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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 26 May, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106954
Origin ASes present in the Internet Routing Table: 10948
Origin ASes announcing only one prefix: 3994
Transit ASes present in the Internet Routing Table: 1455
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: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 1
Number of addresses announced to Internet: 1233664681
Equivalent to 73 /8s, 136 /16s and 58 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 64.1
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15575
Prefixes being announced from the APNIC address blocks: 14115
APNIC Region origin ASes present in the Internet Routing Table: 1255
APNIC Region origin ASes announcing only one prefix: 442
APNIC Region transit ASes present in the Internet Routing Table: 208
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 72391681
Equivalent to 4 /8s, 80 /16s and 156 /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: 74782
Prefixes being announced from the ARIN address blocks: 51350
ARIN Region origin ASes present in the Internet Routing Table: 6669
ARIN Region origin ASes announcing only one prefix: 1986
ARIN Region transit ASes present in the Internet Routing Table: 695
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 12
Number of ARIN addresses announced to Internet: 185237150
Equivalent to 11 /8s, 10 /16s and 126 /24s
Percentage of available ARIN address space announced: 84.9
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 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: 16586
Prefixes being announced from the RIPE address blocks: 12956
RIPE Region origin ASes present in the Internet Routing Table: 3020
RIPE Region origin ASes announcing only one prefix: 1560
RIPE Region transit ASes present in the Internet Routing Table: 550
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 98710178
Equivalent to 5 /8s, 226 /16s and 50 /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 1732 665 Telstra
2764 429 156 connect.com.au pty ltd
2907 363 875 SINET Japan
703 354 205 UUNET Technologies, Inc.
4755 338 110 VSNL India
4538 246 1049 China Education and Research
7539 206 91 TANet2, sponsored by NSC, TAI
4134 200 662 Data Communications Bureau
7474 193 86 Optus Communications
4740 187 20 Ozemail
4766 175 631 KORnet Powered BY Korea Telec
7657 161 13 The Internet Group Limited
1237 152 66 System Engineering Research I
17561 151 68 Internet service provision to
7545 150 11 TPG Internet Pty Ltd
9443 129 24 INTERNETPRIMUS-AS-A
4786 125 7 NetConnect Communications Pty
9394 125 18 CHINA RAILWAY TELECOMMUNICATI
7617 119 46 One.Net Pty Ltd
7586 114 5 Paradox Digital Pty. Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 624 844 UUNET Technologies, Inc.
15870 443 4 Global Center Frankfurt
3301 392 401 TeliaNet Sweden
1257 278 251 Swipnet AB
1270 262 440 UUNET Germany
680 227 1011 Deutschef Forschurgsnetz
3215 220 236 RAIN
786 186 952 JANET IP Service
719 185 145 LANLINK
5515 175 319 Sonera Finland
3320 163 709 Deutsche Telekom AG
5400 133 34 Concert Internet Plus Europea
517 128 136 Xlink
8708 128 7 Romania Data System
3303 127 296 Swisscom
2856 117 388 BTnet UK Regional network
1267 100 978 IUnet S.p.A
1290 97 203 PSINet UK Ltd.
1901 92 77 EUnet Austria
8342 88 44 Rostelecom Internet Center's
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2410 3768 UUNET Technologies, Inc.
7018 1835 3483 AT&T
705 1256 57 UUNET Technologies, Inc.
1 924 4458 BBN Planet
7046 800 565 UUNET Technologies, Inc.
3491 675 196 CAIS Internet
1239 659 1612 Sprint ICM-Inria
2914 589 1174 Verio, Inc.
3561 540 1208 Cable & Wireless USA
4293 497 51 Cable & Wireless USA
18994 474 5 Global Crossing
690 464 39 Merit Network
209 463 914 Qwest
2548 406 498 Digital Express Group, Inc.
3908 391 265 Supernet, Inc.
174 348 2589 PSINet Inc.
3549 344 524 Global Crossing
4323 341 140 Time Warner Communications, I
11371 337 50 Rhythms NetConnections
3602 334 72 Sprint Canada
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2410 3768 UUNET Technologies, Inc.
7018 1835 3483 AT&T
1221 1732 665 Telstra
705 1256 57 UUNET Technologies, Inc.
1 924 4458 BBN Planet
7046 800 565 UUNET Technologies, Inc.
3491 675 196 CAIS Internet
1239 659 1612 Sprint ICM-Inria
702 624 844 UUNET Technologies, Inc.
2914 589 1174 Verio, Inc.
3561 540 1208 Cable & Wireless USA
4293 497 51 Cable & Wireless USA
18994 474 5 Global Crossing
690 464 39 Merit Network
209 463 914 Qwest
15870 443 4 Global Center Frankfurt
2764 429 156 connect.com.au pty ltd
2548 406 498 Digital Express Group, Inc.
3301 392 401 TeliaNet Sweden
3908 391 265 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
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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 /8:20 /9:5 /10:6 /11:9 /12:31
/13:75 /14:207 /15:342 /16:6941 /17:1162 /18:2161
/19:6669 /20:5265 /21:4552 /22:6851 /23:8735 /24:61542
/25:262 /26:451 /27:454 /28:465 /29:384 /30:313
/31:1 /32:51
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:726 13:10 15:1 17:2 24:685
26:1 32:125 38:573 44:3 47:1 53:2
55:1 57:13 61:32 62:126 63:1972 64:1684
65:731 66:329 128:37 129:113 130:23 131:39
132:9 133:1 134:169 135:12 136:16 137:122
138:245 139:47 140:135 141:157 142:68 143:41
144:139 145:9 146:140 147:135 148:97 149:122
150:36 151:298 152:585 153:32 154:20 155:82
156:48 157:108 158:179 159:78 160:27 161:53
162:68 163:138 164:95 165:122 166:185 167:140
168:90 169:35 170:259 171:4 192:5436 193:1868
194:2033 195:736 196:399 198:3679 199:3404 200:2142
201:1 202:2464 203:4845 204:3362 205:2265 206:2834
207:2989 208:3043 209:3210 210:493 211:181 212:861
213:409 214:9 215:12 216:3037 217:252
End of report
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