Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Apr 5 14:04:09 EDT 2001
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 06 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 102338
Origin ASes present in the Internet Routing Table: 10506
Origin ASes announcing only one prefix: 3773
Transit ASes present in the Internet Routing Table: 1397
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 15
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: 3
Number of addresses announced to Internet: 1218893376
Equivalent to 72 /8s, 166 /16s and 214 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 51.0
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15577
Prefixes being announced from the APNIC address blocks: 14073
APNIC Region origin ASes present in the Internet Routing Table: 1222
APNIC Region origin ASes announcing only one prefix: 439
APNIC Region transit ASes present in the Internet Routing Table: 204
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 69182459
Equivalent to 4 /8s, 31 /16s and 163 /24s
Percentage of available APNIC address space announced: 68.0
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: 70742
Prefixes being announced from the ARIN address blocks: 48171
ARIN Region origin ASes present in the Internet Routing Table: 6397
ARIN Region origin ASes announcing only one prefix: 1876
ARIN Region transit ASes present in the Internet Routing Table: 658
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 180496434
Equivalent to 10 /8s, 194 /16s and 40 /24s
Percentage of available ARIN address space announced: 82.8
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
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: 16002
Prefixes being announced from the RIPE address blocks: 12681
RIPE Region origin ASes present in the Internet Routing Table: 2885
RIPE Region origin ASes announcing only one prefix: 1458
RIPE Region transit ASes present in the Internet Routing Table: 533
Average RIPE Region AS path length visible: 6.0
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 96435151
Equivalent to 5 /8s, 191 /16s and 123 /24s
Percentage of available RIPE address space announced: 82.1
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, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /19 equiv Description
1221 2084 684 Telstra
2764 431 139 connect.com.au pty ltd
703 376 204 UUNET Technologies, Inc.
2907 365 884 SINET Japan
4755 291 108 VSNL India
4538 243 1024 China Education and Research
7474 196 86 Optus Communications
4134 183 615 Data Communications Bureau
4763 177 34 Telstra New Zealand
4766 177 618 KORnet Powered BY Korea Telec
1237 164 71 System Engineering Research I
7657 160 12 The Internet Group Limited
7539 158 101 Delegated to TWNIC for subseq
9269 156 22 Hong Kong CTI
7545 152 10 TPG Internet Pty Ltd
17561 150 60 Internet service provision to
4740 149 10 Ozemail
4786 127 7 NetConnect Communications Pty
7617 124 46 One.Net Pty Ltd
9797 123 10 Asia Online Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 427 634 UUNET Technologies, Inc.
3301 399 337 TeliaNet Sweden
1257 279 247 Swipnet AB
1270 278 448 UUNET Germany
680 208 913 Deutschef Forschurgsnetz
3215 203 227 RAIN
719 190 146 LANLINK
5515 190 336 Sonera Finland
786 184 959 JANET IP Service
3320 158 710 Deutsche Telekom AG
1849 139 243 UUNET UK (formerly PIPEX)
517 128 134 Xlink
5400 124 33 Concert Internet Plus Europea
3303 123 298 Swisscom
2856 122 388 BTnet UK Regional network
1290 115 206 PSINet UK Ltd.
8708 113 5 Romania Data System
1267 97 978 IUnet S.p.A
1901 97 69 EUnet Austria
2830 96 38 UUNET UK (formerly PIPEX)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2419 3628 UUNET Technologies, Inc.
705 1286 58 UUNET Technologies, Inc.
1 967 4497 BBN Planet
7018 948 3055 AT&T
7046 809 552 UUNET Technologies, Inc.
1239 642 1588 Sprint ICM-Inria
2914 605 1219 Verio, Inc.
3561 557 1249 Cable & Wireless USA
174 556 2768 PSINet Inc.
3549 540 496 Global Crossing
4293 482 51 Cable & Wireless USA
209 442 674 Qwest
690 414 49 Merit Network
2548 398 514 Digital Express Group, Inc.
3908 382 262 Supernet, Inc.
8112 372 76 Bell Atlantic Internet Soluti
8151 365 218 UniNet S.A. de C.V.
8013 339 55 PSINet Ltd. Canada
4323 337 136 Time Warner Communications, I
3967 332 223 Exodus Communication
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2419 3628 UUNET Technologies, Inc.
1221 2084 684 Telstra
705 1286 58 UUNET Technologies, Inc.
1 967 4497 BBN Planet
7018 948 3055 AT&T
7046 809 552 UUNET Technologies, Inc.
1239 642 1588 Sprint ICM-Inria
2914 605 1219 Verio, Inc.
3561 557 1249 Cable & Wireless USA
174 556 2768 PSINet Inc.
3549 540 496 Global Crossing
4293 482 51 Cable & Wireless USA
209 442 674 Qwest
2764 431 139 connect.com.au pty ltd
702 427 634 UUNET Technologies, Inc.
690 414 49 Merit Network
3301 399 337 TeliaNet Sweden
2548 398 514 Digital Express Group, Inc.
3908 382 262 Supernet, Inc.
703 376 204 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
2027 UNALLOCATED 150.186.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.187.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.188.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.189.0.0/16 10530 Interpacket Group, I
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,
65535 PRIVATE 203.24.169.0/24 17486 Swiftel Communicatio
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
5555 UNALLOCATED 205.110.64.0/24 721 DLA Systems Automati
5555 UNALLOCATED 205.110.68.0/22 721 DLA Systems Automati
5555 UNALLOCATED 205.110.72.0/21 721 DLA Systems Automati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised IANA Reserved Addresses
----------------------------------
Network Origin AS Description
91.16.23.0/24 11770 Net56
106.1.1.0/24 5705 Sirius Solutions, Inc.
106.1.2.0/24 5705 Sirius Solutions, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:4 /10:4 /11:10 /12:29
/13:66 /14:204 /15:330 /16:6916 /17:1116 /18:2088
/19:6536 /20:5007 /21:4411 /22:6680 /23:8570 /24:59077
/25:260 /26:339 /27:146 /28:108 /29:67 /30:174
/31:1 /32:174
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:351 13:10 15:1 17:1 24:700
26:1 32:10 38:7 44:3 47:1 53:2
55:1 57:9 61:28 62:134 63:1891 64:1422
65:652 66:216 91:1 106:2 128:31 129:122
130:20 131:25 132:11 133:1 134:152 135:8
136:17 137:115 138:247 139:52 140:108 141:172
142:55 143:151 144:37 145:9 146:134 147:92
148:149 149:134 150:26 151:360 152:874 153:33
154:13 155:75 156:38 157:103 158:61 159:79
160:18 161:56 162:91 163:135 164:128 165:126
166:174 167:135 168:80 169:30 170:210 171:2
192:5383 193:1867 194:2040 195:759 196:375 198:3642
199:3370 200:1889 202:2468 203:4958 204:3376 205:2254
206:2729 207:2784 208:2911 209:3208 210:495 211:171
212:816 213:379 214:9 215:11 216:2871 217:177
End of report
More information about the Rtma
mailing list