BGP Routing: 2011-05-01

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, May 7, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 08 May, 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: 361072
Prefixes after maximum aggregation: 162492
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175856
Total ASes present in the Internet Routing Table: 37506
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31393
Origin ASes announcing only one prefix: 15055
Transit ASes present in the Internet Routing Table: 5057
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3130
Unregistered ASNs in the Routing Table: 328
Number of 32-bit ASNs allocated by the RIRs: 1335
Number of 32-bit ASNs visible in the Routing Table: 1056
Prefixes from 32-bit ASNs in the Routing Table: 2404
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 152
Number of addresses announced to Internet: 2423745515
Equivalent to 144 /8s, 119 /16s and 107 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 149648

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

Prefixes being announced by APNIC Region ASes: 87267
Total APNIC prefixes after maximum aggregation: 28811
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 83753
Unique aggregates announced from the APNIC address blocks: 36848
APNIC Region origin ASes present in the Internet Routing Table: 4416
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 696
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 612991937
Equivalent to 36 /8s, 137 /16s and 131 /24s
Percentage of available APNIC address space announced: 77.7

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: 143317
Total ARIN prefixes after maximum aggregation: 73287
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115360
Unique aggregates announced from the ARIN address blocks: 45270
ARIN Region origin ASes present in the Internet Routing Table: 14371
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5485
ARIN Region transit ASes present in the Internet Routing Table: 1463
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 800063512
Equivalent to 47 /8s, 176 /16s and 0 /24s
Percentage of available ARIN address space announced: 63.6

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: 87133
Total RIPE prefixes after maximum aggregation: 48329
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 79789
Unique aggregates announced from the RIPE address blocks: 50945
RIPE Region origin ASes present in the Internet Routing Table: 15595
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7762
RIPE Region transit ASes present in the Internet Routing Table: 2467
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 782
Number of RIPE addresses announced to Internet: 468517996
Equivalent to 27 /8s, 237 /16s and 4 /24s
Percentage of available RIPE address space announced: 75.5

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: 32842
Total LACNIC prefixes after maximum aggregation: 7512
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31893
Unique aggregates announced from the LACNIC address blocks: 16633
LACNIC Region origin ASes present in the Internet Routing Table: 1447
LACNIC Prefixes per ASN: 22.04
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 209
Number of LACNIC addresses announced to Internet: 83167756
Equivalent to 4 /8s, 245 /16s and 10 /24s
Percentage of available LACNIC address space announced: 55.1

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: 7801
Total AfriNIC prefixes after maximum aggregation: 1867
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6155
Unique aggregates announced from the AfriNIC address blocks: 1916
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23046912
Equivalent to 1 /8s, 95 /16s and 171 /24s
Percentage of available AfriNIC address space announced: 34.3

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 1891 9501 613 Korea Telecom (KIX)
17974 1804 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1565 301 86 TPG Internet Pty Ltd
4755 1458 374 164 Videsh Sanchar Nigam Ltd. Aut
7552 1203 1064 7 Vietel Corporation
24560 1151 336 184 Bharti Airtel Ltd.
9583 1057 77 492 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
4808 957 2023 277 CNCGROUP IP network: China169
17488 953 164 100 Hathway IP Over Cable Interne

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 3646 3822 256 bellsouth.net, inc.
4323 2577 1104 399 Time Warner Telecom
1785 1788 681 127 AppliedTheory Corporation
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
19262 1497 4949 299 Verizon Global Networks
7018 1361 6943 889 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
2386 1267 535 909 AT&T Data Communications Serv

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 1028 798 176 KPNQwest Backbone AS
9116 540 326 30 Goldenlines main autonomous s
6830 518 1780 319 UPC Distribution Services
3292 516 1997 391 TDC Tele Danmark
34984 508 106 184 Tellcom Iletisim Hizmetleri
20940 451 132 345 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 422 7609 367 Deutsche Telekom AG
8402 417 320 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 1458 270 155 TVCABLE BOGOTA
8151 1369 2681 362 Uninet S.A. de C.V.
28573 1298 990 89 Types of queries are: POCs, o
7303 929 470 150 Telecom Argentina Stet-France
6503 803 354 74 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 557 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
11172 496 100 84 Alestra
14117 492 47 44 Telefonica del Sur S.A.

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 879 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 430 90 8 Nile Online
36992 286 331 17 Etisalat MISR
3741 266 985 226 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 213 12 11 Starcomms Nigeria Limited
24835 209 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 86 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 3646 3822 256 bellsouth.net, inc.
4323 2577 1104 399 Time Warner Telecom
23456 2404 670 1296 >>UNKNOWN<<
4766 1891 9501 613 Korea Telecom (KIX)
17974 1804 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1788 681 127 AppliedTheory Corporation
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
7545 1565 301 86 TPG Internet Pty Ltd

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 2577 2178 Time Warner Telecom
17974 1804 1774 PT TELEKOMUNIKASI INDONESIA
1785 1788 1661 AppliedTheory Corporation
6478 1668 1617 AT&T Worldnet Services
18566 1782 1563 Covad Communications
7545 1565 1479 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1458 1294 Videsh Sanchar Nigam Ltd. Aut
4766 1891 1278 Korea Telecom (KIX)
11492 1262 1247 Cable One

Complete listing at http://thyme.rand.apnic.net/rviews/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 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
23502 UNALLOCATED 12.44.44.0/24 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
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
31.210.248.0/21 35706 Net at Once
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro

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 /8:21 /9:12 /10:28 /11:79 /12:223
/13:458 /14:797 /15:1424 /16:11836 /17:6012 /18:9997
/19:19785 /20:26318 /21:26189 /22:34380 /23:33298 /24:187579
/25:377 /26:348 /27:168 /28:281 /29:177 /30:606
/31:65 /32:614

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

ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1744 1782 Covad Communications
6478 1622 1668 AT&T Worldnet Services
10620 1348 1458 TVCABLE BOGOTA
4323 1285 2577 Time Warner Telecom
11492 1211 1262 Cable One
23456 1199 2404 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
286 888 1028 KPNQwest Backbone AS

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

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

1:264 2:71 4:18 5:1 6:3 8:354
12:1994 13:1 14:450 15:15 16:3 17:8
20:10 23:6 24:1640 27:739 31:304 32:126
33:3 34:2 37:1 38:764 40:101 41:2486
42:4 44:3 46:911 47:4 49:172 50:388
52:13 55:3 56:2 57:40 58:846 59:484
60:387 61:1256 62:1013 63:1936 64:3950 65:2306
66:4342 67:1898 68:1256 69:3074 70:744 71:352
72:1917 73:3 74:2395 75:316 76:345 77:891
78:695 79:449 80:1091 81:820 82:510 83:455
84:592 85:1087 86:611 87:770 88:332 89:1627
90:192 91:3722 92:511 93:1076 94:1293 95:813
96:483 97:255 98:847 99:35 101:69 103:9
107:6 108:85 109:954 110:585 111:708 112:318
113:401 114:538 115:659 116:962 117:678 118:817
119:1100 120:305 121:676 122:1619 123:1081 124:1255
125:1221 128:260 129:166 130:165 131:559 132:109
133:19 134:219 135:49 136:214 137:143 138:303
139:124 140:481 141:239 142:403 143:401 144:485
145:50 146:436 147:217 148:595 149:243 150:171
151:187 152:312 153:179 154:3 155:396 156:189
157:353 158:130 159:383 160:314 161:205 162:279
163:164 164:498 165:367 166:514 167:426 168:718
169:154 170:786 171:76 172:1 173:1560 174:550
175:371 177:119 178:866 180:818 181:19 182:436
183:208 184:341 185:1 186:1154 187:798 188:852
189:939 190:4857 192:5824 193:4870 194:3520 195:3105
196:1209 197:16 198:3595 199:3930 200:5529 201:1519
202:8352 203:8463 204:4140 205:2327 206:2761 207:3042
208:3973 209:3492 210:2726 211:1408 212:2014 213:1775
214:728 215:65 216:4911 217:1666 218:570 219:372
220:1206 221:482 222:342 223:146

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 08 May, 2011

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

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

BGP routing table entries examined: 351509
Prefixes after maximum aggregation: 159257
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176014
Total ASes present in the Internet Routing Table: 36290
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31367
Origin ASes announcing only one prefix: 15099
Transit ASes present in the Internet Routing Table: 4923
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1973
Unregistered ASNs in the Routing Table: 398
Number of 32-bit ASNs allocated by the RIRs: 1335
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2384
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 149
Number of addresses announced to Internet: 2440248832
Equivalent to 145 /8s, 115 /16s and 62 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 144555

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

Prefixes being announced by APNIC Region ASes: 85020
Total APNIC prefixes after maximum aggregation: 28582
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82249
Unique aggregates announced from the APNIC address blocks: 36825
APNIC Region origin ASes present in the Internet Routing Table: 4383
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 612328448
Equivalent to 36 /8s, 127 /16s and 100 /24s
Percentage of available APNIC address space announced: 77.7

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

Prefixes being announced by ARIN Region ASes: 139023
Total ARIN prefixes after maximum aggregation: 70758
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111712
Unique aggregates announced from the ARIN address blocks: 45329
ARIN Region origin ASes present in the Internet Routing Table: 14287
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5481
ARIN Region transit ASes present in the Internet Routing Table: 1428
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: 799937792
Equivalent to 47 /8s, 174 /16s and 21 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 84400
Total RIPE prefixes after maximum aggregation: 48008
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77823
Unique aggregates announced from the RIPE address blocks: 51241
RIPE Region origin ASes present in the Internet Routing Table: 15569
RIPE Prefixes per ASN: 5.00
RIPE Region origin ASes announcing only one prefix: 7803
RIPE Region transit ASes present in the Internet Routing Table: 2418
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 468211712
Equivalent to 27 /8s, 232 /16s and 88 /24s
Percentage of available RIPE address space announced: 75.4

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

Prefixes being announced by LACNIC Region ASes: 32224
Total LACNIC prefixes after maximum aggregation: 7378
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31421
Unique aggregates announced from the LACNIC address blocks: 16630
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.88
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 83123968
Equivalent to 4 /8s, 244 /16s and 95 /24s
Percentage of available LACNIC address space announced: 55.1

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: 7784
Total AfriNIC prefixes after maximum aggregation: 1863
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6133
Unique aggregates announced from the AfriNIC address blocks: 1906
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.72
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 23042304
Equivalent to 1 /8s, 95 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 34.3

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 1890 9485 612 Korea Telecom (KIX)
7545 1566 301 87 TPG Internet Pty Ltd
17974 1500 470 34 PT Telekomunikasi Indonesia
4755 1458 634 166 TATA Communications formerly
7552 1203 1064 7 Vietel Corporation
24560 1151 336 184 Bharti Airtel Ltd., Telemedia
9583 1058 78 493 Sify Limited
9829 1039 874 51 National Internet Backbone
4808 950 2017 277 CNCGROUP IP network China169
17488 936 164 100 Hathway IP Over Cable Interne

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 3647 3822 256 BellSouth.net Inc.
4323 2581 1104 400 tw telecom holdings, inc.
1785 1788 681 127 PaeTec Communications, Inc.
18566 1732 346 226 Covad Communications Co.
6478 1668 313 51 AT&T Services, Inc.
20115 1531 1536 636 Charter Communications
19262 1496 4949 298 Verizon Online LLC
7018 1370 6960 897 AT&T Services, Inc.
22773 1328 2897 87 Cox Communications Inc.
2386 1266 536 908 AT&T Data Communications Serv

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 540 326 30 Goldenlines main autonomous s
6830 517 1780 320 UPC Broadband
34984 508 106 184 BILISIM TELEKOM
3292 457 1997 391 TDC Data Networks
20940 450 132 345 Akamai Technologies European
8866 444 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 422 7609 367 Deutsche Telekom AG
12479 417 577 6 France Telecom Espana SA
8551 407 356 39 Bezeq International

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 1458 270 155 Types of queries are: POCs, o
28573 1280 990 89 Types of queries are: POCs, o
8151 1235 2681 356 Uninet S.A. de C.V.
7303 906 469 138 Telecom Argentina S.A.
6503 792 354 74 Axtel, S.A.B. de C.V.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 557 310 15 Types of queries are: POCs, o
3816 518 226 98 Types of queries are: POCs, o
11172 493 100 83 Alestra, S. de R.L. de C.V.
14117 492 47 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 877 445 11 TEDATA
24863 779 147 35 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 287 331 17 Etisalat MISR
3741 266 985 226 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 213 12 11 Starcomms Nigeria Limited
24835 209 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 148 441 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 3647 3822 256 BellSouth.net Inc.
4323 2581 1104 400 tw telecom holdings, inc.
23456 2384 672 1287 32-bit ASN transition
4766 1890 9485 612 Korea Telecom (KIX)
1785 1788 681 127 PaeTec Communications, Inc.
18566 1732 346 226 Covad Communications Co.
6478 1668 313 51 AT&T Services, Inc.
7545 1566 301 87 TPG Internet Pty Ltd
20115 1531 1536 636 Charter Communications
17974 1500 470 34 PT Telekomunikasi Indonesia

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 2581 2181 tw telecom holdings, inc.
1785 1788 1661 PaeTec Communications, Inc.
6478 1668 1617 AT&T Services, Inc.
18566 1732 1506 Covad Communications Co.
7545 1566 1479 TPG Internet Pty Ltd
17974 1500 1466 PT Telekomunikasi Indonesia
10620 1458 1303 Types of queries are: POCs, o
4755 1458 1292 TATA Communications formerly
4766 1890 1278 Korea Telecom (KIX)
11492 1259 1244 CABLE ONE, INC.

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
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.
26973 UNALLOCATED 12.39.152.0/24 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
--------------------------------

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 /8:21 /9:12 /10:28 /11:78 /12:223
/13:458 /14:789 /15:1390 /16:11658 /17:5760 /18:9623
/19:19351 /20:25626 /21:25707 /22:33792 /23:32440 /24:184089
/25:11 /26:17 /27:24 /28:158 /29:93 /30:49
/31:0 /32:112

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

ASN No of nets Total ann. Description
6389 2247 3647 BellSouth.net Inc.
18566 1700 1732 Covad Communications Co.
6478 1622 1668 AT&T Services, Inc.
10620 1348 1458 Types of queries are: POCs, o
4323 1287 2581 tw telecom holdings, inc.
11492 1208 1259 CABLE ONE, INC.
23456 1182 2384 32-bit ASN transition
7011 1062 1162 Frontier Communications of Am
1785 1054 1788 PaeTec Communications, Inc.
22773 845 1328 Cox Communications Inc.

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

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

1:263 2:55 4:14 5:1 6:3 8:353
12:1990 13:1 14:442 15:15 16:3 17:8
20:10 23:6 24:1623 27:734 31:304 32:55
33:3 34:2 37:1 38:760 40:101 41:2480
42:4 44:3 46:908 47:4 49:172 50:388
52:13 55:3 56:2 57:28 58:794 59:477
60:385 61:1066 62:996 63:1918 64:3900 65:2304
66:4305 67:1873 68:1079 69:2969 70:698 71:347
72:1884 73:1 74:2333 75:302 76:338 77:851
78:687 79:463 80:1077 81:814 82:499 83:447
84:632 85:1074 86:575 87:753 88:326 89:1591
90:192 91:3713 92:510 93:1063 94:1269 95:803
96:478 97:255 98:840 99:35 101:61 103:9
107:6 108:85 109:947 110:580 111:702 112:311
113:396 114:533 115:649 116:928 117:676 118:778
119:1093 120:303 121:650 122:1616 123:1064 124:1248
125:1206 128:207 129:158 130:159 131:556 132:100
133:19 134:210 135:49 136:211 137:140 138:302
139:110 140:458 141:238 142:384 143:397 144:483
145:50 146:430 147:206 148:579 149:242 150:163
151:187 152:310 153:179 154:2 155:390 156:186
157:323 158:130 159:376 160:314 161:197 162:278
163:154 164:498 165:347 166:513 167:426 168:708
169:152 170:782 171:76 172:1 173:1542 174:547
175:357 177:118 178:859 180:810 181:19 182:426
183:208 184:260 185:1 186:1152 187:796 188:847
189:939 190:4834 192:5739 193:4843 194:3465 195:2971
196:1205 197:16 198:3509 199:3889 200:5501 201:1502
202:8111 203:8315 204:4062 205:2295 206:2643 207:2965
208:3950 209:3451 210:2633 211:1366 212:1976 213:1723
214:725 215:65 216:4866 217:1661 218:554 219:369
220:1199 221:462 222:310 223:144

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 08 May, 2011

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

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

BGP routing table entries examined: 356692
Prefixes after maximum aggregation: 161230
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176104
Total ASes present in the Internet Routing Table: 37502
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31367
Origin ASes announcing only one prefix: 15098
Transit ASes present in the Internet Routing Table: 5081
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 597
Unregistered ASNs in the Routing Table: 302
Number of 32-bit ASNs allocated by the RIRs: 1335
Number of 32-bit ASNs visible in the Routing Table: 1054
Prefixes from 32-bit ASNs in the Routing Table: 2385
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 150
Number of addresses announced to Internet: 2423266240
Equivalent to 144 /8s, 112 /16s and 27 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 148228

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

Prefixes being announced by APNIC Region ASes: 89237
Total APNIC prefixes after maximum aggregation: 29927
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 85614
Unique aggregates announced from the APNIC address blocks: 36842
APNIC Region origin ASes present in the Internet Routing Table: 4433
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 612989728
Equivalent to 36 /8s, 137 /16s and 123 /24s
Percentage of available APNIC address space announced: 77.7

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

Prefixes being announced by ARIN Region ASes: 140349
Total ARIN prefixes after maximum aggregation: 71249
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112695
Unique aggregates announced from the ARIN address blocks: 45342
ARIN Region origin ASes present in the Internet Routing Table: 14360
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5494
ARIN Region transit ASes present in the Internet Routing Table: 1497
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 800042496
Equivalent to 47 /8s, 175 /16s and 174 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 83966
Total RIPE prefixes after maximum aggregation: 48017
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 77413
Unique aggregates announced from the RIPE address blocks: 51237
RIPE Region origin ASes present in the Internet Routing Table: 15571
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7807
RIPE Region transit ASes present in the Internet Routing Table: 2450
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 781
Number of RIPE addresses announced to Internet: 468185856
Equivalent to 27 /8s, 231 /16s and 243 /24s
Percentage of available RIPE address space announced: 75.4

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

Prefixes being announced by LACNIC Region ASes: 32749
Total LACNIC prefixes after maximum aggregation: 7498
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31783
Unique aggregates announced from the LACNIC address blocks: 16622
LACNIC Region origin ASes present in the Internet Routing Table: 1447
LACNIC Prefixes per ASN: 21.96
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 269
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: 208
Number of LACNIC addresses announced to Internet: 83155712
Equivalent to 4 /8s, 244 /16s and 219 /24s
Percentage of available LACNIC address space announced: 55.1

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: 7789
Total AfriNIC prefixes after maximum aggregation: 1863
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6154
Unique aggregates announced from the AfriNIC address blocks: 1916
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 4.7
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: 23046912
Equivalent to 1 /8s, 95 /16s and 171 /24s
Percentage of available AfriNIC address space announced: 34.3

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 2451 9493 916 Korea Telecom (KIX)
17974 1805 515 29 PT TELEKOMUNIKASI INDONESIA
7545 1565 301 86 TPG Internet Pty Ltd
4755 1460 634 167 TATA Communications formerly
7552 1203 1064 7 Vietel Corporation
24560 1151 336 184 Bharti Airtel Ltd., Telemedia
9583 1057 77 492 Sify Limited
4808 1036 2087 294 CNCGROUP IP network: China169
9829 1034 872 54 BSNL National Internet Backbo
17488 938 164 100 Hathway IP Over Cable Interne

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 3647 3822 255 bellsouth.net, inc.
4323 2582 1088 399 Time Warner Telecom
1785 1785 681 127 PaeTec Communications, Inc.
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
20115 1531 1536 636 Charter Communications
19262 1496 4949 298 Verizon Global Networks
7018 1359 6927 887 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
2386 1264 536 907 AT&T Data Communications Serv

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 519 1780 321 UPC Distribution Services
34984 508 106 184 BILISIM TELEKOM
3292 457 1997 391 TDC Tele Danmark
20940 446 131 342 Akamai Technologies European
8866 443 133 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 423 7609 368 Deutsche Telekom AG
12479 418 577 6 Uni2 Autonomous System
8551 406 355 45 Bezeq International
702 397 1802 310 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 1458 270 155 TVCABLE BOGOTA
8151 1366 2700 363 UniNet S.A. de C.V.
28573 1298 990 89 NET Servicos de Comunicao S.A
7303 929 470 150 Telecom Argentina Stet-France
6503 801 354 73 AVANTEL, S.A.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 557 310 15 VTR PUNTO NET S.A.
3816 518 226 99 Empresa Nacional de Telecomun
11172 495 84 83 Servicios Alestra S.A de C.V
13489 487 233 116 Orbitel S.A. E.S.P.

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 881 445 11 TEDATA
24863 782 147 37 LINKdotNET AS number
15475 421 90 8 Nile Online
36992 287 331 17 Etisalat MISR
3741 266 985 226 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 214 12 11 Starcomms Nigeria Limited
24835 209 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 149 441 86 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 3647 3822 255 bellsouth.net, inc.
4323 2582 1088 399 Time Warner Telecom
4766 2451 9493 916 Korea Telecom (KIX)
23456 2385 670 1291 32-bit ASN transition
17974 1805 515 29 PT TELEKOMUNIKASI INDONESIA
1785 1785 681 127 PaeTec Communications, Inc.
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
7545 1565 301 86 TPG Internet Pty Ltd
20115 1531 1536 636 Charter Communications

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 2582 2183 Time Warner Telecom
17974 1805 1776 PT TELEKOMUNIKASI INDONESIA
1785 1785 1658 PaeTec Communications, Inc.
6478 1668 1617 AT&T Worldnet Services
18566 1782 1563 Covad Communications
4766 2451 1535 Korea Telecom (KIX)
7545 1565 1479 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1460 1293 TATA Communications formerly
11492 1262 1247 Cable One

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
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
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic

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

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

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 /8:20 /9:12 /10:28 /11:78 /12:223
/13:458 /14:790 /15:1390 /16:11687 /17:5752 /18:9694
/19:19279 /20:25597 /21:25757 /22:34017 /23:32774 /24:185885
/25:1098 /26:1272 /27:707 /28:158 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2248 3647 bellsouth.net, inc.
18566 1744 1782 Covad Communications
6478 1622 1668 AT&T Worldnet Services
10620 1348 1458 TVCABLE BOGOTA
4323 1289 2582 Time Warner Telecom
11492 1211 1262 Cable One
23456 1183 2385 32-bit ASN transition
7011 1062 1162 Citizens Utilities
1785 1054 1785 PaeTec Communications, Inc.
22773 846 1329 Cox Communications, Inc.

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

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

1:265 2:56 4:14 5:1 6:3 8:353
12:1992 13:1 14:450 15:15 16:3 17:8
20:10 23:6 24:1627 27:735 31:304 32:60
33:3 34:2 37:1 38:764 40:101 41:2486
42:4 44:3 46:908 47:4 49:172 50:388
52:13 55:3 56:2 57:30 58:844 59:483
60:387 61:1245 62:995 63:1923 64:3926 65:2296
66:4317 67:1873 68:1080 69:2970 70:698 71:347
72:1884 73:1 74:2336 75:302 76:338 77:852
78:688 79:454 80:1080 81:812 82:494 83:446
84:631 85:1075 86:577 87:747 88:325 89:1590
90:192 91:3712 92:510 93:1062 94:1266 95:804
96:483 97:255 98:839 99:35 101:69 103:9
107:6 108:85 109:946 110:585 111:706 112:318
113:397 114:534 115:657 116:947 117:678 118:814
119:1139 120:305 121:673 122:1619 123:1080 124:1255
125:1221 128:259 129:163 130:165 131:562 132:109
133:19 134:218 135:49 136:214 137:143 138:302
139:112 140:479 141:239 142:400 143:399 144:486
145:50 146:436 147:206 148:595 149:243 150:171
151:187 152:310 153:179 154:3 155:395 156:189
157:352 158:130 159:383 160:315 161:205 162:278
163:164 164:498 165:349 166:513 167:426 168:717
169:153 170:785 171:76 172:1 173:1542 174:547
175:371 177:119 178:860 180:818 181:19 182:439
183:208 184:260 185:1 186:1154 187:795 188:846
189:939 190:4850 192:5790 193:4843 194:3466 195:2972
196:1202 197:16 198:3561 199:3921 200:5527 201:1506
202:8326 203:8431 204:4137 205:2324 206:2749 207:3039
208:3959 209:3479 210:2727 211:1372 212:1963 213:1724
214:726 215:65 216:4892 217:1661 218:565 219:371
220:1203 221:481 222:342 223:146

End of report
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Friday, May 6, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 07 May, 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: 361353
Prefixes after maximum aggregation: 162580
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 176085
Total ASes present in the Internet Routing Table: 37518
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31401
Origin ASes announcing only one prefix: 15061
Transit ASes present in the Internet Routing Table: 5060
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3137
Unregistered ASNs in the Routing Table: 329
Number of 32-bit ASNs allocated by the RIRs: 1333
Number of 32-bit ASNs visible in the Routing Table: 1057
Prefixes from 32-bit ASNs in the Routing Table: 2411
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 151
Number of addresses announced to Internet: 2423728587
Equivalent to 144 /8s, 119 /16s and 41 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 149812

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

Prefixes being announced by APNIC Region ASes: 87364
Total APNIC prefixes after maximum aggregation: 28829
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 83863
Unique aggregates announced from the APNIC address blocks: 36918
APNIC Region origin ASes present in the Internet Routing Table: 4418
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 612941761
Equivalent to 36 /8s, 136 /16s and 191 /24s
Percentage of available APNIC address space announced: 77.7

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

Prefixes being announced by ARIN Region ASes: 143269
Total ARIN prefixes after maximum aggregation: 73308
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115306
Unique aggregates announced from the ARIN address blocks: 45270
ARIN Region origin ASes present in the Internet Routing Table: 14375
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5488
ARIN Region transit ASes present in the Internet Routing Table: 1468
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 800066584
Equivalent to 47 /8s, 176 /16s and 12 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 87340
Total RIPE prefixes after maximum aggregation: 48367
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 80000
Unique aggregates announced from the RIPE address blocks: 51080
RIPE Region origin ASes present in the Internet Routing Table: 15598
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7764
RIPE Region transit ASes present in the Internet Routing Table: 2471
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 783
Number of RIPE addresses announced to Internet: 468534860
Equivalent to 27 /8s, 237 /16s and 70 /24s
Percentage of available RIPE address space announced: 75.5

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

Prefixes being announced by LACNIC Region ASes: 32845
Total LACNIC prefixes after maximum aggregation: 7524
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31897
Unique aggregates announced from the LACNIC address blocks: 16649
LACNIC Region origin ASes present in the Internet Routing Table: 1446
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 209
Number of LACNIC addresses announced to Internet: 83109644
Equivalent to 4 /8s, 244 /16s and 39 /24s
Percentage of available LACNIC address space announced: 55.0

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: 7818
Total AfriNIC prefixes after maximum aggregation: 1866
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6161
Unique aggregates announced from the AfriNIC address blocks: 1919
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.78
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23038976
Equivalent to 1 /8s, 95 /16s and 140 /24s
Percentage of available AfriNIC address space announced: 34.3

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 1890 9485 612 Korea Telecom (KIX)
17974 1812 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1566 301 87 TPG Internet Pty Ltd
4755 1458 374 164 Videsh Sanchar Nigam Ltd. Aut
7552 1204 1064 7 Vietel Corporation
24560 1151 336 184 Bharti Airtel Ltd.
9583 1057 77 492 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
17488 953 164 100 Hathway IP Over Cable Interne
4808 940 2011 280 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 3646 3822 256 bellsouth.net, inc.
4323 2577 1104 399 Time Warner Telecom
1785 1786 681 128 AppliedTheory Corporation
18566 1782 354 219 Covad Communications
6478 1667 313 52 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
19262 1498 4949 300 Verizon Global Networks
7018 1361 6927 889 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
2386 1265 535 908 AT&T Data Communications Serv

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 1028 798 176 KPNQwest Backbone AS
9116 540 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 516 1997 391 TDC Tele Danmark
34984 508 106 184 Tellcom Iletisim Hizmetleri
20940 451 132 345 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 421 7609 366 Deutsche Telekom AG
8402 419 320 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 1458 270 155 TVCABLE BOGOTA
8151 1370 2681 362 Uninet S.A. de C.V.
28573 1298 990 89 Types of queries are: POCs, o
7303 929 470 150 Telecom Argentina Stet-France
6503 803 354 74 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 557 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
11172 497 100 85 Alestra
14117 492 47 44 Telefonica del Sur S.A.

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 882 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 430 90 8 Nile Online
36992 286 331 17 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 213 12 11 Starcomms Nigeria Limited
24835 209 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 86 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 3646 3822 256 bellsouth.net, inc.
4323 2577 1104 399 Time Warner Telecom
23456 2411 670 1296 >>UNKNOWN<<
4766 1890 9485 612 Korea Telecom (KIX)
17974 1812 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1786 681 128 AppliedTheory Corporation
18566 1782 354 219 Covad Communications
6478 1667 313 52 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
7545 1566 301 87 TPG Internet Pty Ltd

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 2577 2178 Time Warner Telecom
17974 1812 1782 PT TELEKOMUNIKASI INDONESIA
1785 1786 1658 AppliedTheory Corporation
6478 1667 1615 AT&T Worldnet Services
18566 1782 1563 Covad Communications
7545 1566 1479 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1458 1294 Videsh Sanchar Nigam Ltd. Aut
4766 1890 1278 Korea Telecom (KIX)
11492 1262 1247 Cable One

Complete listing at http://thyme.rand.apnic.net/rviews/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
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
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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)
-----------------------------------------------------------

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

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

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 /9:12 /10:28 /11:79 /12:223
/13:458 /14:797 /15:1423 /16:11837 /17:6010 /18:9996
/19:19785 /20:26302 /21:26164 /22:34396 /23:33326 /24:187740
/25:375 /26:346 /27:168 /28:282 /29:183 /30:714
/31:65 /32:624

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

ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1744 1782 Covad Communications
6478 1621 1667 AT&T Worldnet Services
10620 1348 1458 TVCABLE BOGOTA
4323 1285 2577 Time Warner Telecom
11492 1211 1262 Cable One
23456 1193 2411 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1054 1786 AppliedTheory Corporation
286 888 1028 KPNQwest Backbone AS

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

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

1:265 2:72 4:18 5:1 6:3 8:354
12:1993 13:1 14:451 15:15 16:3 17:8
20:10 23:6 24:1640 27:738 31:304 32:129
33:3 34:2 37:1 38:765 40:101 41:2499
42:4 44:3 46:910 47:4 49:172 50:388
52:13 55:4 56:2 57:40 58:845 59:484
60:387 61:1257 62:1011 63:1937 64:3951 65:2311
66:4342 67:1898 68:1256 69:3075 70:744 71:351
72:1917 73:3 74:2396 75:313 76:346 77:877
78:696 79:474 80:1091 81:819 82:510 83:457
84:651 85:1090 86:611 87:774 88:331 89:1630
90:192 91:3719 92:512 93:1076 94:1297 95:812
96:482 97:255 98:830 99:35 101:69 103:9
107:6 108:85 109:954 110:583 111:709 112:318
113:400 114:538 115:659 116:964 117:678 118:818
119:1137 120:304 121:675 122:1619 123:1080 124:1255
125:1221 128:260 129:166 130:165 131:562 132:109
133:19 134:218 135:49 136:214 137:143 138:303
139:117 140:484 141:240 142:403 143:399 144:485
145:50 146:437 147:217 148:595 149:243 150:171
151:187 152:312 153:179 154:3 155:396 156:190
157:353 158:130 159:384 160:315 161:205 162:278
163:164 164:495 165:367 166:513 167:425 168:718
169:154 170:786 171:77 172:1 173:1556 174:550
175:373 177:119 178:865 180:816 181:19 182:439
183:208 184:341 185:1 186:1146 187:800 188:852
189:940 190:4855 192:5829 193:4853 194:3529 195:3102
196:1210 197:16 198:3598 199:3927 200:5529 201:1516
202:8369 203:8468 204:4141 205:2331 206:2769 207:3043
208:3973 209:3495 210:2729 211:1408 212:2030 213:1769
214:736 215:64 216:4910 217:1664 218:570 219:372
220:1207 221:486 222:342 223:146

End of report
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