Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Jun 21 14:06:29 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 22 Jun, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105195
Origin ASes present in the Internet Routing Table: 11133
Origin ASes announcing only one prefix: 4062
Transit ASes present in the Internet Routing Table: 1482
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: 27
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: 1220402161
Equivalent to 72 /8s, 189 /16s and 219 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 64.0
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 71844
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15442
Prefixes being announced from the APNIC address blocks: 14005
APNIC Region origin ASes present in the Internet Routing Table: 1289
APNIC Region origin ASes announcing only one prefix: 458
APNIC Region transit ASes present in the Internet Routing Table: 216
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 71557800
Equivalent to 4 /8s, 67 /16s and 226 /24s
Percentage of available APNIC address space announced: 70.4
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: 72755
Prefixes being announced from the ARIN address blocks: 52069
ARIN Region origin ASes present in the Internet Routing Table: 6753
ARIN Region origin ASes announcing only one prefix: 1998
ARIN Region transit ASes present in the Internet Routing Table: 705
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 200204129
Equivalent to 11 /8s, 238 /16s and 223 /24s
Percentage of available ARIN address space announced: 79.6
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, 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: 16987
Prefixes being announced from the RIPE address blocks: 13080
RIPE Region origin ASes present in the Internet Routing Table: 3100
RIPE Region origin ASes announcing only one prefix: 1606
RIPE Region transit ASes present in the Internet Routing Table: 562
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 100623525
Equivalent to 5 /8s, 255 /16s and 100 /24s
Percentage of available RIPE address space announced: 66.6
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 1745 1348 Telstra
2764 452 329 connect.com.au pty ltd
703 383 380 UUNET Technologies, Inc.
2907 367 1783 SINET Japan
4755 340 185 VSNL India
7474 230 275 Optus Communications
4134 220 1441 Data Communications Bureau
7539 209 183 TANet2, sponsored by NSC, TAI
4766 179 1258 KORnet Powered BY Korea Telec
7545 148 23 TPG Internet Pty Ltd
7657 134 24 The Internet Group Limited
9443 132 38 INTERNETPRIMUS-AS-A
4786 125 15 NetConnect Communications Pty
4740 120 16 Ozemail
4763 117 85 Telstra New Zealand
9583 115 59 Satyam Infoway Ltd.,
17561 115 151 Internet service provision to
7586 113 17 Paradox Digital Pty. Ltd
4713 107 869 NTT-OCNET
9797 104 32 Asia Online Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 655 1765 UUNET Technologies, Inc.
15870 432 8 Global Center Frankfurt
3301 412 917 TeliaNet Sweden
1257 282 504 Swipnet AB
1270 260 871 UUNET Germany
680 229 2053 Deutschef Forschurgsnetz
15878 216 8 Global Center Paris
3215 204 494 RAIN
786 185 1904 JANET IP Service
719 183 291 LANLINK
5515 174 654 Sonera Finland
3320 166 1410 Deutsche Telekom AG
8708 139 14 Romania Data System
5400 138 68 Concert Internet Plus Europea
3303 130 576 Swisscom
517 127 272 Xlink
2856 120 776 BTnet UK Regional network
1267 100 1954 IUnet S.p.A
1290 96 406 PSINet UK Ltd.
3269 91 663 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2445 8051 UUNET Technologies, Inc.
7018 939 6980 AT&T
1 932 8826 BBN Planet
7046 777 1094 UUNET Technologies, Inc.
3491 675 392 CAIS Internet
1239 658 3218 Sprint ICM-Inria
2914 554 2348 Verio, Inc.
690 544 76 Merit Network
3561 543 2458 Cable & Wireless USA
4293 495 101 Cable & Wireless USA
209 468 1854 Qwest
18994 460 11 Global Crossing
2548 416 997 Digital Express Group, Inc.
2149 408 409 Performance Systems, Inc.
3908 403 565 Supernet, Inc.
3549 398 1041 Global Crossing
5106 358 136 Ameritech Advanced Data Servi
4323 344 314 Time Warner Communications, I
11371 335 100 Rhythms NetConnections
15290 333 429 AT&T Canada IES
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2445 8051 UUNET Technologies, Inc.
1221 1745 1348 Telstra
7018 939 6980 AT&T
1 932 8826 BBN Planet
7046 777 1094 UUNET Technologies, Inc.
3491 675 392 CAIS Internet
1239 658 3218 Sprint ICM-Inria
702 655 1765 UUNET Technologies, Inc.
2914 554 2348 Verio, Inc.
690 544 76 Merit Network
3561 543 2458 Cable & Wireless USA
4293 495 101 Cable & Wireless USA
209 468 1854 Qwest
18994 460 11 Global Crossing
2764 452 329 connect.com.au pty ltd
15870 432 8 Global Center Frankfurt
2548 416 997 Digital Express Group, Inc.
3301 412 917 TeliaNet Sweden
2149 408 409 Performance Systems, Inc.
3908 403 565 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65530 PRIVATE 63.188.0.0/20 4999 Sprint
65530 PRIVATE 63.188.0.0/18 4999 Sprint
65530 PRIVATE 63.188.48.0/20 4999 Sprint
65530 PRIVATE 63.188.64.0/20 4999 Sprint
65530 PRIVATE 63.188.64.0/18 4999 Sprint
65530 PRIVATE 63.188.112.0/20 4999 Sprint
65530 PRIVATE 63.188.128.0/20 4999 Sprint
65530 PRIVATE 63.188.128.0/18 4999 Sprint
65530 PRIVATE 63.188.176.0/20 4999 Sprint
578 UNALLOCATED 64.230.242.0/27 577 Bell Canada
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
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
64666 PRIVATE 206.35.144.0/22 7923 Unwired Planet
5979 UNALLOCATED 206.197.206.0/24 721 DLA Systems Automati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64666 PRIVATE 208.232.188.0/22 7923 Unwired Planet
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 *
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 /14:210 /15:353 /16:6900 /17:1181 /18:2186
/19:6768 /20:5294 /21:4507 /22:6787 /23:8683 /24:59904
/25:268 /26:354 /27:435 /28:454 /29:369 /30:309
/31:1 /32:83
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1597 2445 UUNET Technologies, Inc.
1221 1588 1745 Telstra
3491 650 675 CAIS Internet
7046 613 777 UUNET Technologies, Inc.
690 541 544 Merit Network
4293 478 495 Cable & Wireless USA
18994 458 460 Global Crossing
7018 450 939 AT&T
1 438 932 BBN Planet
15870 430 432 Global Center Frankfurt
702 413 655 UUNET Technologies, Inc.
2764 408 452 connect.com.au pty ltd
209 349 468 Qwest
5106 347 358 Ameritech Advanced Data Servi
1239 335 658 Sprint ICM-Inria
3561 334 543 Cable & Wireless USA
11371 322 335 Rhythms NetConnections
18993 320 323 Global Crossing
703 313 383 UUNET Technologies, Inc.
2548 305 416 Digital Express Group, Inc.
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:568 13:13 15:9
17:13 20:2 24:858 26:1 32:33 35:4
38:572 40:2 44:11 47:38 52:2 53:4
55:1 56:5 57:15 61:87 62:196 63:2501
64:2832 65:1033 66:719 80:12 128:61 129:197
130:62 131:63 132:40 133:1 134:235 135:16
136:29 137:175 138:278 139:84 140:248 141:225
142:147 143:99 144:94 145:31 146:187 147:177
148:208 149:174 150:61 151:261 152:1117 153:37
154:25 155:141 156:75 157:153 158:102 159:104
160:71 161:131 162:161 163:216 164:179 165:286
166:258 167:150 168:199 169:55 170:432 171:20
172:1 192:31 193:2560 194:2716 195:1031 196:4
198:7 199:3931 200:2731 202:3700 203:5973 204:4341
205:2933 206:4159 207:3815 208:5175 209:4169 210:775
211:282 212:1161 213:590 216:4754 217:390 218:2
End of report
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