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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 23 May, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106765
Origin ASes present in the Internet Routing Table: 10914
Origin ASes announcing only one prefix: 3981
Transit ASes present in the Internet Routing Table: 1468
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 1
Number of addresses announced to Internet: 1215702342
Equivalent to 72 /8s, 118 /16s and 37 /24s
Percentage of available address space announced: 32.8
Percentage of allocated address space announced: 63.2
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16051
Prefixes being announced from the APNIC address blocks: 14587
APNIC Region origin ASes present in the Internet Routing Table: 1250
APNIC Region origin ASes announcing only one prefix: 436
APNIC Region transit ASes present in the Internet Routing Table: 210
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 72400195
Equivalent to 4 /8s, 80 /16s and 189 /24s
Percentage of available APNIC address space announced: 71.2
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: 74034
Prefixes being announced from the ARIN address blocks: 51200
ARIN Region origin ASes present in the Internet Routing Table: 6644
ARIN Region origin ASes announcing only one prefix: 1981
ARIN Region transit ASes present in the Internet Routing Table: 701
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 12
Number of ARIN addresses announced to Internet: 184697824
Equivalent to 11 /8s, 2 /16s and 67 /24s
Percentage of available ARIN address space announced: 84.7
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 63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 16668
Prefixes being announced from the RIPE address blocks: 13011
RIPE Region origin ASes present in the Internet Routing Table: 3017
RIPE Region origin ASes announcing only one prefix: 1558
RIPE Region transit ASes present in the Internet Routing Table: 555
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 98700162
Equivalent to 5 /8s, 226 /16s and 11 /24s
Percentage of available RIPE address space announced: 65.4
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 /19 equiv Description
1221 1734 665 Telstra
2764 884 173 connect.com.au pty ltd
2907 363 876 SINET Japan
703 359 209 UUNET Technologies, Inc.
4755 329 111 VSNL India
4538 244 1048 China Education and Research
7539 206 91 TANet2, sponsored by NSC, TAI
4134 198 638 Data Communications Bureau
7474 192 86 Optus Communications
4740 184 12 Ozemail
4766 177 648 KORnet Powered BY Korea Telec
7657 174 13 The Internet Group Limited
7545 156 11 TPG Internet Pty Ltd
17561 151 68 Internet service provision to
1237 150 50 System Engineering Research I
4786 127 7 NetConnect Communications Pty
9394 124 18 CHINA RAILWAY TELECOMMUNICATI
9443 123 23 INTERNETPRIMUS-AS-A
7617 119 46 One.Net Pty Ltd
7586 118 9 Paradox Digital Pty. Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 622 851 UUNET Technologies, Inc.
15870 449 3 Global Center Frankfurt
3301 392 401 TeliaNet Sweden
1257 278 251 Swipnet AB
1270 263 440 UUNET Germany
680 226 1011 Deutschef Forschurgsnetz
3215 217 236 RAIN
719 201 146 LANLINK
786 186 952 JANET IP Service
5515 175 319 Sonera Finland
3320 163 709 Deutsche Telekom AG
5400 132 34 Concert Internet Plus Europea
517 128 136 Xlink
3303 126 296 Swisscom
8708 125 7 Romania Data System
2856 117 388 BTnet UK Regional network
1267 100 978 IUnet S.p.A
1290 98 203 PSINet UK Ltd.
1901 91 69 EUnet Austria
8342 88 44 Rostelecom Internet Center's
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2377 3762 UUNET Technologies, Inc.
705 1244 57 UUNET Technologies, Inc.
7018 1025 3306 AT&T
1 953 4464 BBN Planet
7046 804 564 UUNET Technologies, Inc.
3491 677 180 CAIS Internet
1239 640 1612 Sprint ICM-Inria
2914 588 1175 Verio, Inc.
3561 546 1217 Cable & Wireless USA
4293 496 51 Cable & Wireless USA
209 483 916 Qwest
690 477 40 Merit Network
18994 475 5 Global Crossing
2548 406 498 Digital Express Group, Inc.
3908 390 265 Supernet, Inc.
3602 379 73 Sprint Canada
174 366 2605 PSINet Inc.
3549 349 526 Global Crossing
4323 340 140 Time Warner Communications, I
3967 337 227 Exodus Communication
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2377 3762 UUNET Technologies, Inc.
1221 1734 665 Telstra
705 1244 57 UUNET Technologies, Inc.
7018 1025 3306 AT&T
1 953 4464 BBN Planet
2764 884 173 connect.com.au pty ltd
7046 804 564 UUNET Technologies, Inc.
3491 677 180 CAIS Internet
1239 640 1612 Sprint ICM-Inria
702 622 851 UUNET Technologies, Inc.
2914 588 1175 Verio, Inc.
3561 546 1217 Cable & Wireless USA
4293 496 51 Cable & Wireless USA
209 483 916 Qwest
690 477 40 Merit Network
18994 475 5 Global Crossing
15870 449 3 Global Center Frankfurt
2548 406 498 Digital Express Group, Inc.
3301 392 401 TeliaNet Sweden
3908 390 265 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
60002 RESERVED 64.76.148.0/24 19583 IMPSAT CHILE S.A.
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
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
9242 UNALLOCATED 202.3.6.0/23 4515 Star Internet Servic
17441 UNALLOCATED 203.131.192.0/24 6347 SAVVIS Communication
65502 PRIVATE 203.166.83.0/24 10084 Western Australian I
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
172.16.0.1/32 703 UUNET Technologies, Inc.
Advertised IANA Reserved Addresses
----------------------------------
Network Origin AS Description
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 /8:19 /9:5 /10:6 /11:9 /12:31
/13:74 /14:207 /15:343 /16:6935 /17:1160 /18:2152
/19:6672 /20:5241 /21:4533 /22:6813 /23:8735 /24:61406
/25:263 /26:457 /27:455 /28:468 /29:387 /30:321
/31:1 /32:72
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:358 13:10 15:1 17:2 24:690
26:1 32:13 38:575 44:3 47:1 53:2
55:1 57:13 61:33 62:136 63:1964 64:1698
65:682 66:328 128:38 129:101 130:23 131:38
132:9 133:1 134:169 135:11 136:16 137:122
138:246 139:46 140:135 141:159 142:88 143:41
144:138 145:9 146:140 147:135 148:92 149:124
150:27 151:300 152:600 153:32 154:17 155:82
156:48 157:110 158:177 159:77 160:27 161:56
162:63 163:138 164:95 165:120 166:175 167:139
168:85 169:35 170:272 171:2 192:5455 193:1864
194:2042 195:743 196:400 198:3678 199:3403 200:2101
201:1 202:2514 203:4971 204:3393 205:2275 206:2851
207:2895 208:3021 209:3162 210:751 211:188 212:875
213:423 214:9 215:12 216:3054 217:253
End of report
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