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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 Jul, 2001
Analysis Summary
----------------
BGP routing table entries examined: 104543
Origin ASes present in the Internet Routing Table: 11276
Origin ASes announcing only one prefix: 4133
Transit ASes present in the Internet Routing Table: 1497
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: 15
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: 1242751153
Equivalent to 74 /8s, 18 /16s and 224 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 71030
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15471
Prefixes being announced from the APNIC address blocks: 13945
APNIC Region origin ASes present in the Internet Routing Table: 1317
APNIC Region origin ASes announcing only one prefix: 460
APNIC Region transit ASes present in the Internet Routing Table: 222
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 74025766
Equivalent to 4 /8s, 105 /16s and 139 /24s
Percentage of available APNIC address space announced: 72.8
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: 71735
Prefixes being announced from the ARIN address blocks: 51539
ARIN Region origin ASes present in the Internet Routing Table: 6800
ARIN Region origin ASes announcing only one prefix: 2008
ARIN Region transit ASes present in the Internet Routing Table: 703
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 13
Number of ARIN addresses announced to Internet: 202036860
Equivalent to 12 /8s, 10 /16s and 214 /24s
Percentage of available ARIN address space announced: 80.3
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, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17336
Prefixes being announced from the RIPE address blocks: 13399
RIPE Region origin ASes present in the Internet Routing Table: 3168
RIPE Region origin ASes announcing only one prefix: 1665
RIPE Region transit ASes present in the Internet Routing Table: 572
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 101316891
Equivalent to 6 /8s, 9 /16s and 249 /24s
Percentage of available RIPE address space announced: 67.1
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 1671 1330 Telstra
2764 430 345 connect.com.au pty ltd
703 401 383 UUNET Technologies, Inc.
2907 365 1782 SINET Japan
4755 294 167 VSNL India
7474 242 293 Optus Communications
4134 233 1609 Data Communications Bureau
7539 191 162 TANet2, sponsored by NSC, TAI
4766 176 1336 KORnet Powered BY Korea Telec
7545 146 21 TPG Internet Pty Ltd
9443 137 38 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
9583 113 60 Satyam Infoway Ltd.,
4740 109 15 Ozemail
4713 107 869 NTT-OCNET
4812 106 259 Shanghai Telecom Company
7586 106 17 Paradox Digital Pty. Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 674 1831 UUNET Technologies, Inc.
3301 430 918 TeliaNet Sweden
15870 425 12 Global Center Frankfurt
1257 279 504 Swipnet AB
1270 248 868 UUNET Germany
680 232 2069 Deutschef Forschurgsnetz
3215 220 495 RAIN
15878 208 8 Global Center Paris
719 188 291 LANLINK
786 183 1890 JANET IP Service
5515 174 654 Sonera Finland
3320 170 1410 Deutsche Telekom AG
8708 149 15 Romania Data System
5400 139 68 Concert Internet Plus Europea
3303 130 575 Swisscom
517 125 272 Xlink
2856 123 776 BTnet UK Regional network
5549 117 66 Seicom Computer Gmb
1267 106 1986 IUnet S.p.A
8503 105 3 PCNET - PCNET DATA Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2319 8327 UUNET Technologies, Inc.
7018 962 7035 AT&T
1 902 8714 BBN Planet
7046 751 1092 UUNET Technologies, Inc.
1239 678 3363 Sprint ICM-Inria
690 544 96 Merit Network
2914 519 2317 Verio, Inc.
4293 493 99 Cable & Wireless USA
209 490 1875 Qwest
3561 427 2434 Cable & Wireless USA
3908 417 583 Supernet, Inc.
2149 416 377 Performance Systems, Inc.
2548 415 1012 Digital Express Group, Inc.
18994 406 10 Global Crossing
3549 350 813 Global Crossing
11371 337 100 Rhythms NetConnections
4323 333 298 Time Warner Communications, I
3967 330 448 Exodus Communication
15290 323 342 AT&T Canada IES
6347 314 361 SAVVIS Communications Corpora
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2319 8327 UUNET Technologies, Inc.
1221 1671 1330 Telstra
7018 962 7035 AT&T
1 902 8714 BBN Planet
7046 751 1092 UUNET Technologies, Inc.
1239 678 3363 Sprint ICM-Inria
702 674 1831 UUNET Technologies, Inc.
690 544 96 Merit Network
2914 519 2317 Verio, Inc.
4293 493 99 Cable & Wireless USA
209 490 1875 Qwest
2764 430 345 connect.com.au pty ltd
3301 430 918 TeliaNet Sweden
3561 427 2434 Cable & Wireless USA
15870 425 12 Global Center Frankfurt
3908 417 583 Supernet, Inc.
2149 416 377 Performance Systems, Inc.
2548 415 1012 Digital Express Group, Inc.
18994 406 10 Global Crossing
703 401 383 UUNET Technologies, Inc.
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
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
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
4834 UNALLOCATED 202.74.192.0/20 4648 NZIX 2
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 /16:6908 /17:1190 /18:2233
/19:6742 /20:5400 /21:4515 /22:6832 /23:8663 /24:59018
/25:292 /26:365 /27:437 /28:447 /29:361 /30:339
/31:1 /32:75
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1516 1671 Telstra
701 1453 2319 UUNET Technologies, Inc.
7046 585 751 UUNET Technologies, Inc.
690 540 544 Merit Network
4293 477 493 Cable & Wireless USA
7018 474 962 AT&T
702 425 674 UUNET Technologies, Inc.
1 423 902 BBN Planet
15870 421 425 Global Center Frankfurt
18994 404 406 Global Crossing
2764 386 430 connect.com.au pty ltd
209 367 490 Qwest
1239 359 678 Sprint ICM-Inria
703 332 401 UUNET Technologies, Inc.
11371 324 337 Rhythms NetConnections
3908 315 417 Supernet, Inc.
18993 309 313 Global Crossing
2548 304 415 Digital Express Group, Inc.
4323 286 333 Time Warner Communications, I
6995 276 290 Bell Atlantic Internet Soluti
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:574 13:13 15:11
17:13 20:6 24:847 26:1 32:37 35:3
38:140 40:2 43:4 44:11 45:1 47:40
52:2 53:4 55:1 56:5 57:15 61:118
62:195 63:2519 64:2736 65:996 66:749 80:39
128:61 129:196 130:53 131:67 132:39 133:1
134:234 135:11 136:36 137:174 138:233 139:86
140:238 141:225 142:122 143:98 144:200 145:32
146:198 147:180 148:236 149:135 150:63 151:264
152:1064 153:40 154:25 155:146 156:91 157:157
158:109 159:84 160:85 161:144 162:161 163:215
164:168 165:248 166:258 167:153 168:200 169:54
170:439 171:20 172:1 192:32 193:2591 194:2742
195:1067 196:3 198:6 199:3843 200:2731 202:3748
203:5748 204:4366 205:2899 206:4071 207:3649 208:5199
209:4100 210:770 211:292 212:1147 213:687 216:4750
217:442 218:3
End of report
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