Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Oct 11 14:04:48 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 12 Oct, 2001
Analysis Summary
----------------
BGP routing table entries examined: 109453
Origin ASes present in the Internet Routing Table: 11858
Origin ASes announcing only one prefix: 4365
Transit ASes present in the Internet Routing Table: 1533
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: 73
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 16
Number of addresses announced to Internet: 1259798670
Equivalent to 75 /8s, 23 /16s and 0 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 74165
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16425
Prefixes being announced from the APNIC address blocks: 14952
APNIC Region origin ASes present in the Internet Routing Table: 1380
APNIC Region origin ASes announcing only one prefix: 463
APNIC Region transit ASes present in the Internet Routing Table: 234
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 81541744
Equivalent to 4 /8s, 220 /16s and 58 /24s
Percentage of available APNIC address space announced: 80.2
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: 75297
Prefixes being announced from the ARIN address blocks: 53590
ARIN Region origin ASes present in the Internet Routing Table: 7132
ARIN Region origin ASes announcing only one prefix: 2124
ARIN Region transit ASes present in the Internet Routing Table: 715
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 218175305
Equivalent to 13 /8s, 1 /16s and 23 /24s
Percentage of available ARIN address space announced: 81.3
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: 17729
Prefixes being announced from the RIPE address blocks: 14094
RIPE Region origin ASes present in the Internet Routing Table: 3356
RIPE Region origin ASes announcing only one prefix: 1778
RIPE Region transit ASes present in the Internet Routing Table: 585
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108572476
Equivalent to 6 /8s, 120 /16s and 175 /24s
Percentage of available RIPE address space announced: 71.9
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 1592 1312 Telstra Pty Ltd
2764 414 358 connect.com.au pty ltd
703 378 335 UUNET Technologies, Inc.
2907 370 1847 SINET Japan
4755 299 163 Videsh Sanchar Nigam Ltd. Aut
7474 243 274 Optus Communications Pty Ltd
4134 239 1862 Data Communications Bureau
4766 186 1466 Korea Internet Exchange for "
4740 177 38 OzEmail ISP
9443 159 54 Primus Telecommunications
2521 140 171 PSINet Japan
9768 131 363 Korea Telecom
17557 129 8 Pakistan Telecom
4786 123 14 NetConnect Communications Pty
4763 122 69 Telstra New Zealand
7545 121 23 TPG Internet Pty Ltd
4713 117 885 NTT Communications Corporatio
9583 116 60 Satyam Infoway Ltd.,
17561 116 167 Internet service provision to
7539 108 150 TANet2, sponsored by NSC, TAI
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 910 1952 UUNET Technologies, Inc.
3301 438 937 TeliaNet Sweden
1257 273 512 SWIPnet Swedish IP Network
680 241 2309 DFN-IP service G-WiN
3215 236 515 France Telecom / &Equant
5515 194 688 Sonera Finland Autonomous Sys
3320 189 1940 Deutsche Telekom AG
786 186 1890 The JANET IP Service
1103 161 4089 SURFnet BV
8708 161 17 Romania Data Systems S.A.
15870 142 10 Global Center Frankfurt
5400 139 64 Concert European Core Network
719 133 289 LANLINK autonomous system
3303 129 560 Swisscom Ltd
2856 128 776 BTnet UK Regional network
5549 127 67 Nextra Deutschland GmbH + Co.
1270 125 731 UUNET Germany
15878 122 9 Global Center Paris
517 112 252 KPNQwest Germany GmbH
3269 106 807 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2306 9166 UUNET Technologies, Inc.
3908 1150 1563 Supernet, Inc.
7018 1060 7264 AT&T
1 871 8587 BBN Planet
7046 811 1021 UUNET Technologies, Inc.
1239 738 3517 Sprint
3967 618 471 Exodus Communication
209 574 2253 Qwest
690 504 80 Merit Network
2914 489 2256 Verio, Inc.
4293 459 112 Cable & Wireless USA
705 415 67 UUNET Technologies, Inc.
3561 401 2356 Cable & Wireless USA
721 392 4407 DLA Systems Automation Center
2149 383 328 Performance Systems, Inc.
3549 383 843 Global Crossing
2548 356 999 Business Internet, Inc.
577 351 636 Bell Advanced Communications
5106 350 213 Ameritech Advanced Data Servi
4323 345 355 Time Warner Communications, I
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2306 9166 UUNET Technologies, Inc.
1221 1592 1312 Telstra Pty Ltd
3908 1150 1563 Supernet, Inc.
7018 1060 7264 AT&T
702 910 1952 UUNET Technologies, Inc.
1 871 8587 BBN Planet
7046 811 1021 UUNET Technologies, Inc.
1239 738 3517 Sprint
3967 618 471 Exodus Communication
209 574 2253 Qwest
690 504 80 Merit Network
2914 489 2256 Verio, Inc.
4293 459 112 Cable & Wireless USA
3301 438 937 TeliaNet Sweden
705 415 67 UUNET Technologies, Inc.
2764 414 358 connect.com.au pty ltd
3561 401 2356 Cable & Wireless USA
721 392 4407 DLA Systems Automation Center
2149 383 328 Performance Systems, Inc.
3549 383 843 Global Crossing
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
22153 UNALLOCATED 63.167.108.0/24 1239 Sprint
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 2914 Verio, Inc.
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 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.64.0/21 2914 Verio, Inc.
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
22153 UNALLOCATED 65.161.192.0/24 1239 Sprint
22153 UNALLOCATED 65.165.127.0/24 1239 Sprint
65000 PRIVATE 138.163.4.0/24 665 Department of Navy
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
22153 UNALLOCATED 168.215.234.0/23 1239 Sprint
22153 UNALLOCATED 168.215.235.0/24 1239 Sprint
22153 UNALLOCATED 168.215.236.0/23 1239 Sprint
22153 UNALLOCATED 168.215.237.0/24 1239 Sprint
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
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
5555 UNALLOCATED 192.156.41.0/24 721 DLA Systems Automati
22290 UNALLOCATED 198.140.161.0/24 2914 Verio, Inc.
22051 UNALLOCATED 198.172.125.0/24 2914 Verio, Inc.
5555 UNALLOCATED 199.10.190.0/24 721 DLA Systems Automati
22290 UNALLOCATED 199.217.152.0/24 2914 Verio, Inc.
22290 UNALLOCATED 199.217.187.0/24 2914 Verio, Inc.
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
22290 UNALLOCATED 205.159.194.0/24 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.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
22290 UNALLOCATED 207.150.139.0/24 2914 Verio, Inc.
22237 UNALLOCATED 208.253.66.0/24 701 UUNET Technologies,
22075 UNALLOCATED 209.39.134.0/24 2914 Verio, Inc.
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
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 216.174.200.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.174.202.0/24 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 216.174.240.0/21 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 2914 Verio, Inc.
6971 UNALLOCATED 216.210.144.0/20 2914 Verio, Inc.
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 2914 Verio, Inc.
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
128.65.0.0/16 3463 ACES Research Inc
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
201.11.128.0/24 2764 connect.com.au pty ltd
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 /10:8 /11:12 /12:33
/13:87 /14:227 /15:392 /16:7090 /17:1301 /18:2394
/19:7014 /20:5928 /21:4792 /22:7117 /23:9086 /24:62372
/25:323 /26:329 /27:261 /28:257 /29:155 /30:195
/31:1 /32:56
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1474 2306 UUNET Technologies, Inc.
1221 1446 1592 Telstra Pty Ltd
3908 874 1150 Supernet, Inc.
7046 633 811 UUNET Technologies, Inc.
702 620 910 UUNET Technologies, Inc.
7018 555 1060 AT&T
690 501 504 Merit Network
4293 445 459 Cable & Wireless USA
3967 438 618 Exodus Communication
1 422 871 BBN Planet
209 409 574 Qwest
1239 399 738 Sprint
2764 368 414 connect.com.au pty ltd
705 364 415 UUNET Technologies, Inc.
5106 329 350 Ameritech Advanced Data Servi
703 313 378 UUNET Technologies, Inc.
4151 301 343 USDA
11371 299 310 Rhythms NetConnections
4323 286 345 Time Warner Communications, I
11686 283 316 Education Networks of America
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 9:1 12:417 13:10 15:1 17:5
20:1 24:779 25:1 26:1 32:74 38:14
43:2 44:2 52:1 53:2 57:15 61:113
62:159 63:1937 64:1289 65:833 66:479 67:32
80:66 128:52 129:112 130:20 131:47 132:40
133:2 134:121 135:13 136:91 137:93 138:154
139:49 140:149 141:192 142:56 143:39 144:151
145:37 146:225 147:130 148:189 149:86 150:38
151:178 152:387 153:51 154:19 155:83 156:95
157:112 158:72 159:70 160:47 161:61 162:70
163:144 164:118 165:99 166:204 167:155 168:130
169:39 170:287 171:2 192:5618 193:1974 194:2074
195:846 196:467 198:4102 199:3889 200:2405 201:2
202:2827 203:4574 204:3366 205:2217 206:2873 207:2611
208:3158 209:3108 210:578 211:135 212:863 213:529
214:9 215:13 216:2999 217:384 218:2
End of report
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