Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Sep 13 14:09:15 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 14 Sep, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106686
Origin ASes present in the Internet Routing Table: 11640
Origin ASes announcing only one prefix: 4290
Transit ASes present in the Internet Routing Table: 1515
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: 73
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: 1252459404
Equivalent to 74 /8s, 167 /16s and 3 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72574
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16336
Prefixes being announced from the APNIC address blocks: 14731
APNIC Region origin ASes present in the Internet Routing Table: 1371
APNIC Region origin ASes announcing only one prefix: 457
APNIC Region transit ASes present in the Internet Routing Table: 225
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 80288845
Equivalent to 4 /8s, 201 /16s and 28 /24s
Percentage of available APNIC address space announced: 78.9
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: 72955
Prefixes being announced from the ARIN address blocks: 52501
ARIN Region origin ASes present in the Internet Routing Table: 6991
ARIN Region origin ASes announcing only one prefix: 2093
ARIN Region transit ASes present in the Internet Routing Table: 704
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208588806
Equivalent to 12 /8s, 110 /16s and 208 /24s
Percentage of available ARIN address space announced: 77.7
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 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: 17389
Prefixes being announced from the RIPE address blocks: 13767
RIPE Region origin ASes present in the Internet Routing Table: 3297
RIPE Region origin ASes announcing only one prefix: 1740
RIPE Region transit ASes present in the Internet Routing Table: 586
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107139931
Equivalent to 6 /8s, 98 /16s and 211 /24s
Percentage of available RIPE address space announced: 71.0
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 1606 1314 Telstra Pty Ltd
703 426 376 UUNET Technologies, Inc.
2764 421 377 connect.com.au pty ltd
2907 367 1816 SINET Japan
4755 292 159 Videsh Sanchar Nigam Ltd. Aut
4134 242 1799 Data Communications Bureau
7474 241 274 Optus Communications Pty Ltd
7539 212 199 TANet2, sponsored by NSC, TAI
4740 188 23 OzEmail ISP
4766 180 1336 Korea Internet Exchange for "
7545 146 25 TPG Internet Pty Ltd
9443 144 39 Primus Telecommunications
4786 127 17 NetConnect Communications Pty
17557 122 8 Pakistan Telecom
9583 121 62 Satyam Infoway Ltd.,
4763 120 69 Telstra New Zealand
9768 119 362 Korea Telecom
4713 116 884 NTT Communications Corporatio
17561 116 167 Internet service provision to
4812 115 297 China Telecom (Group)
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 799 1934 UUNET Technologies, Inc.
3301 439 919 TeliaNet Sweden
1257 279 522 SWIPnet Swedish IP Network
680 236 2292 DFN-IP service G-WiN
3215 227 515 France Telecom / &Equant
5515 194 688 Sonera Finland Autonomous Sys
3320 185 1940 Deutsche Telekom AG
786 184 1890 The JANET IP Service
15870 180 11 Global Center Frankfurt
8708 154 16 Romania Data Systems S.A.
1270 150 738 UUNET Germany
15878 138 12 Global Center Paris
719 137 288 LANLINK autonomous system
5400 136 64 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 126 774 BTnet UK Regional network
5549 125 66 Nextra Deutschland GmbH + Co.
517 117 269 KPNQwest Germany GmbH
1267 104 1990 Infostrada S.p.A.
3269 100 784 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2217 8180 UUNET Technologies, Inc.
7018 1038 7162 AT&T
3908 922 625 Supernet, Inc.
1 874 8636 BBN Planet
7046 795 988 UUNET Technologies, Inc.
1239 725 3262 Sprint
3967 601 473 Exodus Communication
209 540 2248 Qwest
2914 493 2244 Verio, Inc.
690 483 94 Merit Network
4293 466 113 Cable & Wireless USA
3561 408 2326 Cable & Wireless USA
2548 371 973 Business Internet, Inc.
3549 370 835 Global Crossing
2149 367 263 Performance Systems, Inc.
577 360 634 Bell Advanced Communications
4323 357 360 Time Warner Communications, I
15290 346 338 AT&T Canada IES
705 333 54 UUNET Technologies, Inc.
6347 333 360 SAVVIS Communications Corpora
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2217 8180 UUNET Technologies, Inc.
1221 1606 1314 Telstra Pty Ltd
7018 1038 7162 AT&T
3908 922 625 Supernet, Inc.
1 874 8636 BBN Planet
702 799 1934 UUNET Technologies, Inc.
7046 795 988 UUNET Technologies, Inc.
1239 725 3262 Sprint
3967 601 473 Exodus Communication
209 540 2248 Qwest
2914 493 2244 Verio, Inc.
690 483 94 Merit Network
4293 466 113 Cable & Wireless USA
3301 439 919 TeliaNet Sweden
703 426 376 UUNET Technologies, Inc.
2764 421 377 connect.com.au pty ltd
3561 408 2326 Cable & Wireless USA
2548 371 973 Business Internet, Inc.
3549 370 835 Global Crossing
2149 367 263 Performance Systems, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
22130 UNALLOCATED 4.18.195.0/24 3561 Cable & Wireless USA
22242 UNALLOCATED 12.14.215.0/24 7222 Southwestern Bell In
65534 PRIVATE 62.23.176.0/24 6675 Colt Telecommunicati
65534 PRIVATE 62.23.177.0/24 6675 Colt Telecommunicati
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 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
578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun
22091 UNALLOCATED 65.113.20.0/24 209 Qwest
22195 UNALLOCATED 65.116.137.0/24 209 Qwest
22299 UNALLOCATED 65.161.22.0/24 701 UUNET Technologies,
22299 UNALLOCATED 65.161.23.0/24 701 UUNET Technologies,
22326 UNALLOCATED 65.170.47.0/24 1239 Sprint
22313 UNALLOCATED 66.96.52.0/22 7927 Global One Venezuela
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
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
65460 PRIVATE 192.231.11.0/24 7018 AT&T
22313 UNALLOCATED 196.27.8.0/22 7927 Global One Venezuela
22284 UNALLOCATED 198.183.146.0/23 701 UUNET Technologies,
22301 UNALLOCATED 199.171.142.0/24 6517 Yipes Communications
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
65534 PRIVATE 200.40.20.0/24 6057 Av. Fernandez Crespo
65534 PRIVATE 200.40.23.0/24 6057 Av. Fernandez Crespo
22313 UNALLOCATED 200.47.150.0/24 7927 Global One Venezuela
22303 UNALLOCATED 204.62.219.0/24 2914 Verio, Inc.
22303 UNALLOCATED 204.62.220.0/24 2914 Verio, Inc.
22303 UNALLOCATED 204.62.221.0/24 2914 Verio, Inc.
22303 UNALLOCATED 204.62.222.0/24 2914 Verio, Inc.
22284 UNALLOCATED 205.173.0.0/22 701 UUNET Technologies,
22284 UNALLOCATED 205.173.7.0/24 701 UUNET Technologies,
22130 UNALLOCATED 205.180.228.0/24 3561 Cable & Wireless USA
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.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
22257 UNALLOCATED 207.176.8.0/21 3491 CAIS Internet
6971 UNALLOCATED 207.189.143.0/24 2516 Kokusai Denshin Denw
22179 UNALLOCATED 207.190.35.0/24 3549 Global Crossing
22326 UNALLOCATED 208.44.54.0/24 1239 Sprint
22091 UNALLOCATED 208.46.178.0/24 209 Qwest
22130 UNALLOCATED 208.131.122.0/24 3561 Cable & Wireless USA
22195 UNALLOCATED 208.252.244.0/24 209 Qwest
22259 UNALLOCATED 208.254.175.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
21040 UNALLOCATED 213.196.128.0/18 702 UUNET Technologies,
22313 UNALLOCATED 216.72.155.0/24 7927 Global One Venezuela
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/21 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 216.174.202.0/23 2914 Verio, Inc.
6971 UNALLOCATED 216.174.204.0/22 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 216.174.240.0/22 2914 Verio, Inc.
22326 UNALLOCATED 216.207.88.0/24 1239 Sprint
22326 UNALLOCATED 216.207.89.0/24 1239 Sprint
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
82.105.0.0/16 3269 TELECOM ITALIA
82.105.128.0/17 3269 TELECOM ITALIA
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
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 /9:7 /10:6 /11:12 /12:33
/13:85 /14:226 /15:381 /16:6972 /17:1234 /18:2343
/19:6927 /20:5778 /21:4725 /22:6972 /23:8884 /24:60424
/25:336 /26:358 /27:266 /28:264 /29:158 /30:194
/31:1 /32:82
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1457 1606 Telstra Pty Ltd
701 1394 2217 UUNET Technologies, Inc.
3908 772 922 Supernet, Inc.
7046 623 795 UUNET Technologies, Inc.
7018 541 1038 AT&T
702 529 799 UUNET Technologies, Inc.
690 479 483 Merit Network
4293 449 466 Cable & Wireless USA
3967 421 601 Exodus Communication
1 417 874 BBN Planet
1239 405 725 Sprint
209 376 540 Qwest
2764 374 421 connect.com.au pty ltd
703 355 426 UUNET Technologies, Inc.
6995 307 321 Bell Atlantic Internet Soluti
4323 299 357 Time Warner Communications, I
11371 292 305 Rhythms NetConnections
705 290 333 UUNET Technologies, Inc.
4151 288 330 USDA
5106 284 301 Ameritech Advanced Data Servi
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 9:1 12:405 13:10 15:1 17:6
20:1 24:782 25:1 26:1 32:72 38:10
43:3 44:2 53:2 55:1 57:15 61:70
62:135 63:1907 64:1343 65:699 66:473 67:2
80:45 128:50 129:119 130:19 131:42 132:11
133:1 134:139 135:10 136:21 137:93 138:203
139:46 140:194 141:198 142:56 143:39 144:140
145:12 146:142 147:130 148:231 149:89 150:37
151:208 152:379 153:33 154:19 155:76 156:89
157:119 158:72 159:66 160:46 161:59 162:63
163:145 164:93 165:96 166:186 167:142 168:116
169:37 170:283 171:2 192:5409 193:1955 194:2008
195:836 196:415 198:3650 199:3256 200:2522 201:1
202:2774 203:4615 204:3305 205:2223 206:2838 207:2556
208:3085 209:3142 210:550 211:133 212:836 213:494
214:8 215:13 216:3065 217:389 218:2
End of report
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