BGP Routing: 2011-03-20

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, March 26, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 27 Mar, 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: 355642
Prefixes after maximum aggregation: 160840
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173558
Total ASes present in the Internet Routing Table: 37098
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 31140
Origin ASes announcing only one prefix: 14934
Transit ASes present in the Internet Routing Table: 5029
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 2570
Unregistered ASNs in the Routing Table: 245
Number of 32-bit ASNs allocated by the RIRs: 1232
Number of 32-bit ASNs visible in the Routing Table: 929
Prefixes from 32-bit ASNs in the Routing Table: 2031
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 199
Number of addresses announced to Internet: 2391438268
Equivalent to 142 /8s, 138 /16s and 115 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.7
Total number of prefixes smaller than registry allocations: 146975

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

Prefixes being announced by APNIC Region ASes: 85590
Total APNIC prefixes after maximum aggregation: 28802
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82564
Unique aggregates announced from the APNIC address blocks: 36645
APNIC Region origin ASes present in the Internet Routing Table: 4352
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 45
Number of APNIC addresses announced to Internet: 600724673
Equivalent to 35 /8s, 206 /16s and 84 /24s
Percentage of available APNIC address space announced: 76.2

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: 141554
Total ARIN prefixes after maximum aggregation: 72807
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113684
Unique aggregates announced from the ARIN address blocks: 44844
ARIN Region origin ASes present in the Internet Routing Table: 14291
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5418
ARIN Region transit ASes present in the Internet Routing Table: 1460
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: 10
Number of ARIN addresses announced to Internet: 797322520
Equivalent to 47 /8s, 134 /16s and 45 /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: 86107
Total RIPE prefixes after maximum aggregation: 47732
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 78643
Unique aggregates announced from the RIPE address blocks: 49952
RIPE Region origin ASes present in the Internet Routing Table: 15468
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7731
RIPE Region transit ASes present in the Internet Routing Table: 2450
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 687
Number of RIPE addresses announced to Internet: 465363644
Equivalent to 27 /8s, 188 /16s and 226 /24s
Percentage of available RIPE address space announced: 75.0

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: 32469
Total LACNIC prefixes after maximum aggregation: 7384
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 31400
Unique aggregates announced from the LACNIC address blocks: 16288
LACNIC Region origin ASes present in the Internet Routing Table: 1437
LACNIC Prefixes per ASN: 21.85
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 262
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: 183
Number of LACNIC addresses announced to Internet: 81516428
Equivalent to 4 /8s, 219 /16s and 215 /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: 7636
Total AfriNIC prefixes after maximum aggregation: 1816
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 5995
Unique aggregates announced from the AfriNIC address blocks: 1855
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.75
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 22667520
Equivalent to 1 /8s, 89 /16s and 225 /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 1852 9501 593 Korea Telecom (KIX)
7545 1552 301 85 TPG Internet Pty Ltd
4755 1477 393 156 Videsh Sanchar Nigam Ltd. Aut
17974 1451 472 34 PT TELEKOMUNIKASI INDONESIA
24560 1134 322 204 Bharti Airtel Ltd.
9583 1055 77 493 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
4808 963 2062 285 CNCGROUP IP network: China169
17488 951 162 96 Hathway IP Over Cable Interne
18101 938 116 142 Reliance Infocom Ltd Internet

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 3670 3822 257 bellsouth.net, inc.
4323 2558 1104 401 Time Warner Telecom
1785 1789 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
20115 1582 1544 648 Charter Communications
6478 1572 302 37 AT&T Worldnet Services
19262 1488 4935 304 Verizon Global Networks
7018 1364 6803 890 AT&T WorldNet Services
11492 1326 240 15 Cable One
22773 1285 2865 79 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 1007 796 167 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 515 1780 317 UPC Distribution Services
3292 510 2013 392 TDC Tele Danmark
34984 454 95 205 Tellcom Iletisim Hizmetleri
8866 444 133 24 Bulgarian Telecommunication C
9198 422 267 15 Kazakhtelecom Corporate Sales
20940 416 98 322 Akamai Technologies European
3320 411 7604 358 Deutsche Telekom AG
8402 406 320 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 1403 262 152 TVCABLE BOGOTA
28573 1250 970 83 Types of queries are: POCs, o
8151 1246 2674 368 Uninet S.A. de C.V.
6503 1225 354 73 AVANTEL, S.A.
7303 922 465 148 Telecom Argentina Stet-France
14420 638 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
13489 495 217 107 Orbitel S.A. E.S.P.
11172 487 83 80 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 845 445 11 TEDATA
24863 774 147 39 LINKdotNET AS number
15475 433 90 8 Nile Online
36992 298 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 214 199 11 Itissalat Al-MAGHRIB
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 3670 3822 257 bellsouth.net, inc.
4323 2558 1104 401 Time Warner Telecom
23456 2031 493 1100 >>UNKNOWN<<
4766 1852 9501 593 Korea Telecom (KIX)
1785 1789 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
20115 1582 1544 648 Charter Communications
6478 1572 302 37 AT&T Worldnet Services
7545 1552 301 85 TPG Internet Pty Ltd
19262 1488 4935 304 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 2558 2157 Time Warner Telecom
1785 1789 1658 AppliedTheory Corporation
6478 1572 1535 AT&T Worldnet Services
7545 1552 1467 TPG Internet Pty Ltd
17974 1451 1417 PT TELEKOMUNIKASI INDONESIA
18566 1606 1411 Covad Communications
4755 1477 1321 Videsh Sanchar Nigam Ltd. Aut
11492 1326 1311 Cable One
4766 1852 1259 Korea Telecom (KIX)
10620 1403 1251 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 2.59.0.0/16 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
26973 UNALLOCATED 12.39.155.0/24 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
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
31.187.112.0/20 35776 Teleos
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<

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 /14:771 /15:1398 /16:11694 /17:5937 /18:9742
/19:19573 /20:25359 /21:25622 /22:34049 /23:32717 /24:185367
/25:372 /26:343 /27:169 /28:205 /29:186 /30:657
/31:54 /32:629

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 1526 1572 AT&T Worldnet Services
4323 1373 2558 Time Warner Telecom
10620 1293 1403 TVCABLE BOGOTA
11492 1274 1326 Cable One
23456 1101 2031 >>UNKNOWN<<
7011 1063 1164 Citizens Utilities
1785 1056 1789 AppliedTheory Corporation
6503 1001 1225 AVANTEL, S.A.

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

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

1:288 2:72 4:18 5:1 8:347 12:2022
13:1 14:429 15:15 16:3 17:8 20:9
23:3 24:1586 27:700 31:14 32:126 33:3
34:2 37:1 38:748 39:1 40:101 41:2368
44:3 46:757 47:4 49:145 50:124 52:13
55:4 56:2 57:41 58:820 59:501 60:387
61:1170 62:1018 63:1923 64:3905 65:2356 66:4383
67:1831 68:1236 69:3015 70:746 71:365 72:1932
73:3 74:2377 75:298 76:347 77:860 78:700
79:470 80:1099 81:831 82:525 83:475 84:661
85:1052 86:557 87:795 88:350 89:1595 90:176
91:3667 92:506 93:1054 94:1252 95:797 96:452
97:252 98:817 99:35 101:49 106:1 107:4
108:47 109:933 110:517 111:679 112:325 113:380
114:512 115:719 116:986 117:672 118:759 119:1090
120:284 121:762 122:1610 123:1060 124:1321 125:1257
128:268 129:175 130:173 131:563 132:109 133:20
134:218 135:49 136:213 137:142 138:300 139:125
140:485 141:173 142:383 143:392 144:479 145:52
146:439 147:201 148:633 149:261 150:167 151:187
152:298 153:180 154:3 155:390 156:185 157:348
158:131 159:379 160:315 161:208 162:279 163:165
164:494 165:368 166:501 167:412 168:721 169:156
170:778 171:70 172:2 173:1270 174:536 175:350
177:74 178:760 180:786 181:4 182:412 183:192
184:314 185:1 186:1111 187:903 188:922 189:1031
190:4763 192:5799 193:4819 194:3540 195:3085 196:1221
197:15 198:3604 199:3892 200:5582 201:1599 202:8398
203:8468 204:4116 205:2320 206:2658 207:3029 208:3921
209:3503 210:2732 211:1366 212:2008 213:1767 214:757
215:66 216:4903 217:1631 218:561 219:383 220:1196
221:478 222:311 223:103

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 27 Mar, 2011

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

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

BGP routing table entries examined: 346562
Prefixes after maximum aggregation: 157556
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173432
Total ASes present in the Internet Routing Table: 35979
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31127
Origin ASes announcing only one prefix: 14980
Transit ASes present in the Internet Routing Table: 4852
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (42805) 21
Prefixes from unregistered ASNs in the Routing Table: 1856
Unregistered ASNs in the Routing Table: 331
Number of 32-bit ASNs allocated by the RIRs: 1232
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2014
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 189
Number of addresses announced to Internet: 2407861248
Equivalent to 143 /8s, 133 /16s and 12 /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: 89.7
Total number of prefixes smaller than registry allocations: 141939

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

Prefixes being announced by APNIC Region ASes: 83634
Total APNIC prefixes after maximum aggregation: 28498
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 81349
Unique aggregates announced from the APNIC address blocks: 36533
APNIC Region origin ASes present in the Internet Routing Table: 4308
APNIC Prefixes per ASN: 18.88
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 655
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 599647488
Equivalent to 35 /8s, 189 /16s and 229 /24s
Percentage of available APNIC address space announced: 76.0

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

Prefixes being announced by ARIN Region ASes: 137341
Total ARIN prefixes after maximum aggregation: 70325
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110086
Unique aggregates announced from the ARIN address blocks: 44884
ARIN Region origin ASes present in the Internet Routing Table: 14191
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5412
ARIN Region transit ASes present in the Internet Routing Table: 1404
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: 797249536
Equivalent to 47 /8s, 133 /16s and 16 /24s
Percentage of available ARIN address space announced: 63.4

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

Prefixes being announced by RIPE Region ASes: 83268
Total RIPE prefixes after maximum aggregation: 47368
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76614
Unique aggregates announced from the RIPE address blocks: 50089
RIPE Region origin ASes present in the Internet Routing Table: 15444
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7773
RIPE Region transit ASes present in the Internet Routing Table: 2385
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: 465193984
Equivalent to 27 /8s, 186 /16s and 76 /24s
Percentage of available RIPE address space announced: 74.9

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

Prefixes being announced by LACNIC Region ASes: 32017
Total LACNIC prefixes after maximum aggregation: 7256
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 31090
Unique aggregates announced from the LACNIC address blocks: 16272
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.77
LACNIC Region origin ASes announcing only one prefix: 444
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: 81489920
Equivalent to 4 /8s, 219 /16s and 112 /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: 7610
Total AfriNIC prefixes after maximum aggregation: 1814
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 5976
Unique aggregates announced from the AfriNIC address blocks: 1847
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.71
AfriNIC Region origin ASes announcing only one prefix: 131
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: 22651648
Equivalent to 1 /8s, 89 /16s and 163 /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 1852 9501 593 Korea Telecom (KIX)
7545 1551 301 84 TPG Internet Pty Ltd
4755 1479 653 158 TATA Communications formerly
17974 1450 472 34 PT Telekomunikasi Indonesia
24560 1134 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 493 Sify Limited
9829 1004 868 53 National Internet Backbone
4808 947 2034 278 CNCGROUP IP network China169
18101 935 116 139 Reliance Infocom Ltd Internet
17488 934 162 96 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 3670 3838 262 BellSouth.net Inc.
4323 2565 1109 402 tw telecom holdings, inc.
1785 1789 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1572 302 37 AT&T Services, Inc.
20115 1531 1541 648 Charter Communications
19262 1487 4935 303 Verizon Online LLC
7018 1372 6836 901 AT&T Services, Inc.
11492 1326 240 15 CABLE ONE, INC.
22773 1284 2865 79 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
3292 454 2013 391 TDC Data Networks
34984 454 95 205 BILISIM TELEKOM
8866 443 133 24 Bulgarian Telecommunication C
9198 422 267 15 Kazakhtelecom Data Network Ad
20940 415 98 322 Akamai Technologies European
3320 411 7604 358 Deutsche Telekom AG
8551 404 355 38 Bezeq International
702 398 1803 312 >>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 1403 262 152 Types of queries are: POCs, o
28573 1234 970 83 Types of queries are: POCs, o
8151 1226 2655 363 Uninet S.A. de C.V.
6503 1217 354 74 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 638 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
13489 493 217 107 EPM Telecomunicaciones S.A. E
11172 485 99 80 Alestra, S. de R.L. de C.V.

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 843 445 11 TEDATA
24863 771 147 37 LINKdotNET AS number
15475 425 90 8 Nile Online
36992 297 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 214 199 11 Itissalat Al-MAGHRIB
29571 192 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 262 BellSouth.net Inc.
4323 2565 1109 402 tw telecom holdings, inc.
23456 2014 493 1098 32-bit ASN transition
4766 1852 9501 593 Korea Telecom (KIX)
1785 1789 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1572 302 37 AT&T Services, Inc.
7545 1551 301 84 TPG Internet Pty Ltd
20115 1531 1541 648 Charter Communications
19262 1487 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 2565 2163 tw telecom holdings, inc.
1785 1789 1658 PaeTec Communications, Inc.
6478 1572 1535 AT&T Services, Inc.
7545 1551 1467 TPG Internet Pty Ltd
17974 1450 1416 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
4755 1479 1321 TATA Communications formerly
11492 1326 1311 CABLE ONE, INC.
4766 1852 1259 Korea Telecom (KIX)
10620 1403 1251 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
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
31.187.112.0/20 35776 Teleos
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<

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 /14:764 /15:1368 /16:11549 /17:5667 /18:9396
/19:19157 /20:24741 /21:25146 /22:33533 /23:31963 /24:182017
/25:10 /26:17 /27:24 /28:157 /29:99 /30:51
/31:0 /32:107

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 1526 1572 AT&T Services, Inc.
4323 1375 2565 tw telecom holdings, inc.
10620 1293 1403 Types of queries are: POCs, o
11492 1274 1326 CABLE ONE, INC.
23456 1087 2014 32-bit ASN transition
7011 1063 1164 Frontier Communications of Am
1785 1056 1789 PaeTec Communications, Inc.
6503 993 1217 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)
----------------------------------------------

1:287 2:53 4:14 5:1 8:346 12:2017
13:1 14:413 15:15 16:3 17:8 20:9
23:3 24:1568 27:698 31:14 32:56 33:3
34:2 37:1 38:744 39:1 40:101 41:2366
44:3 46:750 47:4 49:141 50:119 52:13
55:4 56:2 57:27 58:769 59:492 60:385
61:1063 62:1003 63:1912 64:3852 65:2348 66:4358
67:1804 68:1059 69:2911 70:700 71:359 72:1901
73:1 74:2317 75:284 76:339 77:851 78:696
79:459 80:1087 81:826 82:515 83:458 84:647
85:1030 86:553 87:770 88:343 89:1566 90:176
91:3656 92:505 93:1046 94:1232 95:778 96:447
97:252 98:809 99:35 101:41 106:1 107:4
108:47 109:923 110:516 111:671 112:314 113:378
114:489 115:712 116:939 117:652 118:748 119:1083
120:280 121:736 122:1605 123:1044 124:1308 125:1255
128:213 129:166 130:167 131:560 132:101 133:20
134:208 135:49 136:210 137:139 138:299 139:110
140:462 141:173 142:364 143:389 144:476 145:52
146:435 147:192 148:614 149:260 150:159 151:187
152:296 153:180 154:2 155:390 156:182 157:318
158:131 159:370 160:315 161:198 162:278 163:155
164:493 165:348 166:501 167:412 168:716 169:154
170:773 171:70 172:2 173:1258 174:532 175:338
177:74 178:754 180:777 181:4 182:400 183:192
184:233 185:1 186:1106 187:902 188:918 189:1031
190:4744 192:5714 193:4790 194:3485 195:2941 196:1216
197:15 198:3531 199:3853 200:5551 201:1584 202:8151
203:8357 204:4037 205:2292 206:2545 207:2951 208:3897
209:3466 210:2652 211:1354 212:1967 213:1713 214:757
215:66 216:4858 217:1621 218:546 219:380 220:1186
221:456 222:305 223:100

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 27 Mar, 2011

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

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

BGP routing table entries examined: 351370
Prefixes after maximum aggregation: 159547
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173571
Total ASes present in the Internet Routing Table: 37065
Prefixes per ASN: 9.48
Origin-only ASes present in the Internet Routing Table: 31144
Origin ASes announcing only one prefix: 14978
Transit ASes present in the Internet Routing Table: 4993
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 453
Unregistered ASNs in the Routing Table: 218
Number of 32-bit ASNs allocated by the RIRs: 1232
Number of 32-bit ASNs visible in the Routing Table: 928
Prefixes from 32-bit ASNs in the Routing Table: 2016
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 191
Number of addresses announced to Internet: 2390996288
Equivalent to 142 /8s, 131 /16s and 181 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.7
Total number of prefixes smaller than registry allocations: 145425

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

Prefixes being announced by APNIC Region ASes: 87690
Total APNIC prefixes after maximum aggregation: 29897
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 84570
Unique aggregates announced from the APNIC address blocks: 36634
APNIC Region origin ASes present in the Internet Routing Table: 4365
APNIC Prefixes per ASN: 19.37
APNIC Region origin ASes announcing only one prefix: 1211
APNIC Region transit ASes present in the Internet Routing Table: 692
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: 45
Number of APNIC addresses announced to Internet: 600711744
Equivalent to 35 /8s, 206 /16s and 34 /24s
Percentage of available APNIC address space announced: 76.2

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

Prefixes being announced by ARIN Region ASes: 138574
Total ARIN prefixes after maximum aggregation: 70807
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111007
Unique aggregates announced from the ARIN address blocks: 44893
ARIN Region origin ASes present in the Internet Routing Table: 14269
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5428
ARIN Region transit ASes present in the Internet Routing Table: 1477
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: 10
Number of ARIN addresses announced to Internet: 797228288
Equivalent to 47 /8s, 132 /16s and 189 /24s
Percentage of available ARIN address space announced: 63.4

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

Prefixes being announced by RIPE Region ASes: 82852
Total RIPE prefixes after maximum aggregation: 47377
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 76223
Unique aggregates announced from the RIPE address blocks: 50057
RIPE Region origin ASes present in the Internet Routing Table: 15441
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7774
RIPE Region transit ASes present in the Internet Routing Table: 2408
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 686
Number of RIPE addresses announced to Internet: 465042432
Equivalent to 27 /8s, 183 /16s and 252 /24s
Percentage of available RIPE address space announced: 74.9

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

Prefixes being announced by LACNIC Region ASes: 32405
Total LACNIC prefixes after maximum aggregation: 7353
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 31314
Unique aggregates announced from the LACNIC address blocks: 16271
LACNIC Region origin ASes present in the Internet Routing Table: 1439
LACNIC Prefixes per ASN: 21.76
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 182
Number of LACNIC addresses announced to Internet: 81523328
Equivalent to 4 /8s, 219 /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: 7625
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 5993
Unique aggregates announced from the AfriNIC address blocks: 1855
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: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22667264
Equivalent to 1 /8s, 89 /16s and 224 /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 2410 9509 897 Korea Telecom (KIX)
7545 1554 301 84 TPG Internet Pty Ltd
4755 1481 653 159 TATA Communications formerly
17974 1451 480 33 PT TELEKOMUNIKASI INDONESIA
24560 1134 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 493 Sify Limited
4808 1026 2096 294 CNCGROUP IP network: China169
9829 1004 868 53 BSNL National Internet Backbo
18101 938 116 142 Reliance Infocom Ltd Internet
17488 936 162 96 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 3672 3838 257 bellsouth.net, inc.
4323 2566 1093 401 Time Warner Telecom
1785 1784 681 129 PaeTec Communications, Inc.
18566 1606 331 195 Covad Communications
6478 1572 302 37 AT&T Worldnet Services
20115 1531 1541 648 Charter Communications
19262 1487 4935 303 Verizon Global Networks
7018 1360 6675 886 AT&T WorldNet Services
11492 1325 240 15 Cable One
22773 1285 2865 79 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 515 1780 318 UPC Distribution Services
3292 454 2013 391 TDC Tele Danmark
34984 454 95 205 BILISIM TELEKOM
8866 443 133 24 Bulgarian Telecommunication C
9198 422 267 15 Kazakhtelecom Data Network Ad
3320 412 7604 359 Deutsche Telekom AG
20940 411 98 317 Akamai Technologies European
8551 402 353 46 Bezeq International
12479 397 577 6 Uni2 Autonomous System
702 393 1800 307 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 1403 262 152 TVCABLE BOGOTA
28573 1250 970 83 NET Servicos de Comunicao S.A
8151 1246 2674 368 UniNet S.A. de C.V.
6503 1225 354 73 AVANTEL, S.A.
7303 922 465 148 Telecom Argentina Stet-France
14420 638 52 91 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 515 225 98 Empresa Nacional de Telecomun
13489 493 217 107 Orbitel S.A. E.S.P.
11172 486 83 79 Servicios Alestra S.A de C.V

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 298 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 214 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 148 441 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 3672 3838 257 bellsouth.net, inc.
4323 2566 1093 401 Time Warner Telecom
4766 2410 9509 897 Korea Telecom (KIX)
23456 2016 491 1098 32-bit ASN transition
1785 1784 681 129 PaeTec Communications, Inc.
18566 1606 331 195 Covad Communications
6478 1572 302 37 AT&T Worldnet Services
7545 1554 301 84 TPG Internet Pty Ltd
20115 1531 1541 648 Charter Communications
19262 1487 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 2566 2165 Time Warner Telecom
1785 1784 1655 PaeTec Communications, Inc.
6478 1572 1535 AT&T Worldnet Services
4766 2410 1513 Korea Telecom (KIX)
7545 1554 1470 TPG Internet Pty Ltd
17974 1451 1418 PT TELEKOMUNIKASI INDONESIA
18566 1606 1411 Covad Communications
4755 1481 1322 TATA Communications formerly
11492 1325 1310 Cable One
10620 1403 1251 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
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
31.187.112.0/20 35776 Teleos GmbH & Co.KG
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<

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 /14:766 /15:1370 /16:11585 /17:5704 /18:9427
/19:19076 /20:24727 /21:25234 /22:33661 /23:32189 /24:183658
/25:1137 /26:1276 /27:708 /28:39 /29:9 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2266 3672 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1526 1572 AT&T Worldnet Services
4323 1377 2566 Time Warner Telecom
10620 1293 1403 TVCABLE BOGOTA
11492 1273 1325 Cable One
23456 1090 2016 32-bit ASN transition
7011 1063 1164 Citizens Utilities
1785 1056 1784 PaeTec Communications, Inc.
6503 1001 1225 AVANTEL, S.A.

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

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

1:288 2:53 4:14 5:1 8:346 12:2015
13:1 14:427 15:15 16:3 17:8 20:9
23:3 24:1571 27:701 31:14 32:60 33:3
34:2 37:1 38:747 39:1 40:101 41:2367
44:3 46:750 47:4 49:145 50:120 52:13
55:4 56:2 57:30 58:819 59:499 60:387
61:1167 62:1002 63:1918 64:3878 65:2352 66:4369
67:1804 68:1060 69:2912 70:701 71:359 72:1903
73:1 74:2325 75:284 76:338 77:851 78:696
79:457 80:1088 81:826 82:511 83:463 84:648
85:1029 86:553 87:760 88:343 89:1565 90:176
91:3648 92:505 93:1043 94:1228 95:777 96:452
97:252 98:809 99:35 101:49 106:1 107:4
108:47 109:924 110:516 111:679 112:325 113:379
114:510 115:719 116:971 117:672 118:759 119:1092
120:283 121:760 122:1610 123:1060 124:1321 125:1257
128:265 129:171 130:173 131:563 132:108 133:20
134:216 135:49 136:212 137:142 138:293 139:112
140:485 141:173 142:380 143:391 144:479 145:52
146:439 147:192 148:632 149:261 150:167 151:187
152:298 153:180 154:3 155:390 156:185 157:347
158:131 159:377 160:315 161:208 162:279 163:165
164:493 165:350 166:501 167:412 168:715 169:155
170:778 171:70 172:2 173:1260 174:532 175:350
177:74 178:755 180:791 181:4 182:412 183:192
184:233 185:1 186:1107 187:903 188:917 189:1029
190:4763 192:5766 193:4790 194:3488 195:2930 196:1214
197:14 198:3588 199:3883 200:5578 201:1588 202:8390
203:8461 204:4110 205:2314 206:2643 207:3027 208:3897
209:3496 210:2723 211:1361 212:1954 213:1700 214:758
215:66 216:4884 217:1622 218:557 219:382 220:1192
221:476 222:311 223:103

End of report
_______________________________________________
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Friday, March 25, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 26 Mar, 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: 355585
Prefixes after maximum aggregation: 160821
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173489
Total ASes present in the Internet Routing Table: 37085
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 31141
Origin ASes announcing only one prefix: 14946
Transit ASes present in the Internet Routing Table: 5016
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: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 2567
Unregistered ASNs in the Routing Table: 245
Number of 32-bit ASNs allocated by the RIRs: 1230
Number of 32-bit ASNs visible in the Routing Table: 928
Prefixes from 32-bit ASNs in the Routing Table: 2029
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2391235515
Equivalent to 142 /8s, 135 /16s and 91 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.6
Total number of prefixes smaller than registry allocations: 146855

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

Prefixes being announced by APNIC Region ASes: 85651
Total APNIC prefixes after maximum aggregation: 28798
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82632
Unique aggregates announced from the APNIC address blocks: 36679
APNIC Region origin ASes present in the Internet Routing Table: 4352
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 45
Number of APNIC addresses announced to Internet: 600579521
Equivalent to 35 /8s, 204 /16s and 29 /24s
Percentage of available APNIC address space announced: 76.2

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

Prefixes being announced by ARIN Region ASes: 141545
Total ARIN prefixes after maximum aggregation: 72794
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113684
Unique aggregates announced from the ARIN address blocks: 44823
ARIN Region origin ASes present in the Internet Routing Table: 14287
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5419
ARIN Region transit ASes present in the Internet Routing Table: 1452
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: 10
Number of ARIN addresses announced to Internet: 797299224
Equivalent to 47 /8s, 133 /16s and 210 /24s
Percentage of available ARIN address space announced: 63.4

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

Prefixes being announced by RIPE Region ASes: 86027
Total RIPE prefixes after maximum aggregation: 47744
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 78560
Unique aggregates announced from the RIPE address blocks: 49914
RIPE Region origin ASes present in the Internet Routing Table: 15467
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7738
RIPE Region transit ASes present in the Internet Routing Table: 2450
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 686
Number of RIPE addresses announced to Internet: 465362108
Equivalent to 27 /8s, 188 /16s and 220 /24s
Percentage of available RIPE address space announced: 75.0

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

Prefixes being announced by LACNIC Region ASes: 32452
Total LACNIC prefixes after maximum aggregation: 7382
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 31386
Unique aggregates announced from the LACNIC address blocks: 16251
LACNIC Region origin ASes present in the Internet Routing Table: 1438
LACNIC Prefixes per ASN: 21.83
LACNIC Region origin ASes announcing only one prefix: 435
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: 182
Number of LACNIC addresses announced to Internet: 81505420
Equivalent to 4 /8s, 219 /16s and 172 /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: 7625
Total AfriNIC prefixes after maximum aggregation: 1812
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 5986
Unique aggregates announced from the AfriNIC address blocks: 1857
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.76
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22644224
Equivalent to 1 /8s, 89 /16s and 134 /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 1851 9501 592 Korea Telecom (KIX)
7545 1550 301 83 TPG Internet Pty Ltd
4755 1478 649 157 Videsh Sanchar Nigam Ltd. Aut
17974 1455 472 34 PT TELEKOMUNIKASI INDONESIA
24560 1130 321 203 Bharti Airtel Ltd.
9583 1055 77 493 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
4808 957 2033 280 CNCGROUP IP network: China169
17488 950 162 98 Hathway IP Over Cable Interne
18101 938 116 142 Reliance Infocom Ltd Internet

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 3673 3838 258 bellsouth.net, inc.
4323 2558 1104 401 Time Warner Telecom
1785 1789 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
20115 1581 1543 650 Charter Communications
6478 1571 302 36 AT&T Worldnet Services
19262 1488 4935 304 Verizon Global Networks
7018 1359 6819 887 AT&T WorldNet Services
11492 1325 240 15 Cable One
22773 1285 2865 79 Cox Communications, Inc.

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

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

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 1403 262 152 TVCABLE BOGOTA
28573 1250 970 83 Types of queries are: POCs, o
8151 1246 2674 368 Uninet S.A. de C.V.
6503 1217 354 73 AVANTEL, S.A.
7303 923 465 148 Telecom Argentina Stet-France
14420 638 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
13489 494 213 106 Orbitel S.A. E.S.P.
11172 487 83 80 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 843 445 11 TEDATA
24863 774 147 39 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 298 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 214 199 11 Itissalat Al-MAGHRIB
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 3673 3838 258 bellsouth.net, inc.
4323 2558 1104 401 Time Warner Telecom
23456 2029 492 1096 >>UNKNOWN<<
4766 1851 9501 592 Korea Telecom (KIX)
1785 1789 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
20115 1581 1543 650 Charter Communications
6478 1571 302 36 AT&T Worldnet Services
7545 1550 301 83 TPG Internet Pty Ltd
19262 1488 4935 304 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 2558 2157 Time Warner Telecom
1785 1789 1658 AppliedTheory Corporation
6478 1571 1535 AT&T Worldnet Services
7545 1550 1467 TPG Internet Pty Ltd
17974 1455 1421 PT TELEKOMUNIKASI INDONESIA
18566 1606 1411 Covad Communications
4755 1478 1321 Videsh Sanchar Nigam Ltd. Aut
11492 1325 1310 Cable One
4766 1851 1259 Korea Telecom (KIX)
10620 1403 1251 TVCABLE BOGOTA

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

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

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
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
31.186.112.0/21 8681 Jersey Telecom Ltd
31.186.160.0/21 35467 DataCenter Fryslan AS
31.186.168.0/21 16265 LeaseWeb AS Macro

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 /14:771 /15:1399 /16:11694 /17:5934 /18:9738
/19:19582 /20:25395 /21:25634 /22:34050 /23:32708 /24:185265
/25:371 /26:345 /27:167 /28:205 /29:186 /30:660
/31:54 /32:629

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

ASN No of nets Total ann. Description
6389 2266 3673 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1525 1571 AT&T Worldnet Services
4323 1373 2558 Time Warner Telecom
10620 1293 1403 TVCABLE BOGOTA
11492 1273 1325 Cable One
23456 1100 2029 >>UNKNOWN<<
7011 1063 1164 Citizens Utilities
1785 1056 1789 AppliedTheory Corporation
6503 994 1217 AVANTEL, S.A.

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

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

1:289 2:73 4:18 5:1 8:347 12:2023
13:1 14:428 15:15 16:3 17:8 20:9
23:3 24:1586 27:699 31:14 32:126 33:3
34:2 37:1 38:746 39:1 40:101 41:2364
44:3 46:757 47:4 49:146 50:123 52:13
55:4 56:2 57:41 58:819 59:502 60:387
61:1170 62:1018 63:1925 64:3905 65:2356 66:4384
67:1826 68:1237 69:3013 70:746 71:365 72:1930
73:3 74:2383 75:298 76:347 77:851 78:696
79:470 80:1099 81:831 82:525 83:466 84:661
85:1050 86:557 87:794 88:349 89:1589 90:176
91:3643 92:505 93:1054 94:1256 95:795 96:452
97:251 98:816 99:35 101:49 106:1 107:4
108:47 109:934 110:517 111:703 112:325 113:379
114:514 115:720 116:987 117:672 118:760 119:1091
120:282 121:762 122:1605 123:1060 124:1323 125:1256
128:235 129:174 130:173 131:563 132:109 133:20
134:218 135:49 136:212 137:142 138:300 139:125
140:485 141:173 142:383 143:392 144:477 145:52
146:440 147:203 148:631 149:261 150:167 151:187
152:298 153:180 154:3 155:389 156:185 157:348
158:131 159:377 160:313 161:208 162:278 163:165
164:494 165:368 166:500 167:412 168:721 169:156
170:778 171:70 172:2 173:1268 174:533 175:350
177:74 178:757 180:787 181:4 182:411 183:239
184:311 185:1 186:1112 187:903 188:922 189:1029
190:4736 192:5801 193:4812 194:3539 195:3084 196:1220
197:15 198:3603 199:3886 200:5585 201:1599 202:8394
203:8463 204:4115 205:2318 206:2658 207:3027 208:3919
209:3501 210:2732 211:1365 212:2005 213:1768 214:756
215:66 216:4901 217:1630 218:560 219:383 220:1196
221:480 222:317 223:103

End of report
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