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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 29 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106818
Origin ASes present in the Internet Routing Table: 11554
Origin ASes announcing only one prefix: 4240
Transit ASes present in the Internet Routing Table: 1506
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 48
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: 1214276741
Equivalent to 72 /8s, 96 /16s and 100 /24s
Percentage of available address space announced: 32.8
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72808
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16001
Prefixes being announced from the APNIC address blocks: 14386
APNIC Region origin ASes present in the Internet Routing Table: 1357
APNIC Region origin ASes announcing only one prefix: 455
APNIC Region transit ASes present in the Internet Routing Table: 227
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 77451720
Equivalent to 4 /8s, 157 /16s and 209 /24s
Percentage of available APNIC address space announced: 76.1
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: 73574
Prefixes being announced from the ARIN address blocks: 53171
ARIN Region origin ASes present in the Internet Routing Table: 6955
ARIN Region origin ASes announcing only one prefix: 2070
ARIN Region transit ASes present in the Internet Routing Table: 697
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 207568914
Equivalent to 12 /8s, 95 /16s and 64 /24s
Percentage of available ARIN address space announced: 77.3
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: 17237
Prefixes being announced from the RIPE address blocks: 13634
RIPE Region origin ASes present in the Internet Routing Table: 3250
RIPE Region origin ASes announcing only one prefix: 1715
RIPE Region transit ASes present in the Internet Routing Table: 583
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106201228
Equivalent to 6 /8s, 84 /16s and 128 /24s
Percentage of available RIPE address space announced: 70.3
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 1315 Telstra Pty Ltd
2764 431 378 connect.com.au pty ltd
703 426 368 UUNET Technologies, Inc.
2907 366 1816 SINET Japan
4755 293 163 Videsh Sanchar Nigam Ltd. Aut
4134 243 1761 Data Communications Bureau
7474 235 289 Optus Communications Pty Ltd
7539 197 164 TANet2, sponsored by NSC, TAI
4740 191 24 OzEmail ISP
4766 179 1320 Korea Internet Exchange for "
7545 146 25 TPG Internet Pty Ltd
9443 144 39 Primus Telecommunications
4786 130 17 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
9583 118 61 Satyam Infoway Ltd.,
4713 116 870 NTT Communications Corporatio
17561 116 167 Internet service provision to
7586 109 17 Paradox Digital Pty Ltd
4812 108 277 China Telecom (Group)
7657 107 22 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 706 1746 UUNET Technologies, Inc.
3301 430 917 TeliaNet Sweden
1257 277 521 SWIPnet Swedish IP Network
680 232 2261 DFN-IP service G-WiN
3215 220 511 France Telecom / &Equant
1270 216 829 UUNET Germany
5515 192 687 Sonera Finland Autonomous Sys
786 184 1890 The JANET IP Service
3320 183 1940 Deutsche Telekom AG
15870 183 11 Global Center Frankfurt
719 180 291 LANLINK autonomous system
8708 152 19 Romania Data Systems S.A.
15878 143 12 Global Center Paris
5400 138 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 125 774 BTnet UK Regional network
5549 124 64 Nextra Deutschland GmbH + Co.
517 116 269 KPNQwest Germany GmbH
1267 103 1989 Infostrada S.p.A.
3269 101 781 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2256 8220 UUNET Technologies, Inc.
7018 1019 7112 AT&T
3908 916 666 Supernet, Inc.
1 872 8660 BBN Planet
2551 852 659 ICG NetAhead, Inc
7046 781 1025 UUNET Technologies, Inc.
1239 715 3257 Sprint
3967 601 487 Exodus Communication
209 509 2135 Qwest
690 507 79 Merit Network
2914 502 2307 Verio, Inc.
4293 479 114 Cable & Wireless USA
3561 422 2381 Cable & Wireless USA
2548 384 997 Business Internet, Inc.
2149 376 311 Performance Systems, Inc.
577 365 634 Bell Advanced Communications
3549 365 833 Global Crossing
18994 352 10 Global Crossing
4323 344 336 Time Warner Communications, I
15290 344 338 AT&T Canada IES
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2256 8220 UUNET Technologies, Inc.
1221 1592 1315 Telstra Pty Ltd
7018 1019 7112 AT&T
3908 916 666 Supernet, Inc.
1 872 8660 BBN Planet
2551 852 659 ICG NetAhead, Inc
7046 781 1025 UUNET Technologies, Inc.
1239 715 3257 Sprint
702 706 1746 UUNET Technologies, Inc.
3967 601 487 Exodus Communication
209 509 2135 Qwest
690 507 79 Merit Network
2914 502 2307 Verio, Inc.
4293 479 114 Cable & Wireless USA
2764 431 378 connect.com.au pty ltd
3301 430 917 TeliaNet Sweden
703 426 368 UUNET Technologies, Inc.
3561 422 2381 Cable & Wireless USA
2548 384 997 Business Internet, Inc.
2149 376 311 Performance Systems, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
22065 UNALLOCATED 64.172.224.0/24 5677 Pacific Bell Interne
22065 UNALLOCATED 64.172.225.0/24 5677 Pacific Bell Interne
578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun
22093 UNALLOCATED 66.73.24.0/24 5104 Ameritech Advanced D
22093 UNALLOCATED 66.73.25.0/24 5104 Ameritech Advanced D
64512 PRIVATE 80.66.96.0/20 3209 Arcor IP-Network
22093 UNALLOCATED 139.137.0.0/16 5104 Ameritech Advanced D
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
22093 UNALLOCATED 192.35.79.0/24 5104 Ameritech Advanced D
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 192.108.199.0/24 1755 Ebone Transit Core
65460 PRIVATE 192.231.11.0/24 7018 AT&T
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
64550 PRIVATE 203.161.39.0/24 17802 Internet AccessFor Q
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,
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 216.174.202.0/23 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.
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
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
172.32.1.0/25 1221 Telstra 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 /8:17 /9:5 /10:6 /11:12 /12:32
/13:84 /14:226 /15:380 /16:6950 /17:1227 /18:2316
/19:6900 /20:5674 /21:4653 /22:6894 /23:8754 /24:60928
/25:336 /26:354 /27:288 /28:293 /29:193 /30:215
/31:0 /32:81
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1442 1592 Telstra Pty Ltd
701 1418 2256 UUNET Technologies, Inc.
3908 759 916 Supernet, Inc.
2551 749 852 ICG NetAhead, Inc
7046 604 781 UUNET Technologies, Inc.
7018 522 1019 AT&T
690 504 507 Merit Network
4293 462 479 Cable & Wireless USA
702 455 706 UUNET Technologies, Inc.
3967 421 601 Exodus Communication
1 408 872 BBN Planet
1239 396 715 Sprint
2764 384 431 connect.com.au pty ltd
209 362 509 Qwest
703 356 426 UUNET Technologies, Inc.
18994 350 352 Global Crossing
11371 309 322 Rhythms NetConnections
4323 290 344 Time Warner Communications, I
4151 288 330 USDA
2548 276 384 Business Internet, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 9:1 12:405 13:10 15:1 17:6
20:1 24:711 26:1 32:33 38:8 43:7
44:2 53:2 55:1 57:15 61:69 62:137
63:1905 64:1349 65:631 66:434 80:38 128:44
129:116 130:17 131:44 132:12 133:1 134:138
135:9 136:21 137:142 138:199 139:46 140:136
141:161 142:63 143:40 144:143 145:11 146:145
147:130 148:176 149:89 150:37 151:209 152:400
153:31 154:23 155:77 156:84 157:121 158:72
159:65 160:46 161:58 162:67 163:158 164:107
165:95 166:185 167:144 168:122 169:36 170:283
171:2 192:5445 193:1930 194:2046 195:824 196:416
198:3702 199:3396 200:2439 201:1 202:2682 203:4603
204:3472 205:2359 206:3053 207:2767 208:3072 209:3251
210:525 211:121 212:826 213:466 214:8 215:13
216:3048 217:387 218:2
End of report
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