Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Jun 14 14:06:51 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 15 Jun, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105884
Origin ASes present in the Internet Routing Table: 11066
Origin ASes announcing only one prefix: 4042
Transit ASes present in the Internet Routing Table: 1481
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: 84
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 14
Number of addresses announced to Internet: 1252712430
Equivalent to 74 /8s, 170 /16s and 223 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 65.7
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 72546
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16025
Prefixes being announced from the APNIC address blocks: 14568
APNIC Region origin ASes present in the Internet Routing Table: 1284
APNIC Region origin ASes announcing only one prefix: 454
APNIC Region transit ASes present in the Internet Routing Table: 218
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 70733100
Equivalent to 4 /8s, 55 /16s and 77 /24s
Percentage of available APNIC address space announced: 69.5
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: 72897
Prefixes being announced from the ARIN address blocks: 52120
ARIN Region origin ASes present in the Internet Routing Table: 6734
ARIN Region origin ASes announcing only one prefix: 1996
ARIN Region transit ASes present in the Internet Routing Table: 703
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 12
Number of ARIN addresses announced to Internet: 200030041
Equivalent to 11 /8s, 236 /16s and 55 /24s
Percentage of available ARIN address space announced: 79.5
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: 16945
Prefixes being announced from the RIPE address blocks: 13030
RIPE Region origin ASes present in the Internet Routing Table: 3079
RIPE Region origin ASes announcing only one prefix: 1592
RIPE Region transit ASes present in the Internet Routing Table: 560
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 133597214
Equivalent to 7 /8s, 246 /16s and 136 /24s
Percentage of available RIPE address space announced: 88.5
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 1743 1347 Telstra
2764 917 367 connect.com.au pty ltd
2907 374 1800 SINET Japan
4755 348 225 VSNL India
703 341 374 UUNET Technologies, Inc.
7474 226 275 Optus Communications
7539 220 195 TANet2, sponsored by NSC, TAI
4134 218 1439 Data Communications Bureau
4766 174 1258 KORnet Powered BY Korea Telec
4740 156 21 Ozemail
7545 148 21 TPG Internet Pty Ltd
7657 146 25 The Internet Group Limited
9443 132 38 INTERNETPRIMUS-AS-A
4786 128 15 NetConnect Communications Pty
4763 117 85 Telstra New Zealand
9583 115 61 Satyam Infoway Ltd.,
17561 115 151 Internet service provision to
7586 111 17 Paradox Digital Pty. Ltd
4713 108 853 NTT-OCNET
9797 104 32 Asia Online Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 657 1780 UUNET Technologies, Inc.
15870 435 7 Global Center Frankfurt
3301 411 917 TeliaNet Sweden
1257 281 502 Swipnet AB
1270 260 863 UUNET Germany
680 230 2055 Deutschef Forschurgsnetz
15878 216 8 Global Center Paris
3215 208 486 RAIN
719 186 291 LANLINK
786 185 1904 JANET IP Service
5515 175 654 Sonera Finland
3320 167 1410 Deutsche Telekom AG
5400 138 68 Concert Internet Plus Europea
8708 137 14 Romania Data System
3303 129 592 Swisscom
517 128 273 Xlink
2856 120 776 BTnet UK Regional network
1267 100 1956 IUnet S.p.A
1290 97 406 PSINet UK Ltd.
3269 92 664 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2457 8044 UUNET Technologies, Inc.
1 938 8842 BBN Planet
7018 909 6950 AT&T
7046 802 1098 UUNET Technologies, Inc.
3491 675 392 CAIS Internet
1239 642 3195 Sprint ICM-Inria
2914 553 2348 Verio, Inc.
3561 552 2407 Cable & Wireless USA
690 514 70 Merit Network
4293 494 101 Cable & Wireless USA
209 467 1838 Qwest
18994 467 10 Global Crossing
2548 419 998 Digital Express Group, Inc.
2149 412 457 Performance Systems, Inc.
3908 400 566 Supernet, Inc.
705 362 58 UUNET Technologies, Inc.
5106 353 137 Ameritech Advanced Data Servi
3549 339 1065 Global Crossing
3967 338 456 Exodus Communication
11371 337 100 Rhythms NetConnections
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2457 8044 UUNET Technologies, Inc.
1221 1743 1347 Telstra
1 938 8842 BBN Planet
2764 917 367 connect.com.au pty ltd
7018 909 6950 AT&T
7046 802 1098 UUNET Technologies, Inc.
3491 675 392 CAIS Internet
702 657 1780 UUNET Technologies, Inc.
1239 642 3195 Sprint ICM-Inria
2914 553 2348 Verio, Inc.
3561 552 2407 Cable & Wireless USA
690 514 70 Merit Network
4293 494 101 Cable & Wireless USA
209 467 1838 Qwest
18994 467 10 Global Crossing
15870 435 7 Global Center Frankfurt
2548 419 998 Digital Express Group, Inc.
2149 412 457 Performance Systems, Inc.
3301 411 917 TeliaNet Sweden
3908 400 566 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
19791 UNALLOCATED 63.85.88.0/22 701 UUNET Technologies,
19772 UNALLOCATED 63.85.211.0/24 701 UUNET Technologies,
16841 UNALLOCATED 63.109.95.0/24 3356 Level 3 Communicatio
19229 UNALLOCATED 63.109.152.0/22 701 UUNET Technologies,
19874 UNALLOCATED 63.119.205.0/24 701 UUNET Technologies,
19874 UNALLOCATED 63.142.232.0/24 701 UUNET Technologies,
19780 UNALLOCATED 63.145.50.0/24 12179 InterNAP Network Ser
19780 UNALLOCATED 63.145.61.0/24 12179 InterNAP Network Ser
65530 PRIVATE 63.188.0.0/20 4999 Sprint
65530 PRIVATE 63.188.0.0/18 4999 Sprint
65530 PRIVATE 63.188.16.0/20 4999 Sprint
65530 PRIVATE 63.188.32.0/20 4999 Sprint
65530 PRIVATE 63.188.48.0/20 4999 Sprint
65530 PRIVATE 63.188.64.0/20 4999 Sprint
65530 PRIVATE 63.188.64.0/18 4999 Sprint
65530 PRIVATE 63.188.80.0/20 4999 Sprint
65530 PRIVATE 63.188.96.0/20 4999 Sprint
65530 PRIVATE 63.188.112.0/20 4999 Sprint
65530 PRIVATE 63.188.128.0/20 4999 Sprint
65530 PRIVATE 63.188.128.0/18 4999 Sprint
65530 PRIVATE 63.188.144.0/20 4999 Sprint
65530 PRIVATE 63.188.160.0/20 4999 Sprint
65530 PRIVATE 63.188.176.0/20 4999 Sprint
19853 UNALLOCATED 63.251.35.0/24 12179 InterNAP Network Ser
19824 UNALLOCATED 64.60.208.0/20 2548 Digital Express Grou
578 UNALLOCATED 64.230.242.0/27 577 Bell Canada
19771 UNALLOCATED 65.89.150.0/24 174 PSINet Inc.
19607 UNALLOCATED 65.113.228.0/24 209 Qwest
19833 UNALLOCATED 65.160.120.0/24 1239 Sprint ICM-Inria
19743 UNALLOCATED 65.163.182.0/24 1239 Sprint ICM-Inria
19159 UNALLOCATED 65.163.208.0/24 1239 Sprint ICM-Inria
19159 UNALLOCATED 65.163.210.0/24 1239 Sprint ICM-Inria
19772 UNALLOCATED 65.166.200.0/24 701 UUNET Technologies,
19853 UNALLOCATED 65.197.91.0/24 12179 InterNAP Network Ser
19841 UNALLOCATED 66.21.63.0/24 6383 bellsouth.net, inc.
19743 UNALLOCATED 66.89.98.0/24 1239 Sprint ICM-Inria
19771 UNALLOCATED 149.2.143.0/24 174 PSINet Inc.
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
19229 UNALLOCATED 170.131.224.0/19 701 UUNET Technologies,
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
19607 UNALLOCATED 192.216.78.0/24 1 BBN Planet
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
20043 UNALLOCATED 200.63.65.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.66.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.67.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.68.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.69.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.70.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.71.0/24 16814 NSS, S.A.
20043 UNALLOCATED 200.63.73.0/24 16814 NSS, S.A.
9700 UNALLOCATED 202.30.50.0/23 3786 DACOM Corporation
17653 UNALLOCATED 202.52.192.0/24 4637 Hong Kong Telecom
17653 UNALLOCATED 202.52.193.0/24 4637 Hong Kong Telecom
17653 UNALLOCATED 202.52.195.0/24 9225 Level 3 Communicatio
17653 UNALLOCATED 202.52.200.0/24 4637 Hong Kong Telecom
65502 PRIVATE 203.166.83.0/24 10084 Western Australian I
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
9700 UNALLOCATED 203.255.208.0/24 3786 DACOM Corporation
9700 UNALLOCATED 203.255.209.0/24 3786 DACOM Corporation
9700 UNALLOCATED 203.255.210.0/24 3786 DACOM Corporation
9700 UNALLOCATED 203.255.211.0/24 3786 DACOM Corporation
19336 UNALLOCATED 204.117.67.0/24 1239 Sprint ICM-Inria
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
19850 UNALLOCATED 205.148.123.0/24 1239 Sprint ICM-Inria
19850 UNALLOCATED 205.148.125.0/24 7018 AT&T
19336 UNALLOCATED 205.216.65.0/24 3561 Cable & Wireless USA
19816 UNALLOCATED 206.131.232.0/21 2914 Verio, Inc.
19816 UNALLOCATED 206.180.160.0/20 2914 Verio, Inc.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
19865 UNALLOCATED 207.99.22.0/24 701 UUNET Technologies,
19796 UNALLOCATED 207.246.208.0/24 2548 Digital Express Grou
19796 UNALLOCATED 207.246.209.0/24 2548 Digital Express Grou
19833 UNALLOCATED 208.131.42.0/23 1239 Sprint ICM-Inria
19824 UNALLOCATED 209.58.224.0/20 2548 Digital Express Grou
19865 UNALLOCATED 209.123.219.0/24 701 UUNET Technologies,
19841 UNALLOCATED 209.149.162.0/24 6383 bellsouth.net, inc.
19791 UNALLOCATED 209.190.154.0/23 701 UUNET Technologies,
19848 UNALLOCATED 216.168.144.0/20 577 Bell Canada
19848 UNALLOCATED 216.168.146.0/23 577 Bell Canada
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
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
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 /8:21 /9:5 /10:6 /11:9 /12:32
/13:77 /14:208 /15:350 /16:6903 /17:1180 /18:2187
/19:6746 /20:5272 /21:4540 /22:6825 /23:8710 /24:60569
/25:246 /26:349 /27:447 /28:456 /29:361 /30:300
/31:1 /32:84
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1594 1743 Telstra
701 1588 2457 UUNET Technologies, Inc.
2764 873 917 connect.com.au pty ltd
3491 650 675 CAIS Internet
7046 638 802 UUNET Technologies, Inc.
690 511 514 Merit Network
4293 477 494 Cable & Wireless USA
18994 465 467 Global Crossing
1 441 938 BBN Planet
15870 434 435 Global Center Frankfurt
7018 428 909 AT&T
702 416 657 UUNET Technologies, Inc.
209 350 467 Qwest
3561 342 552 Cable & Wireless USA
5106 341 353 Ameritech Advanced Data Servi
1239 325 642 Sprint ICM-Inria
11371 324 337 Rhythms NetConnections
18993 321 324 Global Crossing
705 318 362 UUNET Technologies, Inc.
2548 307 419 Digital Express Group, Inc.
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
6:12 9:6 12:559 13:13 15:11 17:13
20:2 24:855 26:1 30:1 32:31 35:4
38:572 40:2 44:11 47:37 52:2 53:4
55:1 56:5 57:15 61:89 62:194 63:2560
64:2848 65:1017 66:699 80:8 128:62 129:255
130:57 131:62 132:37 133:1 134:237 135:16
136:29 137:171 138:237 139:84 140:258 141:224
142:143 143:100 144:182 145:31 146:189 147:168
148:192 149:174 150:61 151:260 152:1104 153:37
154:27 155:141 156:74 157:156 158:112 159:100
160:70 161:126 162:151 163:224 164:177 165:280
166:270 167:165 168:204 169:54 170:453 171:20
172:1 192:31 193:2544 194:2719 195:1021 196:4
198:5 199:4057 200:2666 202:3691 203:6185 204:4355
205:2916 206:4188 207:3816 208:5113 209:4217 210:1140
211:312 212:1151 213:586 216:4699 217:384
End of report
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