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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 25 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106818
Origin ASes present in the Internet Routing Table: 11476
Origin ASes announcing only one prefix: 4211
Transit ASes present in the Internet Routing Table: 1491
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 41
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: 1221216939
Equivalent to 72 /8s, 202 /16s and 74 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 63.4
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72908
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16004
Prefixes being announced from the APNIC address blocks: 14374
APNIC Region origin ASes present in the Internet Routing Table: 1358
APNIC Region origin ASes announcing only one prefix: 461
APNIC Region transit ASes present in the Internet Routing Table: 226
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 77202281
Equivalent to 4 /8s, 154 /16s and 3 /24s
Percentage of available APNIC address space announced: 75.9
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: 73476
Prefixes being announced from the ARIN address blocks: 53324
ARIN Region origin ASes present in the Internet Routing Table: 6894
ARIN Region origin ASes announcing only one prefix: 2047
ARIN Region transit ASes present in the Internet Routing Table: 697
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 206302272
Equivalent to 12 /8s, 75 /16s and 236 /24s
Percentage of available ARIN address space announced: 76.9
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, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17334
Prefixes being announced from the RIPE address blocks: 13526
RIPE Region origin ASes present in the Internet Routing Table: 3229
RIPE Region origin ASes announcing only one prefix: 1703
RIPE Region transit ASes present in the Internet Routing Table: 568
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106110492
Equivalent to 6 /8s, 83 /16s and 30 /24s
Percentage of available RIPE address space announced: 70.3
RIPE AS Blocks 1877 - 1901, 2043, 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 1591 1315 Telstra Pty Ltd
2764 434 378 connect.com.au pty ltd
703 420 367 UUNET Technologies, Inc.
2907 366 1816 SINET Japan
4755 290 163 Videsh Sanchar Nigam Ltd. Aut
4134 242 1753 Data Communications Bureau
7474 234 289 Optus Communications Pty Ltd
7539 207 175 TANet2, sponsored by NSC, TAI
4740 203 25 OzEmail ISP
4766 188 1361 Korea Internet Exchange for "
7545 151 25 TPG Internet Pty Ltd
9443 145 39 Primus Telecommunications
4786 129 17 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
17561 116 167 Internet service provision to
4713 114 869 NTT Communications Corporatio
9583 113 61 Satyam Infoway Ltd.,
7586 110 17 Paradox Digital Pty Ltd
4812 109 278 China Telecom (Group)
7657 107 22 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 708 1746 UUNET Technologies, Inc.
3301 431 917 TeliaNet Sweden
15870 377 12 Global Center Frankfurt
1257 276 520 SWIPnet Swedish IP Network
680 232 2261 DFN-IP service G-WiN
1270 219 845 UUNET Germany
3215 216 511 France Telecom / &Equant
5515 194 688 Sonera Finland Autonomous Sys
786 185 1890 The JANET IP Service
3320 184 1940 Deutsche Telekom AG
719 180 291 LANLINK autonomous system
8708 152 19 Romania Data Systems S.A.
15878 142 12 Global Center Paris
5400 136 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 125 774 BTnet UK Regional network
5549 124 64 Nextra Deutschland GmbH + Co.
517 118 269 KPNQwest Germany GmbH
1267 103 1989 Infostrada S.p.A.
3269 102 783 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2293 8127 UUNET Technologies, Inc.
7018 1028 7125 AT&T
3908 902 662 Supernet, Inc.
1 878 8662 BBN Planet
2551 854 660 ICG NetAhead, Inc
7046 778 1041 UUNET Technologies, Inc.
1239 719 3257 Sprint
3967 604 487 Exodus Communication
209 515 2135 Qwest
2914 509 2313 Verio, Inc.
690 507 94 Merit Network
4293 478 114 Cable & Wireless USA
3561 418 2396 Cable & Wireless USA
2149 386 280 Performance Systems, Inc.
2548 386 998 Business Internet, Inc.
3549 366 820 Global Crossing
18994 356 10 Global Crossing
577 348 617 Bell Advanced Communications
6347 336 360 SAVVIS Communications Corpora
4323 335 316 Time Warner Communications, I
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2293 8127 UUNET Technologies, Inc.
1221 1591 1315 Telstra Pty Ltd
7018 1028 7125 AT&T
3908 902 662 Supernet, Inc.
1 878 8662 BBN Planet
2551 854 660 ICG NetAhead, Inc
7046 778 1041 UUNET Technologies, Inc.
1239 719 3257 Sprint
702 708 1746 UUNET Technologies, Inc.
3967 604 487 Exodus Communication
209 515 2135 Qwest
2914 509 2313 Verio, Inc.
690 507 94 Merit Network
4293 478 114 Cable & Wireless USA
2764 434 378 connect.com.au pty ltd
3301 431 917 TeliaNet Sweden
703 420 367 UUNET Technologies, Inc.
3561 418 2396 Cable & Wireless USA
2149 386 280 Performance Systems, Inc.
2548 386 998 Business Internet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65534 PRIVATE 62.23.176.0/24 6675 Colt Telecommunicati
65534 PRIVATE 62.23.177.0/24 6675 Colt Telecommunicati
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw
578 UNALLOCATED 64.230.242.0/28 577 Bell Advanced Commun
578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw
1877 UNALLOCATED 192.108.199.0/24 1755 Ebone Transit Core
65460 PRIVATE 192.231.11.0/24 7018 AT&T
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc.
6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc.
6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
82.105.0.0/16 3269 TELECOM ITALIA
82.105.128.0/17 3269 TELECOM ITALIA
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 Headquarters Standard Systems
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 DISA NETWORK SERVICES
172.32.1.0/25 1221 Telstra Pty Ltd
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 /8:18 /9:5 /10:6 /11:11 /12:30
/13:84 /14:224 /15:373 /16:6897 /17:1220 /18:2309
/19:6867 /20:5656 /21:4640 /22:6890 /23:8742 /24:60901
/25:341 /26:370 /27:337 /28:328 /29:261 /30:229
/31:0 /32:79
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1447 2293 UUNET Technologies, Inc.
1221 1441 1591 Telstra Pty Ltd
2551 748 854 ICG NetAhead, Inc
3908 748 902 Supernet, Inc.
7046 603 778 UUNET Technologies, Inc.
7018 534 1028 AT&T
690 503 507 Merit Network
4293 461 478 Cable & Wireless USA
702 457 708 UUNET Technologies, Inc.
3967 424 604 Exodus Communication
1 412 878 BBN Planet
1239 398 719 Sprint
2764 387 434 connect.com.au pty ltd
15870 373 377 Global Center Frankfurt
209 367 515 Qwest
18994 354 356 Global Crossing
703 350 420 UUNET Technologies, Inc.
11371 309 322 Rhythms NetConnections
4323 286 335 Time Warner Communications, I
4151 285 327 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:404 13:10 15:1 17:6
20:1 24:697 26:1 32:32 38:8 43:5
44:2 53:2 55:1 57:15 61:69 62:137
63:1902 64:1354 65:616 66:427 80:34 128:43
129:114 130:19 131:44 132:12 133:1 134:138
135:9 136:22 137:142 138:199 139:46 140:139
141:160 142:64 143:40 144:143 145:11 146:143
147:129 148:213 149:89 150:37 151:208 152:406
153:31 154:23 155:77 156:84 157:122 158:72
159:65 160:45 161:58 162:67 163:158 164:107
165:92 166:184 167:142 168:121 169:36 170:284
171:2 192:5454 193:1931 194:2037 195:817 196:411
198:3715 199:3386 200:2433 201:1 202:2720 203:4598
204:3479 205:2361 206:3036 207:2773 208:3082 209:3232
210:528 211:123 212:795 213:461 214:7 215:13
216:3070 217:367 218:2
End of report
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