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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 12 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 102801
Origin ASes present in the Internet Routing Table: 10555
Origin ASes announcing only one prefix: 3782
Transit ASes present in the Internet Routing Table: 1413
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 20
Illegal AS announcements present in the Routing Table: 17
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 4
Number of addresses announced to Internet: 1235314044
Equivalent to 73 /8s, 161 /16s and 101 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 51.0
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15799
Prefixes being announced from the APNIC address blocks: 14288
APNIC Region origin ASes present in the Internet Routing Table: 1224
APNIC Region origin ASes announcing only one prefix: 433
APNIC Region transit ASes present in the Internet Routing Table: 199
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 69549376
Equivalent to 4 /8s, 37 /16s and 61 /24s
Percentage of available APNIC address space announced: 68.4
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: 70833
Prefixes being announced from the ARIN address blocks: 48407
ARIN Region origin ASes present in the Internet Routing Table: 6426
ARIN Region origin ASes announcing only one prefix: 1884
ARIN Region transit ASes present in the Internet Routing Table: 668
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 180054423
Equivalent to 10 /8s, 187 /16s and 105 /24s
Percentage of available ARIN address space announced: 82.6
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
ARIN Address Blocks 63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 16152
Prefixes being announced from the RIPE address blocks: 12773
RIPE Region origin ASes present in the Internet Routing Table: 2903
RIPE Region origin ASes announcing only one prefix: 1465
RIPE Region transit ASes present in the Internet Routing Table: 544
Average RIPE Region AS path length visible: 6.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 96639039
Equivalent to 5 /8s, 194 /16s and 152 /24s
Percentage of available RIPE address space announced: 82.3
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, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /19 equiv Description
1221 2085 684 Telstra
2764 436 147 connect.com.au pty ltd
703 380 204 UUNET Technologies, Inc.
2907 363 884 SINET Japan
4755 298 110 VSNL India
4538 243 1024 China Education and Research
7539 223 98 Delegated to TWNIC for subseq
7474 187 85 Optus Communications
4134 185 615 Data Communications Bureau
4766 179 618 KORnet Powered BY Korea Telec
4763 177 34 Telstra New Zealand
1237 163 71 System Engineering Research I
9269 160 22 Hong Kong CTI
7657 155 12 The Internet Group Limited
17561 150 60 Internet service provision to
7545 149 10 TPG Internet Pty Ltd
4740 147 10 Ozemail
4786 128 7 NetConnect Communications Pty
7617 124 46 One.Net Pty Ltd
7586 123 9 Paradox Digital Pty. Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 463 661 UUNET Technologies, Inc.
3301 397 337 TeliaNet Sweden
1257 278 247 Swipnet AB
1270 278 448 UUNET Germany
680 206 913 Deutschef Forschurgsnetz
3215 206 235 RAIN
719 190 146 LANLINK
5515 190 336 Sonera Finland
786 180 943 JANET IP Service
3320 159 710 Deutsche Telekom AG
517 129 135 Xlink
5400 125 33 Concert Internet Plus Europea
3303 123 298 Swisscom
2856 122 388 BTnet UK Regional network
1290 115 206 PSINet UK Ltd.
8708 114 5 Romania Data System
1849 108 224 UUNET UK (formerly PIPEX)
3352 108 241 Ibernet, Internet A
1267 97 978 IUnet S.p.A
1901 97 77 EUnet Austria
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2407 3754 UUNET Technologies, Inc.
705 1355 61 UUNET Technologies, Inc.
1 963 4496 BBN Planet
7018 961 3194 AT&T
7046 825 552 UUNET Technologies, Inc.
1239 645 1606 Sprint ICM-Inria
2914 604 1211 Verio, Inc.
3561 553 1240 Cable & Wireless USA
174 533 2759 PSINet Inc.
3549 517 495 Global Crossing
4293 481 52 Cable & Wireless USA
209 446 675 Qwest
690 414 49 Merit Network
2548 398 514 Digital Express Group, Inc.
3908 377 262 Supernet, Inc.
8151 361 218 UniNet S.A. de C.V.
4323 337 136 Time Warner Communications, I
8013 337 55 PSINet Ltd. Canada
3967 334 224 Exodus Communication
11371 316 49 Rhythms NetConnections
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2407 3754 UUNET Technologies, Inc.
1221 2085 684 Telstra
705 1355 61 UUNET Technologies, Inc.
1 963 4496 BBN Planet
7018 961 3194 AT&T
7046 825 552 UUNET Technologies, Inc.
1239 645 1606 Sprint ICM-Inria
2914 604 1211 Verio, Inc.
3561 553 1240 Cable & Wireless USA
174 533 2759 PSINet Inc.
3549 517 495 Global Crossing
4293 481 52 Cable & Wireless USA
702 463 661 UUNET Technologies, Inc.
209 446 675 Qwest
2764 436 147 connect.com.au pty ltd
690 414 49 Merit Network
2548 398 514 Digital Express Group, Inc.
3301 397 337 TeliaNet Sweden
703 380 204 UUNET Technologies, Inc.
3908 377 262 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
2027 UNALLOCATED 150.186.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.187.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.188.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.189.0.0/16 10530 Interpacket Group, I
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
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
65535 PRIVATE 203.24.169.0/24 17486 Swiftel Communicatio
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
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 IANA Reserved Addresses
----------------------------------
Network Origin AS Description
106.1.1.0/24 5705 Sirius Solutions, Inc.
106.1.2.0/24 5705 Sirius Solutions, Inc.
223.255.46.0/24 6853 GLOBAL-ONE-PORTUGAL
223.255.70.0/24 6853 GLOBAL-ONE-PORTUGAL
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:22 /9:4 /10:4 /11:10 /12:30
/13:64 /14:204 /15:328 /16:6906 /17:1120 /18:2088
/19:6570 /20:4999 /21:4430 /22:6727 /23:8634 /24:59318
/25:262 /26:368 /27:153 /28:115 /29:84 /30:182
/31:1 /32:178
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:352 13:10 15:1 17:1 24:707
26:1 32:12 38:7 44:3 47:2 53:2
55:1 57:12 61:28 62:133 63:1918 64:1443
65:712 66:238 106:2 128:31 129:120 130:20
131:25 132:10 133:1 134:157 135:8 136:16
137:107 138:246 139:52 140:141 141:174 142:56
143:76 144:133 145:9 146:134 147:131 148:153
149:134 150:27 151:176 152:836 153:33 154:13
155:74 156:39 157:107 158:61 159:80 160:19
161:56 162:61 163:140 164:113 165:127 166:175
167:134 168:80 169:32 170:211 171:2 192:5396
193:1902 194:2058 195:756 196:375 198:3675 199:3366
200:1892 202:2484 203:5000 204:3356 205:2246 206:2728
207:2823 208:2905 209:3257 210:488 211:191 212:815
213:385 214:8 215:11 216:2891 217:190 223:2
End of report
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