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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 15 Sep, 2001
Analysis Summary
----------------
BGP routing table entries examined: 38408
Origin ASes present in the Internet Routing Table: 6392
Origin ASes announcing only one prefix: 3124
Transit ASes present in the Internet Routing Table: 1008
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 27
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: 935711746
Equivalent to 55 /8s, 197 /16s and 212 /24s
Percentage of available address space announced: 25.2
Percentage of allocated address space announced: 48.6
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 21490
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 2609
Prefixes being announced from the APNIC address blocks: 612
APNIC Region origin ASes present in the Internet Routing Table: 401
APNIC Region origin ASes announcing only one prefix: 182
APNIC Region transit ASes present in the Internet Routing Table: 96
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 11
Number of APNIC addresses announced to Internet: 14099196
Equivalent to 0 /8s, 215 /16s and 34 /24s
Percentage of available APNIC address space announced: 13.9
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: 26265
Prefixes being announced from the ARIN address blocks: 11437
ARIN Region origin ASes present in the Internet Routing Table: 4292
ARIN Region origin ASes announcing only one prefix: 2012
ARIN Region transit ASes present in the Internet Routing Table: 489
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 71383030
Equivalent to 4 /8s, 65 /16s and 55 /24s
Percentage of available ARIN address space announced: 26.6
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: 9532
Prefixes being announced from the RIPE address blocks: 6179
RIPE Region origin ASes present in the Internet Routing Table: 1710
RIPE Region origin ASes announcing only one prefix: 930
RIPE Region transit ASes present in the Internet Routing Table: 423
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 40463639
Equivalent to 2 /8s, 105 /16s and 109 /24s
Percentage of available RIPE address space announced: 26.8
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 244 875 Telstra Pty Ltd
7539 174 193 TANet2, sponsored by NSC, TAI
2907 144 1689 SINET Japan
4134 94 1022 Data Communications Bureau
703 76 188 UUNET Technologies, Inc.
4780 47 92 Digital United Inc.
4814 47 55 China Telecom (Group)
4812 45 238 China Telecom (Group)
4713 44 485 NTT Communications Corporatio
2764 40 258 connect.com.au pty ltd
4766 36 341 Korea Internet Exchange for "
2497 35 497 IIJ
7474 32 210 Optus Communications Pty Ltd
7713 32 32 PT TELEKOMUNIKASI INDONESIA
7535 29 42 TISNET Technology Inc.
2500 28 257 WIDE Project
7570 28 225 Australian Academic and Rease
2513 27 274 Japan Science and Technology
1659 26 738 Taiwan Academic Network (TANe
9502 25 2 Hong Kong Headquarters
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 574 1400 UUNET Technologies, Inc.
3301 415 584 TeliaNet Sweden
1257 258 428 SWIPnet Swedish IP Network
680 234 2260 DFN-IP service G-WiN
786 180 1838 The JANET IP Service
5515 179 553 Sonera Finland Autonomous Sys
3215 162 363 France Telecom / &Equant
719 131 160 LANLINK autonomous system
3320 125 959 Deutsche Telekom AG
1270 118 514 UUNET Germany
517 103 249 KPNQwest Germany GmbH
3303 101 448 Swisscom Ltd
8708 100 9 Romania Data Systems S.A.
15870 96 9 Global Center Frankfurt
1267 93 1956 Infostrada S.p.A.
2856 85 371 BTnet UK Regional network
1290 84 330 PSINet UK Ltd.
1901 84 114 KPNQwest Austria
137 80 637 GARR external peering
559 68 490 SWITCH, Swiss Academic and Re
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 972 6014 UUNET Technologies, Inc.
7046 546 960 UUNET Technologies, Inc.
3908 491 377 Supernet, Inc.
690 451 92 Merit Network
7018 420 6607 AT&T
1 377 7546 BBN Planet
6995 315 177 Bell Atlantic Internet Soluti
1239 275 1613 Sprint
209 243 2020 Qwest
5106 210 151 Ameritech Advanced Data Servi
3967 191 154 Exodus Communication
7843 176 344 Adelphia Corp.
5673 172 4561 Pacific Bell Internet Service
3561 162 747 Cable & Wireless USA
7029 159 140 Alltel Information Services,
2386 158 287 AT&T Data Communications Serv
8151 157 312 UniNet S.A. de C.V.
2149 151 233 Performance Systems, Inc.
1580 146 121 HQ, 5th Signal Command
8112 146 107 Bell Atlantic Internet Soluti
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 972 6014 UUNET Technologies, Inc.
702 574 1400 UUNET Technologies, Inc.
7046 546 960 UUNET Technologies, Inc.
3908 491 377 Supernet, Inc.
690 451 92 Merit Network
7018 420 6607 AT&T
3301 415 584 TeliaNet Sweden
1 377 7546 BBN Planet
6995 315 177 Bell Atlantic Internet Soluti
1239 275 1613 Sprint
1257 258 428 SWIPnet Swedish IP Network
1221 244 875 Telstra Pty Ltd
209 243 2020 Qwest
680 234 2260 DFN-IP service G-WiN
5106 210 151 Ameritech Advanced Data Servi
3967 191 154 Exodus Communication
786 180 1838 The JANET IP Service
5515 179 553 Sonera Finland Autonomous Sys
7843 176 344 Adelphia Corp.
7539 174 193 TANet2, sponsored by NSC, TAI
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
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
65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services
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
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
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:5 /11:7 /12:27
/13:64 /14:136 /15:235 /16:5767 /17:482 /18:774
/19:2056 /20:2299 /21:1426 /22:2366 /23:3272 /24:19014
/25:70 /26:81 /27:66 /28:61 /29:38 /30:82
/31:0 /32:58
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 528 972 UUNET Technologies, Inc.
690 450 451 Merit Network
7046 447 546 UUNET Technologies, Inc.
702 394 574 UUNET Technologies, Inc.
3908 391 491 Supernet, Inc.
6995 304 315 Bell Atlantic Internet Soluti
3301 243 415 TeliaNet Sweden
5106 200 210 Ameritech Advanced Data Servi
7539 166 174 TANet2, sponsored by NSC, TAI
7029 154 159 Alltel Information Services,
209 144 243 Qwest
8112 142 146 Bell Atlantic Internet Soluti
1580 136 146 HQ, 5th Signal Command
11371 136 142 Rhythms NetConnections
8151 131 157 UniNet S.A. de C.V.
1257 130 258 SWIPnet Swedish IP Network
2386 129 158 AT&T Data Communications Serv
7018 126 420 AT&T
1221 121 244 Telstra Pty Ltd
3967 120 191 Exodus Communication
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 9:1 12:402 13:10 15:1 17:6
20:1 24:759 25:1 26:1 32:72 38:9
43:3 44:2 53:2 55:1 57:15 61:68
62:133 63:1907 64:1307 65:700 66:472 67:2
80:47 128:50 129:120 130:19 131:42 132:11
133:1 134:139 135:10 136:19 137:93 138:202
139:45 140:166 141:198 142:56 143:39 144:141
145:12 146:141 147:130 148:231 149:89 150:36
151:208 152:366 153:33 154:18 155:82 156:89
157:120 158:73 159:66 160:47 161:51 162:63
163:144 164:94 165:98 166:186 167:143 168:117
169:36 170:285 171:2 192:5373 193:1954 194:1448
End of report
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