am
1785 1056 1790 PaeTec Communications, Inc.
6503 893 1109 Axtel, S.A.B. de C.V.

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:296 2:52 4:14 5:1 8:347 12:2015
13:1 14:412 15:15 16:3 17:8 20:9
23:5 24:1592 27:703 31:53 32:56 33:2
34:2 37:1 38:748 39:1 40:101 41:2373
42:1 44:3 46:793 47:4 49:143 50:139
52:13 55:5 56:2 57:27 58:776 59:478
60:385 61:1039 62:1010 63:1901 64:3849 65:2329
66:4306 67:1810 68:1079 69:2906 70:696 71:343
72:1898 73:1 74:2327 75:285 76:336 77:850
78:694 79:452 80:1073 81:822 82:513 83:467
84:646 85:1033 86:555 87:756 88:339 89:1556
90:175 91:3625 92:509 93:1040 94:1235 95:779
96:454 97:253 98:814 99:35 101:41 106:1
107:4 108:80 109:887 110:518 111:673 112:314
113:386 114:487 115:670 116:916 117:670 118:759
119:1118 120:285 121:686 122:1609 123:1028 124:1257
125:1247 128:213 129:168 130:166 131:562 132:101
133:20 134:208 135:49 136:210 137:139 138:300
139:103 140:464 141:173 142:362 143:392 144:478
145:52 146:439 147:202 148:619 149:260 150:159
151:187 152:296 153:180 154:2 155:390 156:184
157:319 158:131 159:374 160:316 161:220 162:276
163:156 164:491 165:347 166:502 167:414 168:717
169:153 170:775 171:74 172:2 173:1259 174:529
175:339 177:70 178:764 180:790 181:4 182:396
183:202 184:237 185:1 186:1118 187:893 188:925
189:1034 190:4790 192:5712 193:4801 194:3474 195:2941
196:1203 197:15 198:3531 199:3840 200:5541 201:1482
202:8140 203:8338 204:4053 205:2294 206:2546 207:2950
208:3910 209:3474 210:2647 211:1355 212:1988 213:1706
214:731 215:66 216:4830 217:1631 218:548 219:372
220:1187 221:462 222:311 223:101

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 03 Apr, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 351600
Prefixes after maximum aggregation: 159798
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174071
Total ASes present in the Internet Routing Table: 37152
Prefixes per ASN: 9.46
Origin-only ASes present in the Internet Routing Table: 31195
Origin ASes announcing only one prefix: 15019
Transit ASes present in the Internet Routing Table: 5009
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 515
Unregistered ASNs in the Routing Table: 225
Number of 32-bit ASNs allocated by the RIRs: 1250
Number of 32-bit ASNs visible in the Routing Table: 948
Prefixes from 32-bit ASNs in the Routing Table: 2088
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 190
Number of addresses announced to Internet: 2393053216
Equivalent to 142 /8s, 163 /16s and 24 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.1
Total number of prefixes smaller than registry allocations: 145663

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 87494
Total APNIC prefixes after maximum aggregation: 29908
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 84408
Unique aggregates announced from the APNIC address blocks: 36688
APNIC Region origin ASes present in the Internet Routing Table: 4385
APNIC Prefixes per ASN: 19.25
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 695
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 601806368
Equivalent to 35 /8s, 222 /16s and 214 /24s
Percentage of available APNIC address space announced: 76.3

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 138589
Total ARIN prefixes after maximum aggregation: 70819
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111111
Unique aggregates announced from the ARIN address blocks: 45029
ARIN Region origin ASes present in the Internet Routing Table: 14291
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5453
ARIN Region transit ASes present in the Internet Routing Table: 1486
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 10
Number of ARIN addresses announced to Internet: 797426176
Equivalent to 47 /8s, 135 /16s and 194 /24s
Percentage of available ARIN address space announced: 63.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83155
Total RIPE prefixes after maximum aggregation: 47507
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 76407
Unique aggregates announced from the RIPE address blocks: 50316
RIPE Region origin ASes present in the Internet Routing Table: 15458
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7778
RIPE Region transit ASes present in the Internet Routing Table: 2413
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 699
Number of RIPE addresses announced to Internet: 465538048
Equivalent to 27 /8s, 191 /16s and 140 /24s
Percentage of available RIPE address space announced: 75.0

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 32393
Total LACNIC prefixes after maximum aggregation: 7395
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31299
Unique aggregates announced from the LACNIC address blocks: 16266
LACNIC Region origin ASes present in the Internet Routing Table: 1440
LACNIC Prefixes per ASN: 21.74
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 188
Number of LACNIC addresses announced to Internet: 81588864
Equivalent to 4 /8s, 220 /16s and 242 /24s
Percentage of available LACNIC address space announced: 54.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7619
Total AfriNIC prefixes after maximum aggregation: 1824
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6001
Unique aggregates announced from the AfriNIC address blocks: 1871
AfriNIC Region origin ASes present in the Internet Routing Table: 441
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22715136
Equivalent to 1 /8s, 90 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 33.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2435 9514 905 Korea Telecom (KIX)
7545 1542 301 82 TPG Internet Pty Ltd
17974 1443 480 33 PT TELEKOMUNIKASI INDONESIA
4755 1436 634 167 TATA Communications formerly
24560 1137 322 204 Bharti Airtel Ltd., Telemedia
4808 1061 2140 294 CNCGROUP IP network: China169
9583 1055 77 494 Sify Limited
9829 1006 869 51 BSNL National Internet Backbo
17488 941 162 97 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3670 3838 257 bellsouth.net, inc.
4323 2554 1090 396 Time Warner Telecom
1785 1787 681 131 PaeTec Communications, Inc.
18566 1606 331 195 Covad Communications
6478 1596 304 47 AT&T Worldnet Services
20115 1532 1541 641 Charter Communications
19262 1489 4935 303 Verizon Global Networks
7018 1356 6785 882 AT&T WorldNet Services
11492 1325 240 15 Cable One
22773 1292 2865 84 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6830 514 1780 318 UPC Distribution Services
34984 484 97 186 BILISIM TELEKOM
3292 454 2013 391 TDC Tele Danmark
8866 446 134 26 Bulgarian Telecommunication C
20940 446 127 337 Akamai Technologies European
9198 415 267 15 Kazakhtelecom Data Network Ad
3320 413 7604 359 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 400 577 6 Uni2 Autonomous System
702 395 1800 308 UUNET - Commercial IP service

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1405 262 152 TVCABLE BOGOTA
28573 1264 971 84 NET Servicos de Comunicao S.A
8151 1247 2680 371 UniNet S.A. de C.V.
6503 1117 354 72 AVANTEL, S.A.
7303 925 465 149 Telecom Argentina Stet-France
14420 642 52 91 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 515 225 98 Empresa Nacional de Telecomun
11172 486 83 79 Servicios Alestra S.A de C.V
27947 480 53 53 Telconet S.A

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 843 445 11 TEDATA
24863 774 147 39 LINKdotNET AS number
15475 421 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 146 441 85 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3670 3838 257 bellsouth.net, inc.
4323 2554 1090 396 Time Warner Telecom
4766 2435 9514 905 Korea Telecom (KIX)
23456 2088 501 1123 32-bit ASN transition
1785 1787 681 131 PaeTec Communications, Inc.
18566 1606 331 195 Covad Communications
6478 1596 304 47 AT&T Worldnet Services
7545 1542 301 82 TPG Internet Pty Ltd
20115 1532 1541 641 Charter Communications
19262 1489 4935 303 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2554 2158 Time Warner Telecom
1785 1787 1656 PaeTec Communications, Inc.
6478 1596 1549 AT&T Worldnet Services
4766 2435 1530 Korea Telecom (KIX)
7545 1542 1460 TPG Internet Pty Ltd
18566 1606 1411 Covad Communications
17974 1443 1410 PT TELEKOMUNIKASI INDONESIA
11492 1325 1310 Cable One
4755 1436 1269 TATA Communications formerly
10620 1405 1253 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 E-Rent LLC
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.172.0.0/17 39138 OpenAP Wireless Networks
41.57.192.0/18 22750 BCSNET

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:11 /10:26 /11:74 /12:218
/13:448 /14:769 /15:1376 /16:11571 /17:5720 /18:9418
/19:19077 /20:24900 /21:25321 /22:33642 /23:32149 /24:183674
/25:1140 /26:1281 /27:709 /28:40 /29:9 /30:2
/31:0 /32:6

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2264 3670 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1550 1596 AT&T Worldnet Services
4323 1372 2554 Time Warner Telecom
10620 1295 1405 TVCABLE BOGOTA
11492 1274 1325 Cable One
23456 1110 2088 32-bit ASN transition
7011 1064 1164 Citizens Utilities
1785 1056 1787 PaeTec Communications, Inc.
6503 901 1117 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:297 2:53 4:14 5:1 8:347 12:2016
13:1 14:429 15:15 16:3 17:8 20:9
23:5 24:1595 27:709 31:53 32:60 33:2
34:2 37:1 38:752 39:1 40:101 41:2375
42:1 44:3 46:791 47:4 49:143 50:141
52:13 55:6 56:2 57:30 58:825 59:487
60:387 61:1141 62:1009 63:1907 64:3878 65:2332
66:4316 67:1809 68:1077 69:2907 70:697 71:343
72:1899 73:1 74:2329 75:285 76:336 77:850
78:694 79:450 80:1074 81:820 82:509 83:464
84:646 85:1032 86:555 87:761 88:339 89:1562
90:175 91:3653 92:509 93:1039 94:1234 95:784
96:459 97:253 98:815 99:35 101:49 106:1
107:4 108:80 109:927 110:518 111:681 112:325
113:387 114:508 115:675 116:932 117:675 118:770
119:1125 120:286 121:710 122:1614 123:1047 124:1285
125:1249 128:265 129:174 130:172 131:565 132:109
133:20 134:216 135:49 136:213 137:142 138:300
139:105 140:486 141:173 142:378 143:393 144:480
145:52 146:443 147:202 148:637 149:261 150:166
151:187 152:298 153:180 154:3 155:390 156:187
157:348 158:131 159:381 160:317 161:229 162:277
163:166 164:493 165:349 166:502 167:414 168:722
169:154 170:780 171:74 172:2 173:1259 174:529
175:352 177:70 178:767 180:799 181:4 182:409
183:202 184:237 185:1 186:1120 187:909 188:924
189:1034 190:4808 192:5763 193:4803 194:3482 195:2944
196:1204 197:15 198:3588 199:3875 200:5568 201:1486
202:8368 203:8445 204:4127 205:2318 206:2647 207:3027
208:3914 209:3500 210:2720 211:1365 212:1974 213:1709
214:733 215:66 216:4854 217:1632 218:559 219:374
220:1195 221:480 222:318 223:104

End of report
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Friday, April 1, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 02 Apr, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 355660
Prefixes after maximum aggregation: 160967
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173905
Total ASes present in the Internet Routing Table: 37142
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 31307
Origin ASes announcing only one prefix: 14967
Transit ASes present in the Internet Routing Table: 4887
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 22
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2667
Unregistered ASNs in the Routing Table: 240
Number of 32-bit ASNs allocated by the RIRs: 1247
Number of 32-bit ASNs visible in the Routing Table: 948
Prefixes from 32-bit ASNs in the Routing Table: 2101
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 204
Number of addresses announced to Internet: 2392905272
Equivalent to 142 /8s, 160 /16s and 214 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.1
Total number of prefixes smaller than registry allocations: 147280

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 85128
Total APNIC prefixes after maximum aggregation: 28744
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82133
Unique aggregates announced from the APNIC address blocks: 36678
APNIC Region origin ASes present in the Internet Routing Table: 4365
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 669
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 45
Number of APNIC addresses announced to Internet: 601153985
Equivalent to 35 /8s, 212 /16s and 225 /24s
Percentage of available APNIC address space announced: 76.2

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 141665
Total ARIN prefixes after maximum aggregation: 72807
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 113850
Unique aggregates announced from the ARIN address blocks: 44952
ARIN Region origin ASes present in the Internet Routing Table: 14292
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5430
ARIN Region transit ASes present in the Internet Routing Table: 1444
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 10
Number of ARIN addresses announced to Internet: 797450008
Equivalent to 47 /8s, 136 /16s and 31 /24s
Percentage of available ARIN address space announced: 63.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 86410
Total RIPE prefixes after maximum aggregation: 47823
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78881
Unique aggregates announced from the RIPE address blocks: 50132
RIPE Region origin ASes present in the Internet Routing Table: 15488
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7743
RIPE Region transit ASes present in the Internet Routing Table: 2362
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 704
Number of RIPE addresses announced to Internet: 465859900
Equivalent to 27 /8s, 196 /16s and 117 /24s
Percentage of available RIPE address space announced: 75.0

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 32469
Total LACNIC prefixes after maximum aggregation: 7426
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31386
Unique aggregates announced from the LACNIC address blocks: 16265
LACNIC Region origin ASes present in the Internet Routing Table: 1440
LACNIC Prefixes per ASN: 21.80
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 184
Number of LACNIC addresses announced to Internet: 81608332
Equivalent to 4 /8s, 221 /16s and 62 /24s
Percentage of available LACNIC address space announced: 54.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7611
Total AfriNIC prefixes after maximum aggregation: 1824
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 5990
Unique aggregates announced from the AfriNIC address blocks: 1868
AfriNIC Region origin ASes present in the Internet Routing Table: 438
AfriNIC Prefixes per ASN: 13.68
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22720768
Equivalent to 1 /8s, 90 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 33.9

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1867 9506 601 Korea Telecom (KIX)
7545 1545 301 85 TPG Internet Pty Ltd
17974 1445 472 34 PT TELEKOMUNIKASI INDONESIA
4755 1436 638 168 Videsh Sanchar Nigam Ltd. Aut
24560 1135 322 204 Bharti Airtel Ltd.
9583 1055 77 494 Sify Limited
9829 1006 869 51 BSNL National Internet Backbo
17488 955 162 98 Hathway IP Over Cable Interne
18101 935 116 138 Reliance Infocom Ltd Internet
4808 919 1960 264 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3669 3838 258 bellsouth.net, inc.
4323 2555 1106 397 Time Warner Telecom
1785 1788 681 132 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1591 304 44 AT&T Worldnet Services
20115 1583 1545 641 Charter Communications
19262 1489 4919 303 Verizon Global Networks
7018 1361 6802 887 AT&T WorldNet Services
11492 1327 240 15 Cable One
22773 1292 2865 84 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 1008 796 166 KPNQwest Backbone AS
9116 544 326 31 Goldenlines main autonomous s
6830 515 1780 318 UPC Distribution Services
3292 509 2013 392 TDC Tele Danmark
34984 484 97 186 Tellcom Iletisim Hizmetleri
20940 453 128 342 Akamai Technologies European
8866 447 134 26 Bulgarian Telecommunication C
9198 424 267 15 Kazakhtelecom Corporate Sales
3320 412 7604 358 Deutsche Telekom AG
8402 410 320 32 Corbina telecom

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1405 262 152 TVCABLE BOGOTA
28573 1263 971 84 Types of queries are: POCs, o
8151 1252 2661 372 Uninet S.A. de C.V.
6503 1117 354 73 AVANTEL, S.A.
7303 925 465 149 Telecom Argentina Stet-France
14420 642 52 91 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 COLOMBIA TELECOMUNICACIONES S
27947 490 54 49 Telconet S.A
11172 485 83 79 Alestra

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 840 445 11 TEDATA
24863 774 147 39 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 291 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 151 441 87 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3669 3838 258 bellsouth.net, inc.
4323 2555 1106 397 Time Warner Telecom
23456 2101 502 1122 >>UNKNOWN<<
4766 1867 9506 601 Korea Telecom (KIX)
1785 1788 681 132 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1591 304 44 AT&T Worldnet Services
20115 1583 1545 641 Charter Communications
7545 1545 301 85 TPG Internet Pty Ltd
19262 1489 4919 303 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2555 2158 Time Warner Telecom
1785 1788 1656 AppliedTheory Corporation
6478 1591 1547 AT&T Worldnet Services
7545 1545 1460 TPG Internet Pty Ltd
18566 1606 1411 Covad Communications
17974 1445 1411 PT TELEKOMUNIKASI INDONESIA
11492 1327 1312 Cable One
4755 1436 1268 Videsh Sanchar Nigam Ltd. Aut
4766 1867 1266 Korea Telecom (KIX)
10620 1405 1253 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
44559 UNALLOCATED 2.56.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.58.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
15132 UNALLOCATED 12.9.150.0/24 1239 Sprint
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 >>UNKNOWN<<
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.129.192.0/19 47286 OTS Ltd.
31.170.224.0/19 29049 AzerSat LLC.

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:11 /10:26 /11:75 /12:219
/13:448 /14:773 /15:1397 /16:11684 /17:5948 /18:9723
/19:19579 /20:25517 /21:25653 /22:34002 /23:32632 /24:185322
/25:372 /26:348 /27:174 /28:205 /29:200 /30:654
/31:57 /32:622

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2262 3669 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1545 1591 AT&T Worldnet Services
4323 1372 2555 Time Warner Telecom
10620 1295 1405 TVCABLE BOGOTA
11492 1276 1327 Cable One
23456 1120 2101 >>UNKNOWN<<
7011 1064 1164 Citizens Utilities
1785 1056 1788 AppliedTheory Corporation
6503 900 1117 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:296 2:74 4:18 5:1 8:348 12:2019
13:1 14:429 15:15 16:3 17:8 20:9
23:5 24:1611 27:710 31:53 32:126 33:3
34:2 37:1 38:752 39:1 40:101 41:2369
42:1 44:3 46:777 47:4 49:141 50:139
52:13 55:6 56:2 57:40 58:829 59:489
60:387 61:1145 62:1023 63:1924 64:3902 65:2336
66:4341 67:1835 68:1253 69:3010 70:742 71:349
72:1934 73:3 74:2389 75:299 76:344 77:891
78:699 79:463 80:1094 81:828 82:518 83:476
84:665 85:1052 86:605 87:795 88:346 89:1586
90:175 91:3671 92:511 93:1048 94:1265 95:796
96:459 97:253 98:824 99:35 101:49 106:1
107:4 108:80 109:936 110:518 111:680 112:319
113:385 114:512 115:672 116:947 117:678 118:767
119:1126 120:288 121:712 122:1611 123:1057 124:1286
125:1249 128:266 129:177 130:172 131:561 132:109
133:20 134:218 135:49 136:213 137:142 138:302
139:117 140:487 141:173 142:381 143:391 144:482
145:52 146:443 147:213 148:637 149:261 150:166
151:187 152:298 153:180 154:3 155:390 156:187
157:349 158:131 159:380 160:317 161:211 162:277
163:166 164:494 165:367 166:503 167:414 168:722
169:155 170:783 171:74 172:2 173:1279 174:535
175:351 177:69 178:795 180:799 181:4 182:407
183:198 184:318 185:1 186:1123 187:906 188:930
189:1039 190:4807 192:5801 193:4822 194:3531 195:3085
196:1171 197:15 198:3604 199:3877 200:5567 201:1498
202:8371 203:8456 204:4133 205:2324 206:2666 207:3026
208:3930 209:3507 210:2727 211:1367 212:2026 213:1761
214:762 215:66 216:4875 217:1637 218:561 219:341
220:1198 221:481 222:302 223:104

End of report
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