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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04 Jun, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106987
Origin ASes present in the Internet Routing Table: 10991
Origin ASes announcing only one prefix: 3999
Transit ASes present in the Internet Routing Table: 1458
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: 22
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 17
Number of addresses announced to Internet: 1233005239
Equivalent to 73 /8s, 126 /16s and 42 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 51.5
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15415
Prefixes being announced from the APNIC address blocks: 13921
APNIC Region origin ASes present in the Internet Routing Table: 1265
APNIC Region origin ASes announcing only one prefix: 449
APNIC Region transit ASes present in the Internet Routing Table: 213
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 69649029
Equivalent to 4 /8s, 38 /16s and 194 /24s
Percentage of available APNIC address space announced: 68.5
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: 74678
Prefixes being announced from the ARIN address blocks: 53110
ARIN Region origin ASes present in the Internet Routing Table: 6686
ARIN Region origin ASes announcing only one prefix: 1977
ARIN Region transit ASes present in the Internet Routing Table: 693
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 12
Number of ARIN addresses announced to Internet: 198757414
Equivalent to 11 /8s, 216 /16s and 204 /24s
Percentage of available ARIN address space announced: 79.0
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, 64/7, 66/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 16890
Prefixes being announced from the RIPE address blocks: 13002
RIPE Region origin ASes present in the Internet Routing Table: 3048
RIPE Region origin ASes announcing only one prefix: 1573
RIPE Region transit ASes present in the Internet Routing Table: 552
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 99067658
Equivalent to 5 /8s, 231 /16s and 167 /24s
Percentage of available RIPE address space announced: 65.6
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 1723 1329 Telstra
2764 431 328 connect.com.au pty ltd
2907 367 1783 SINET Japan
703 351 393 UUNET Technologies, Inc.
4755 339 221 VSNL India
7539 222 195 TANet2, sponsored by NSC, TAI
4134 201 1421 Data Communications Bureau
7474 194 171 Optus Communications
4766 173 1258 KORnet Powered BY Korea Telec
4740 159 21 Ozemail
7657 157 25 The Internet Group Limited
1237 152 140 System Engineering Research I
17561 151 137 Internet service provision to
7545 148 21 TPG Internet Pty Ltd
9443 132 47 INTERNETPRIMUS-AS-A
4786 127 15 NetConnect Communications Pty
7617 117 91 One.Net Pty Ltd
4763 115 85 Telstra New Zealand
7586 115 17 Paradox Digital Pty. Ltd
9583 111 62 Satyam Infoway Ltd.,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 652 1755 UUNET Technologies, Inc.
15870 438 7 Global Center Frankfurt
3301 402 915 TeliaNet Sweden
1257 283 504 Swipnet AB
1270 265 864 UUNET Germany
680 226 2007 Deutschef Forschurgsnetz
15878 219 8 Global Center Paris
3215 215 479 RAIN
719 186 291 LANLINK
786 185 1904 JANET IP Service
5515 176 654 Sonera Finland
3320 163 1410 Deutsche Telekom AG
5400 136 67 Concert Internet Plus Europea
8708 132 14 Romania Data System
517 129 273 Xlink
3303 129 592 Swisscom
2856 116 775 BTnet UK Regional network
1267 99 1954 IUnet S.p.A
1290 97 406 PSINet UK Ltd.
3269 90 568 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2418 7508 UUNET Technologies, Inc.
7018 1701 6993 AT&T
705 1478 129 UUNET Technologies, Inc.
1 921 8857 BBN Planet
7046 793 1129 UUNET Technologies, Inc.
3491 676 392 CAIS Internet
1239 661 3255 Sprint ICM-Inria
2914 562 2333 Verio, Inc.
3561 544 2434 Cable & Wireless USA
4293 497 101 Cable & Wireless USA
690 493 83 Merit Network
18994 472 11 Global Crossing
209 462 1829 Qwest
2149 410 488 Performance Systems, Inc.
2548 406 997 Digital Express Group, Inc.
3908 395 533 Supernet, Inc.
3549 341 1062 Global Crossing
5106 336 132 Ameritech Advanced Data Servi
11371 335 100 Rhythms NetConnections
3967 334 454 Exodus Communication
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2418 7508 UUNET Technologies, Inc.
1221 1723 1329 Telstra
7018 1701 6993 AT&T
705 1478 129 UUNET Technologies, Inc.
1 921 8857 BBN Planet
7046 793 1129 UUNET Technologies, Inc.
3491 676 392 CAIS Internet
1239 661 3255 Sprint ICM-Inria
702 652 1755 UUNET Technologies, Inc.
2914 562 2333 Verio, Inc.
3561 544 2434 Cable & Wireless USA
4293 497 101 Cable & Wireless USA
690 493 83 Merit Network
18994 472 11 Global Crossing
209 462 1829 Qwest
15870 438 7 Global Center Frankfurt
2764 431 328 connect.com.au pty ltd
2149 410 488 Performance Systems, Inc.
2548 406 997 Digital Express Group, Inc.
3301 402 915 TeliaNet Sweden
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
60002 RESERVED 64.76.148.0/24 19583 IMPSAT CHILE S.A.
578 UNALLOCATED 64.230.243.96/27 577 Bell Canada
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
1474 UNALLOCATED 150.226.0.0/16 721 DLA Systems Automati
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
1474 UNALLOCATED 192.108.235.0/24 721 DLA Systems Automati
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
65000 PRIVATE 198.208.54.0/24 7046 UUNET Technologies,
65000 PRIVATE 198.208.187.0/24 7046 UUNET Technologies,
9700 UNALLOCATED 202.30.50.0/23 3786 DACOM Corporation
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
9700 UNALLOCATED 203.255.208.0/24 3786 DACOM Corporation
9700 UNALLOCATED 203.255.209.0/24 3786 DACOM Corporation
9700 UNALLOCATED 203.255.210.0/24 3786 DACOM Corporation
9700 UNALLOCATED 203.255.211.0/24 3786 DACOM Corporation
5555 UNALLOCATED 205.110.64.0/24 721 DLA Systems Automati
5555 UNALLOCATED 205.110.68.0/22 721 DLA Systems Automati
5555 UNALLOCATED 205.110.72.0/21 721 DLA Systems Automati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
128.65.0.0/16 3463 ACES Research Inc
128.199.0.0/16 5519 GX Networks (former
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
139.157.0.0/16 5515 Sonera Finland
144.7.0.0/16 701 UUNET Technologies, Inc.
146.104.0.0/16 1136 SURFnet BV
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
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 /12:32
/13:76 /14:208 /15:346 /16:6896 /17:1169 /18:2153
/19:6688 /20:5199 /21:4522 /22:6819 /23:8761 /24:61645
/25:269 /26:440 /27:477 /28:487 /29:381 /30:321
/31:1 /32:57
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:3 12:714 13:10 15:1 17:6
24:672 26:1 32:121 38:572 44:3 47:1
53:2 55:1 57:13 61:31 62:124 63:1951
64:1659 65:1042 66:336 80:2 128:38 129:165
130:23 131:39 132:9 133:1 134:170 135:12
136:16 137:122 138:246 139:44 140:139 141:158
142:68 143:41 144:135 145:9 146:141 147:136
148:95 149:121 150:36 151:299 152:574 153:32
154:22 155:79 156:52 157:110 158:183 159:74
160:27 161:53 162:68 163:130 164:96 165:129
166:203 167:140 168:96 169:35 170:259 171:2
192:5432 193:1854 194:2047 195:764 196:419 198:3632
199:3356 200:2077 201:1 202:2492 203:4836 204:3365
205:2279 206:2840 207:2943 208:3043 209:3217 210:551
211:112 212:824 213:401 214:9 215:11 216:2984
217:263
End of report
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