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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 19 Jul, 2001
Analysis Summary
----------------
BGP routing table entries examined: 104702
Origin ASes present in the Internet Routing Table: 11314
Origin ASes announcing only one prefix: 4149
Transit ASes present in the Internet Routing Table: 1509
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 15
Illegal AS announcements present in the Routing Table: 16
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: 1243381161
Equivalent to 74 /8s, 28 /16s and 125 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 71135
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15563
Prefixes being announced from the APNIC address blocks: 13997
APNIC Region origin ASes present in the Internet Routing Table: 1328
APNIC Region origin ASes announcing only one prefix: 464
APNIC Region transit ASes present in the Internet Routing Table: 224
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 73914662
Equivalent to 4 /8s, 103 /16s and 217 /24s
Percentage of available APNIC address space announced: 72.7
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: 71799
Prefixes being announced from the ARIN address blocks: 51739
ARIN Region origin ASes present in the Internet Routing Table: 6804
ARIN Region origin ASes announcing only one prefix: 2005
ARIN Region transit ASes present in the Internet Routing Table: 709
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 201338467
Equivalent to 12 /8s, 0 /16s and 46 /24s
Percentage of available ARIN address space announced: 80.0
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, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17337
Prefixes being announced from the RIPE address blocks: 13428
RIPE Region origin ASes present in the Internet Routing Table: 3190
RIPE Region origin ASes announcing only one prefix: 1680
RIPE Region transit ASes present in the Internet Routing Table: 577
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 101553900
Equivalent to 6 /8s, 13 /16s and 150 /24s
Percentage of available RIPE address space announced: 67.3
RIPE AS Blocks 1877 - 1901, 2042, 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 1676 1347 Telstra
2764 433 345 connect.com.au pty ltd
703 401 383 UUNET Technologies, Inc.
2907 368 1784 SINET Japan
4755 300 167 VSNL India
7474 242 292 Optus Communications
4134 231 1609 Data Communications Bureau
7539 209 175 TANet2, sponsored by NSC, TAI
4766 176 1336 KORnet Powered BY Korea Telec
7545 145 21 TPG Internet Pty Ltd
9443 138 39 INTERNETPRIMUS-AS-A
4786 130 17 NetConnect Communications Pty
4763 118 69 Telstra New Zealand
17561 115 151 Internet service provision to
7657 113 22 The Internet Group Limited
7586 112 17 Paradox Digital Pty. Ltd
4713 109 878 NTT-OCNET
4740 109 15 Ozemail
9583 108 60 Satyam Infoway Ltd.,
4812 106 259 Shanghai Telecom Company
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 681 1847 UUNET Technologies, Inc.
3301 430 918 TeliaNet Sweden
15870 419 12 Global Center Frankfurt
1257 280 504 Swipnet AB
1270 245 868 UUNET Germany
680 232 2069 Deutschef Forschurgsnetz
3215 219 495 RAIN
15878 206 8 Global Center Paris
719 187 291 LANLINK
786 184 1890 JANET IP Service
5515 174 654 Sonera Finland
3320 171 1410 Deutsche Telekom AG
8708 150 15 Romania Data System
5400 139 66 Concert Internet Plus Europea
3303 129 575 Swisscom
517 124 272 Xlink
2856 123 776 BTnet UK Regional network
5549 117 66 Seicom Computer Gmb
8503 108 3 PCNET - PCNET DATA Network
1267 107 1989 IUnet S.p.A
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2310 8326 UUNET Technologies, Inc.
7018 972 7036 AT&T
1 905 8714 BBN Planet
7046 759 1057 UUNET Technologies, Inc.
1239 684 3327 Sprint ICM-Inria
690 518 92 Merit Network
2914 518 2317 Verio, Inc.
4293 491 99 Cable & Wireless USA
209 484 1874 Qwest
3561 433 2450 Cable & Wireless USA
3908 419 583 Supernet, Inc.
2149 416 362 Performance Systems, Inc.
2548 415 1012 Digital Express Group, Inc.
18994 400 10 Global Crossing
3549 350 817 Global Crossing
11371 335 100 Rhythms NetConnections
4323 334 298 Time Warner Communications, I
3967 331 450 Exodus Communication
15290 322 340 AT&T Canada IES
6347 316 361 SAVVIS Communications Corpora
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2310 8326 UUNET Technologies, Inc.
1221 1676 1347 Telstra
7018 972 7036 AT&T
1 905 8714 BBN Planet
7046 759 1057 UUNET Technologies, Inc.
1239 684 3327 Sprint ICM-Inria
702 681 1847 UUNET Technologies, Inc.
690 518 92 Merit Network
2914 518 2317 Verio, Inc.
4293 491 99 Cable & Wireless USA
209 484 1874 Qwest
2764 433 345 connect.com.au pty ltd
3561 433 2450 Cable & Wireless USA
3301 430 918 TeliaNet Sweden
3908 419 583 Supernet, Inc.
15870 419 12 Global Center Frankfurt
2149 416 362 Performance Systems, Inc.
2548 415 1012 Digital Express Group, Inc.
703 401 383 UUNET Technologies, Inc.
18994 400 10 Global Crossing
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
578 UNALLOCATED 64.230.242.0/28 577 Bell Canada
578 UNALLOCATED 64.230.242.16/28 577 Bell Canada
65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT
1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT
19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu
65460 PRIVATE 192.231.11.0/24 7018 AT&T
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET
4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net
19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
99.0.0.0/8 9638 National Agricultural Coopera
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
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 US DOD NIC Unregistered
172.32.1.0/25 1221 Telstra
172.122.0.0/16 701 UUNET Technologies, Inc.
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 /8:20 /9:5 /10:6 /11:9 /12:33
/13:80 /14:215 /15:357 /16:6914 /17:1188 /18:2238
/19:6752 /20:5420 /21:4535 /22:6817 /23:8646 /24:59176
/25:289 /26:362 /27:434 /28:444 /29:358 /30:332
/31:1 /32:71
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1521 1676 Telstra
701 1445 2310 UUNET Technologies, Inc.
7046 593 759 UUNET Technologies, Inc.
690 514 518 Merit Network
7018 490 972 AT&T
4293 475 491 Cable & Wireless USA
702 431 681 UUNET Technologies, Inc.
1 426 905 BBN Planet
15870 415 419 Global Center Frankfurt
18994 398 400 Global Crossing
2764 389 433 connect.com.au pty ltd
1239 367 684 Sprint ICM-Inria
209 362 484 Qwest
703 331 401 UUNET Technologies, Inc.
11371 322 335 Rhythms NetConnections
3908 318 419 Supernet, Inc.
18993 308 312 Global Crossing
2548 304 415 Digital Express Group, Inc.
4323 287 334 Time Warner Communications, I
8013 277 307 PSINet Ltd. Canada
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:579 13:13 15:11
17:13 20:7 24:849 26:1 32:42 38:9
40:2 43:4 44:10 45:1 47:40 52:2
53:4 55:1 56:5 57:15 61:127 62:196
63:2513 64:2734 65:1009 66:758 80:46 128:61
129:194 130:54 131:66 132:41 133:1 134:234
135:12 136:36 137:178 138:233 139:86 140:257
141:224 142:122 143:98 144:203 145:32 146:199
147:180 148:238 149:124 150:63 151:261 152:979
153:40 154:25 155:144 156:92 157:155 158:114
159:82 160:85 161:146 162:160 163:234 164:169
165:249 166:260 167:164 168:205 169:54 170:450
171:20 172:1 192:32 193:2607 194:2759 195:1064
196:3 198:6 199:3876 200:2786 202:3771 203:5770
204:4374 205:2906 206:4134 207:3630 208:5206 209:4104
210:770 211:297 212:1124 213:690 216:4755 217:435
218:3
End of report
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