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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 17 Jul, 2001
Analysis Summary
----------------
BGP routing table entries examined: 104528
Origin ASes present in the Internet Routing Table: 11288
Origin ASes announcing only one prefix: 4141
Transit ASes present in the Internet Routing Table: 1503
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 17
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 16
Number of addresses announced to Internet: 1242629951
Equivalent to 74 /8s, 17 /16s and 7 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 70992
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15505
Prefixes being announced from the APNIC address blocks: 13979
APNIC Region origin ASes present in the Internet Routing Table: 1321
APNIC Region origin ASes announcing only one prefix: 460
APNIC Region transit ASes present in the Internet Routing Table: 223
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 73930278
Equivalent to 4 /8s, 104 /16s and 22 /24s
Percentage of available APNIC address space announced: 72.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 71662
Prefixes being announced from the ARIN address blocks: 51589
ARIN Region origin ASes present in the Internet Routing Table: 6800
ARIN Region origin ASes announcing only one prefix: 2011
ARIN Region transit ASes present in the Internet Routing Table: 705
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 13
Number of ARIN addresses announced to Internet: 202111256
Equivalent to 12 /8s, 11 /16s and 249 /24s
Percentage of available ARIN address space announced: 80.3
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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 - 22527
ARIN Address Blocks 24/8, 63/8, 64/6, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17358
Prefixes being announced from the RIPE address blocks: 13420
RIPE Region origin ASes present in the Internet Routing Table: 3176
RIPE Region origin ASes announcing only one prefix: 1670
RIPE Region transit ASes present in the Internet Routing Table: 575
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 101354765
Equivalent to 6 /8s, 10 /16s and 141 /24s
Percentage of available RIPE address space announced: 67.1
RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv Description
1221 1679 1331 Telstra
2764 430 345 connect.com.au pty ltd
703 402 383 UUNET Technologies, Inc.
2907 367 1783 SINET Japan
4755 299 167 VSNL India
7474 241 293 Optus Communications
4134 233 1609 Data Communications Bureau
7539 194 170 TANet2, sponsored by NSC, TAI
4766 176 1336 KORnet Powered BY Korea Telec
7545 146 21 TPG Internet Pty Ltd
9443 140 39 INTERNETPRIMUS-AS-A
4786 130 17 NetConnect Communications Pty
4763 118 69 Telstra New Zealand
9583 116 60 Satyam Infoway Ltd.,
17561 115 151 Internet service provision to
7657 113 22 The Internet Group Limited
4740 109 15 Ozemail
4713 108 877 NTT-OCNET
4812 106 259 Shanghai Telecom Company
4732 105 357 DDI Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 674 1833 UUNET Technologies, Inc.
3301 430 918 TeliaNet Sweden
15870 423 12 Global Center Frankfurt
1257 280 504 Swipnet AB
1270 251 868 UUNET Germany
680 232 2069 Deutschef Forschurgsnetz
3215 220 495 RAIN
15878 206 8 Global Center Paris
719 187 291 LANLINK
786 184 1890 JANET IP Service
5515 174 654 Sonera Finland
3320 170 1410 Deutsche Telekom AG
8708 149 15 Romania Data System
5400 139 68 Concert Internet Plus Europea
3303 130 575 Swisscom
517 125 272 Xlink
2856 123 776 BTnet UK Regional network
5549 117 66 Seicom Computer Gmb
8503 107 3 PCNET - PCNET DATA Network
1267 106 1985 IUnet S.p.A
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2312 8342 UUNET Technologies, Inc.
7018 964 7035 AT&T
1 903 8714 BBN Planet
7046 748 1056 UUNET Technologies, Inc.
1239 679 3327 Sprint ICM-Inria
690 525 93 Merit Network
2914 520 2317 Verio, Inc.
209 493 1876 Qwest
4293 492 99 Cable & Wireless USA
3561 432 2450 Cable & Wireless USA
3908 417 583 Supernet, Inc.
2149 416 377 Performance Systems, Inc.
2548 415 1012 Digital Express Group, Inc.
18994 405 10 Global Crossing
3549 349 813 Global Crossing
11371 337 100 Rhythms NetConnections
4323 333 298 Time Warner Communications, I
3967 330 448 Exodus Communication
15290 322 342 AT&T Canada IES
6347 315 361 SAVVIS Communications Corpora
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2312 8342 UUNET Technologies, Inc.
1221 1679 1331 Telstra
7018 964 7035 AT&T
1 903 8714 BBN Planet
7046 748 1056 UUNET Technologies, Inc.
1239 679 3327 Sprint ICM-Inria
702 674 1833 UUNET Technologies, Inc.
690 525 93 Merit Network
2914 520 2317 Verio, Inc.
209 493 1876 Qwest
4293 492 99 Cable & Wireless USA
3561 432 2450 Cable & Wireless USA
2764 430 345 connect.com.au pty ltd
3301 430 918 TeliaNet Sweden
15870 423 12 Global Center Frankfurt
3908 417 583 Supernet, Inc.
2149 416 377 Performance Systems, Inc.
2548 415 1012 Digital Express Group, Inc.
18994 405 10 Global Crossing
703 402 383 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
578 UNALLOCATED 64.230.242.0/28 577 Bell Canada
578 UNALLOCATED 64.230.242.16/28 577 Bell Canada
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT
1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT
19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
65522 PRIVATE 202.36.235.0/24 4768 Clear Communications
64526 PRIVATE 202.37.160.0/24 4768 Clear Communications
4834 UNALLOCATED 202.74.192.0/20 4648 NZIX 2
17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET
4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net
19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
99.0.0.0/8 9638 National Agricultural Coopera
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 US DOD NIC Unregistered
172.32.1.0/25 1221 Telstra
172.122.0.0/16 701 UUNET Technologies, Inc.
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:5 /10:6 /11:9 /12:33
/13:80 /14:215 /15:357 /16:6907 /17:1188 /18:2233
/19:6743 /20:5401 /21:4516 /22:6830 /23:8666 /24:59003
/25:292 /26:363 /27:438 /28:446 /29:361 /30:338
/31:1 /32:77
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1524 1679 Telstra
701 1446 2312 UUNET Technologies, Inc.
7046 584 748 UUNET Technologies, Inc.
690 521 525 Merit Network
7018 479 964 AT&T
4293 476 492 Cable & Wireless USA
1 424 903 BBN Planet
702 424 674 UUNET Technologies, Inc.
15870 419 423 Global Center Frankfurt
18994 403 405 Global Crossing
2764 386 430 connect.com.au pty ltd
209 370 493 Qwest
1239 361 679 Sprint ICM-Inria
703 332 402 UUNET Technologies, Inc.
11371 324 337 Rhythms NetConnections
3908 315 417 Supernet, Inc.
18993 310 314 Global Crossing
2548 304 415 Digital Express Group, Inc.
4323 286 333 Time Warner Communications, I
8013 278 308 PSINet Ltd. Canada
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:578 13:13 15:11
17:13 20:6 24:848 26:1 32:42 35:2
38:9 40:2 43:4 44:11 45:1 47:40
52:2 53:4 55:1 56:5 57:15 61:112
62:196 63:2518 64:2738 65:1001 66:752 80:41
128:61 129:194 130:54 131:67 132:39 133:1
134:234 135:11 136:36 137:178 138:233 139:86
140:239 141:225 142:122 143:98 144:200 145:32
146:194 147:180 148:235 149:135 150:63 151:264
152:1029 153:40 154:25 155:144 156:92 157:157
158:110 159:82 160:85 161:146 162:161 163:220
164:170 165:247 166:258 167:153 168:201 169:53
170:451 171:20 172:1 192:32 193:2604 194:2740
195:1074 196:3 198:6 199:3868 200:2729 202:3768
203:5764 204:4361 205:2903 206:4117 207:3604 208:5205
209:4115 210:778 211:296 212:1144 213:687 216:4745
217:438 218:3
End of report
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