Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Thu Nov 8 13:02:09 EST 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 09 Nov, 2001
Analysis Summary
----------------
BGP routing table entries examined: 107786
Origin ASes present in the Internet Routing Table: 11965
Origin ASes announcing only one prefix: 4470
Transit ASes present in the Internet Routing Table: 1569
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: 58
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1259246989
Equivalent to 75 /8s, 14 /16s and 149 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 52.4
Total number of prefixes smaller than registry allocations: 72980
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17045
Prefixes being announced from the APNIC address blocks: 15551
APNIC Region origin ASes present in the Internet Routing Table: 1399
APNIC Region origin ASes announcing only one prefix: 462
APNIC Region transit ASes present in the Internet Routing Table: 240
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 88551085
Equivalent to 5 /8s, 71 /16s and 46 /24s
Percentage of available APNIC address space announced: 74.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72934
Prefixes being announced from the ARIN address blocks: 51804
ARIN Region origin ASes present in the Internet Routing Table: 7137
ARIN Region origin ASes announcing only one prefix: 2171
ARIN Region transit ASes present in the Internet Routing Table: 727
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 219840985
Equivalent to 13 /8s, 26 /16s and 129 /24s
Percentage of available ARIN address space announced: 81.9
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 - 23551
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: 17806
Prefixes being announced from the RIPE address blocks: 14380
RIPE Region origin ASes present in the Internet Routing Table: 3433
RIPE Region origin ASes announcing only one prefix: 1837
RIPE Region transit ASes present in the Internet Routing Table: 601
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 109809412
Equivalent to 6 /8s, 139 /16s and 143 /24s
Percentage of available RIPE address space announced: 72.7
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 1550 1304 Telstra Pty Ltd
2764 403 357 connect.com.au pty ltd
703 391 351 UUNET Technologies, Inc.
2907 376 1897 SINET Japan
4766 362 1431 Korea Internet Exchange for "
4755 300 162 Videsh Sanchar Nigam Ltd. Aut
7474 297 275 Optus Communications Pty Ltd
4134 255 1918 Data Communications Bureau
4740 171 26 OzEmail ISP
17676 167 1957 XTAGE CORPORATION
9443 164 53 Primus Telecommunications
1659 154 1156 Taiwan Academic Network (TANe
17557 142 9 Pakistan Telecom
7539 140 142 TANet2, sponsored by NSC, TAI
4812 137 305 China Telecom (Group) - Shang
2521 130 171 PSINet Japan
9583 129 61 Satyam Infoway Ltd.,
9768 128 362 Korea Telecom
4786 121 14 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 976 1986 UUNET Technologies, Inc.
3301 428 950 TeliaNet Sweden
1257 269 500 SWIPnet Swedish IP Network
680 231 2148 DFN-IP service G-WiN
3215 231 568 France Telecom / &Equant
5515 197 688 Sonera Finland Autonomous Sys
3320 195 1957 Deutsche Telekom AG
786 184 1890 The JANET IP Service
8708 167 17 Romania Data Systems S.A.
5400 141 66 Concert European Core Network
719 132 289 LANLINK autonomous system
2856 131 777 BTnet UK Regional network
3303 131 560 Swisscom Ltd
5549 122 82 Nextra Deutschland GmbH + Co.
517 110 250 KPNQwest Germany GmbH
15878 110 9 Global Center Paris
12302 109 7 MobiFon S.A.
1273 108 177 Cable & Wireless ECRC GmbH
3269 105 808 TELECOM ITALIA
1270 102 672 UUNET Germany
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2263 9171 UUNET Technologies, Inc.
7018 1089 7344 AT&T
1 845 8554 BBN Planet
7046 832 1022 UUNET Technologies, Inc.
3967 807 465 Exodus Communication
1239 717 3383 Sprint
3908 664 1515 Supernet, Inc.
209 586 2182 Qwest
852 508 693 Telus Advanced Communications
690 497 71 Merit Network
2149 489 318 Performance Systems, Inc.
4323 481 403 Time Warner Communications, I
2914 477 2269 Verio, Inc.
4293 443 112 Cable & Wireless USA
705 406 163 UUNET Technologies, Inc.
3561 376 2299 Cable & Wireless USA
4151 363 1254 USDA
577 352 636 Bell Advanced Communications
3741 351 766 The Internet Solution
15290 340 339 AT&T Canada IES
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2263 9171 UUNET Technologies, Inc.
1221 1550 1304 Telstra Pty Ltd
7018 1089 7344 AT&T
702 976 1986 UUNET Technologies, Inc.
1 845 8554 BBN Planet
7046 832 1022 UUNET Technologies, Inc.
3967 807 465 Exodus Communication
1239 717 3383 Sprint
3908 664 1515 Supernet, Inc.
209 586 2182 Qwest
852 508 693 Telus Advanced Communications
690 497 71 Merit Network
2149 489 318 Performance Systems, Inc.
4323 481 403 Time Warner Communications, I
2914 477 2269 Verio, Inc.
4293 443 112 Cable & Wireless USA
3301 428 950 TeliaNet Sweden
705 406 163 UUNET Technologies, Inc.
2764 403 357 connect.com.au pty ltd
703 391 351 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.16.0/20 6461 AboveNet Communicati
6971 UNALLOCATED 64.42.32.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.56.0/22 6461 AboveNet Communicati
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.64.0/21 6461 AboveNet Communicati
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.80.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.104.0/22 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
6971 UNALLOCATED 66.182.0.0/18 2516 Kokusai Denshin Denw
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
6971 UNALLOCATED 199.164.144.0/24 2914 Verio, Inc.
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
65000 PRIVATE 203.21.200.0/24 1221 Telstra Pty Ltd
6971 UNALLOCATED 204.69.206.0/24 2914 Verio, Inc.
6971 UNALLOCATED 205.163.58.0/24 2914 Verio, Inc.
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.
6971 UNALLOCATED 207.12.40.0/22 2914 Verio, Inc.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
6971 UNALLOCATED 208.1.124.0/23 2914 Verio, Inc.
6971 UNALLOCATED 208.1.200.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.173.192.0/19 2914 Verio, Inc.
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 216.174.200.0/21 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 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.140.0/22 6461 AboveNet Communicati
6971 UNALLOCATED 216.210.160.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.176.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.184.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.200.0/22 6461 AboveNet Communicati
6971 UNALLOCATED 216.210.216.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.220.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.224.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.232.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.236.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.240.0/20 2914 Verio, Inc.
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
89.81.192.0/20 6695 DE-CIX AS
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
164.235.0.0/16 6025 US DOD NIC Unregistered
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 /10:7 /11:12 /12:37
/13:89 /14:221 /15:389 /16:7077 /17:1337 /18:2411
/19:7045 /20:5969 /21:4730 /22:7065 /23:8877 /24:60918
/25:311 /26:291 /27:287 /28:276 /29:160 /30:186
/31:1 /32:67
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1455 2263 UUNET Technologies, Inc.
1221 1407 1550 Telstra Pty Ltd
702 668 976 UUNET Technologies, Inc.
7046 659 832 UUNET Technologies, Inc.
3967 631 807 Exodus Communication
7018 565 1089 AT&T
690 494 497 Merit Network
3908 441 664 Supernet, Inc.
4293 428 443 Cable & Wireless USA
4323 417 481 Time Warner Communications, I
209 415 586 Qwest
1 407 845 BBN Planet
1239 403 717 Sprint
2149 365 489 Performance Systems, Inc.
2764 360 403 connect.com.au pty ltd
852 332 508 Telus Advanced Communications
705 329 406 UUNET Technologies, Inc.
703 322 391 UUNET Technologies, Inc.
4151 319 363 USDA
4766 276 362 Korea Internet Exchange for "
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:421 13:10 15:1 17:5
20:1 24:840 25:1 26:1 32:75 38:13
43:2 44:2 47:2 52:1 53:3 57:12
61:134 62:152 63:1891 64:1117 65:893 66:491
67:2 80:97 128:55 129:107 130:23 131:42
132:13 133:2 134:133 135:8 136:118 137:109
138:189 139:50 140:168 141:57 142:66 143:40
144:145 145:11 146:198 147:131 148:219 149:85
150:43 151:189 152:379 153:55 154:8 155:82
156:94 157:107 158:68 159:70 160:46 161:51
162:75 163:130 164:122 165:122 166:206 167:159
168:119 169:45 170:294 171:1 192:5373 193:2022
194:2058 195:849 196:465 198:3786 199:3502 200:2390
201:1 202:2802 203:4551 204:3352 205:2141 206:2783
207:2554 208:2991 209:2988 210:553 211:293 212:927
213:536 214:9 215:17 216:2931 217:431 218:6
End of report
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