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Weekly Routing Table Report
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 13 Jul, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105113
Origin ASes present in the Internet Routing Table: 11289
Origin ASes announcing only one prefix: 4140
Transit ASes present in the Internet Routing Table: 1507
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: 16
Number of addresses announced to Internet: 1241668606
Equivalent to 74 /8s, 2 /16s and 91 /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: 71526
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15479
Prefixes being announced from the APNIC address blocks: 13968
APNIC Region origin ASes present in the Internet Routing Table: 1321
APNIC Region origin ASes announcing only one prefix: 467
APNIC Region transit ASes present in the Internet Routing Table: 221
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 72982886
Equivalent to 4 /8s, 89 /16s and 161 /24s
Percentage of available APNIC address space announced: 71.8
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: 71856
Prefixes being announced from the ARIN address blocks: 51537
ARIN Region origin ASes present in the Internet Routing Table: 6806
ARIN Region origin ASes announcing only one prefix: 2015
ARIN Region transit ASes present in the Internet Routing Table: 711
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 13
Number of ARIN addresses announced to Internet: 201497460
Equivalent to 12 /8s, 2 /16s and 155 /24s
Percentage of available ARIN address space announced: 80.1
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: 17765
Prefixes being announced from the RIPE address blocks: 13726
RIPE Region origin ASes present in the Internet Routing Table: 3166
RIPE Region origin ASes announcing only one prefix: 1658
RIPE Region transit ASes present in the Internet Routing Table: 575
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 101358224
Equivalent to 6 /8s, 10 /16s and 154 /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 1673 1330 Telstra
2764 426 345 connect.com.au pty ltd
703 403 383 UUNET Technologies, Inc.
2907 367 1783 SINET Japan
4755 292 162 VSNL India
7474 242 293 Optus Communications
4134 233 1609 Data Communications Bureau
7539 208 181 TANet2, sponsored by NSC, TAI
4766 176 1242 KORnet Powered BY Korea Telec
7545 146 21 TPG Internet Pty Ltd
9443 136 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
7586 112 17 Paradox Digital Pty. Ltd
9583 110 60 Satyam Infoway Ltd.,
4740 109 15 Ozemail
4713 107 869 NTT-OCNET
4812 106 259 Shanghai Telecom Company
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 677 1849 UUNET Technologies, Inc.
3301 429 918 TeliaNet Sweden
15870 426 12 Global Center Frankfurt
719 413 337 LANLINK
1257 278 504 Swipnet AB
1270 249 868 UUNET Germany
680 232 2069 Deutschef Forschurgsnetz
3215 219 495 RAIN
15878 210 8 Global Center Paris
786 184 1890 JANET IP Service
3246 182 170 Clinet
5515 179 654 Sonera Finland
3320 169 1410 Deutsche Telekom AG
8708 148 15 Romania Data System
5400 140 68 Concert Internet Plus Europea
3303 130 575 Swisscom
517 125 272 Xlink
2856 123 776 BTnet UK Regional network
5549 118 66 Seicom Computer Gmb
1267 106 1986 IUnet S.p.A
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2313 8151 UUNET Technologies, Inc.
7018 963 7050 AT&T
1 902 8714 BBN Planet
7046 753 1092 UUNET Technologies, Inc.
1239 674 3322 Sprint ICM-Inria
690 554 97 Merit Network
2914 517 2317 Verio, Inc.
209 494 1876 Qwest
4293 494 99 Cable & Wireless USA
3561 431 2448 Cable & Wireless USA
2149 416 377 Performance Systems, Inc.
3908 416 583 Supernet, Inc.
2548 414 996 Digital Express Group, Inc.
18994 408 10 Global Crossing
3549 349 813 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
18993 314 8 Global Crossing
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2313 8151 UUNET Technologies, Inc.
1221 1673 1330 Telstra
7018 963 7050 AT&T
1 902 8714 BBN Planet
7046 753 1092 UUNET Technologies, Inc.
702 677 1849 UUNET Technologies, Inc.
1239 674 3322 Sprint ICM-Inria
690 554 97 Merit Network
2914 517 2317 Verio, Inc.
209 494 1876 Qwest
4293 494 99 Cable & Wireless USA
3561 431 2448 Cable & Wireless USA
3301 429 918 TeliaNet Sweden
2764 426 345 connect.com.au pty ltd
15870 426 12 Global Center Frankfurt
2149 416 377 Performance Systems, Inc.
3908 416 583 Supernet, Inc.
2548 414 996 Digital Express Group, Inc.
719 413 337 LANLINK
18994 408 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
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
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
65000 PRIVATE 194.100.160.0/24 3246 Clinet
65000 PRIVATE 194.100.161.0/24 3246 Clinet
65000 PRIVATE 194.100.162.0/24 3246 Clinet
65000 PRIVATE 194.100.163.0/24 3246 Clinet
65000 PRIVATE 194.100.164.0/24 3246 Clinet
65000 PRIVATE 194.100.165.0/24 3246 Clinet
65000 PRIVATE 194.100.166.0/24 3246 Clinet
65000 PRIVATE 194.100.167.0/24 3246 Clinet
65000 PRIVATE 194.100.168.0/24 3246 Clinet
65000 PRIVATE 194.100.169.0/24 3246 Clinet
65000 PRIVATE 194.100.170.0/24 3246 Clinet
65000 PRIVATE 194.100.201.0/24 3246 Clinet
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 /14:211 /15:354 /16:6913 /17:1190 /18:2231
/19:6742 /20:5376 /21:4511 /22:6849 /23:8673 /24:59597
/25:293 /26:364 /27:436 /28:449 /29:364 /30:338
/31:1 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1518 1673 Telstra
701 1452 2313 UUNET Technologies, Inc.
7046 586 753 UUNET Technologies, Inc.
690 550 554 Merit Network
4293 478 494 Cable & Wireless USA
7018 474 963 AT&T
702 427 677 UUNET Technologies, Inc.
1 424 902 BBN Planet
15870 422 426 Global Center Frankfurt
18994 406 408 Global Crossing
2764 382 426 connect.com.au pty ltd
209 370 494 Qwest
1239 358 674 Sprint ICM-Inria
703 332 403 UUNET Technologies, Inc.
11371 324 337 Rhythms NetConnections
3908 314 416 Supernet, Inc.
18993 310 314 Global Crossing
2548 304 414 Digital Express Group, Inc.
4323 286 333 Time Warner Communications, I
8013 278 308 PSINet Ltd. Canada
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:575 13:13 15:11
17:13 20:6 24:947 26:1 32:37 38:224
40:2 43:4 44:11 45:1 47:40 52:2
53:4 55:1 56:5 57:15 61:118 62:197
63:2506 64:2730 65:987 66:741 80:39 128:61
129:197 130:54 131:66 132:40 133:1 134:234
135:12 136:36 137:212 138:234 139:87 140:254
141:226 142:122 143:98 144:200 145:29 146:193
147:180 148:236 149:136 150:63 151:264 152:1079
153:38 154:24 155:146 156:92 157:156 158:113
159:80 160:85 161:146 162:161 163:193 164:170
165:248 166:257 167:156 168:204 169:54 170:436
171:20 172:1 192:32 193:2755 194:2799 195:1105
196:3 198:6 199:3875 200:2705 202:3761 203:5773
204:4316 205:2903 206:4093 207:3638 208:5201 209:4101
210:772 211:295 212:1175 213:719 216:4716 217:450
218:3
End of report
-----
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