Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Jun 28 14:06:25 EDT 2001
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 29 Jun, 2001
Analysis Summary
----------------
BGP routing table entries examined: 104794
Origin ASes present in the Internet Routing Table: 11171
Origin ASes announcing only one prefix: 4078
Transit ASes present in the Internet Routing Table: 1506
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: 17
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1220255575
Equivalent to 72 /8s, 187 /16s and 159 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 71483
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15432
Prefixes being announced from the APNIC address blocks: 13952
APNIC Region origin ASes present in the Internet Routing Table: 1300
APNIC Region origin ASes announcing only one prefix: 460
APNIC Region transit ASes present in the Internet Routing Table: 226
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 71940112
Equivalent to 4 /8s, 73 /16s and 184 /24s
Percentage of available APNIC address space announced: 70.7
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: 72256
Prefixes being announced from the ARIN address blocks: 51765
ARIN Region origin ASes present in the Internet Routing Table: 6765
ARIN Region origin ASes announcing only one prefix: 1997
ARIN Region transit ASes present in the Internet Routing Table: 712
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 199482914
Equivalent to 11 /8s, 227 /16s and 222 /24s
Percentage of available ARIN address space announced: 79.3
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: 17106
Prefixes being announced from the RIPE address blocks: 13174
RIPE Region origin ASes present in the Internet Routing Table: 3115
RIPE Region origin ASes announcing only one prefix: 1621
RIPE Region transit ASes present in the Internet Routing Table: 567
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 100641302
Equivalent to 5 /8s, 255 /16s and 170 /24s
Percentage of available RIPE address space announced: 66.7
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 1722 1346 Telstra
2764 428 329 connect.com.au pty ltd
2907 367 1767 SINET Japan
703 354 360 UUNET Technologies, Inc.
4755 299 171 VSNL India
7474 234 292 Optus Communications
4134 228 1509 Data Communications Bureau
7539 209 183 TANet2, sponsored by NSC, TAI
4766 177 1258 KORnet Powered BY Korea Telec
4740 151 36 Ozemail
7545 143 21 TPG Internet Pty Ltd
9443 133 38 INTERNETPRIMUS-AS-A
4786 127 15 NetConnect Communications Pty
7657 125 23 The Internet Group Limited
4763 117 85 Telstra New Zealand
17561 115 151 Internet service provision to
9583 113 59 Satyam Infoway Ltd.,
7586 112 17 Paradox Digital Pty. Ltd
4713 107 869 NTT-OCNET
4732 106 358 DDI Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 661 1837 UUNET Technologies, Inc.
15870 430 12 Global Center Frankfurt
3301 413 917 TeliaNet Sweden
1257 282 504 Swipnet AB
1270 258 870 UUNET Germany
680 230 2053 Deutschef Forschurgsnetz
15878 217 9 Global Center Paris
3215 216 495 RAIN
719 185 291 LANLINK
786 184 1904 JANET IP Service
5515 175 654 Sonera Finland
3320 167 1410 Deutsche Telekom AG
8708 141 14 Romania Data System
5400 138 68 Concert Internet Plus Europea
517 130 272 Xlink
3303 130 576 Swisscom
2856 120 776 BTnet UK Regional network
1267 106 1986 IUnet S.p.A
1290 95 406 PSINet UK Ltd.
3269 93 664 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2473 8054 UUNET Technologies, Inc.
7018 954 7103 AT&T
1 912 8730 BBN Planet
7046 738 1087 UUNET Technologies, Inc.
1239 660 3299 Sprint ICM-Inria
3491 555 385 CAIS Internet
2914 546 2328 Verio, Inc.
690 542 78 Merit Network
4293 498 101 Cable & Wireless USA
3908 492 567 Supernet, Inc.
209 485 1856 Qwest
3561 469 2452 Cable & Wireless USA
18994 415 10 Global Crossing
2548 414 980 Digital Express Group, Inc.
3549 387 849 Global Crossing
2149 384 391 Performance Systems, Inc.
705 342 57 UUNET Technologies, Inc.
11371 334 100 Rhythms NetConnections
3967 327 453 Exodus Communication
15290 322 370 AT&T Canada IES
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2473 8054 UUNET Technologies, Inc.
1221 1722 1346 Telstra
7018 954 7103 AT&T
1 912 8730 BBN Planet
7046 738 1087 UUNET Technologies, Inc.
702 661 1837 UUNET Technologies, Inc.
1239 660 3299 Sprint ICM-Inria
3491 555 385 CAIS Internet
2914 546 2328 Verio, Inc.
690 542 78 Merit Network
4293 498 101 Cable & Wireless USA
3908 492 567 Supernet, Inc.
209 485 1856 Qwest
3561 469 2452 Cable & Wireless USA
15870 430 12 Global Center Frankfurt
2764 428 329 connect.com.au pty ltd
18994 415 10 Global Crossing
2548 414 980 Digital Express Group, Inc.
3301 413 917 TeliaNet Sweden
3549 387 849 Global Crossing
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
578 UNALLOCATED 64.230.242.0/27 577 Bell Canada
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
6020 UNALLOCATED 164.233.0.0/16 209 Qwest
5962 UNALLOCATED 192.41.249.0/24 721 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
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
9700 UNALLOCATED 202.30.50.0/23 3786 DACOM Corporation
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
5954 UNALLOCATED 204.130.191.0/24 721 DLA Systems Automati
5979 UNALLOCATED 206.197.206.0/24 721 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
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 >>UNKNOWN<<
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 /8:19 /9:5 /10:6 /11:9 /12:32
/13:78 /14:212 /15:352 /16:6895 /17:1188 /18:2185
/19:6725 /20:5319 /21:4487 /22:6787 /23:8637 /24:59443
/25:294 /26:376 /27:508 /28:463 /29:372 /30:316
/31:1 /32:85
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1612 2473 UUNET Technologies, Inc.
1221 1565 1722 Telstra
7046 573 738 UUNET Technologies, Inc.
690 539 542 Merit Network
3491 530 555 CAIS Internet
4293 481 498 Cable & Wireless USA
7018 459 954 AT&T
1 429 912 BBN Planet
15870 426 430 Global Center Frankfurt
702 417 661 UUNET Technologies, Inc.
18994 413 415 Global Crossing
3908 390 492 Supernet, Inc.
2764 384 428 connect.com.au pty ltd
209 365 485 Qwest
1239 344 660 Sprint ICM-Inria
11371 321 334 Rhythms NetConnections
18993 316 320 Global Crossing
2548 306 414 Digital Express Group, Inc.
705 298 342 UUNET Technologies, Inc.
703 288 354 UUNET Technologies, Inc.
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:569 13:13 15:11
17:13 20:4 24:867 26:1 32:33 35:4
38:464 40:2 44:11 45:1 47:38 52:2
53:4 55:1 56:5 57:16 61:94 62:202
63:2552 64:2731 65:1093 66:719 80:17 128:59
129:200 130:54 131:63 132:39 133:1 134:231
135:16 136:36 137:176 138:277 139:85 140:247
141:226 142:113 143:98 144:189 145:31 146:192
147:145 148:203 149:129 150:59 151:262 152:1117
153:38 154:27 155:143 156:75 157:157 158:101
159:104 160:73 161:136 162:162 163:217 164:181
165:239 166:256 167:153 168:199 169:55 170:435
171:20 172:1 192:34 193:2559 194:2726 195:1027
196:4 198:6 199:3857 200:2716 202:3735 203:5852
204:4343 205:2903 206:4127 207:3729 208:5217 209:4125
210:778 211:282 212:1170 213:619 216:4748 217:417
218:3
End of report
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