Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Jun 7 14:06:48 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 08 Jun, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106727
Origin ASes present in the Internet Routing Table: 11018
Origin ASes announcing only one prefix: 4016
Transit ASes present in the Internet Routing Table: 1448
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: 56
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 14
Number of addresses announced to Internet: 1234688720
Equivalent to 73 /8s, 151 /16s and 218 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 51.5
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15691
Prefixes being announced from the APNIC address blocks: 14183
APNIC Region origin ASes present in the Internet Routing Table: 1276
APNIC Region origin ASes announcing only one prefix: 449
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: 70260237
Equivalent to 4 /8s, 48 /16s and 22 /24s
Percentage of available APNIC address space announced: 69.1
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: 74093
Prefixes being announced from the ARIN address blocks: 53155
ARIN Region origin ASes present in the Internet Routing Table: 6694
ARIN Region origin ASes announcing only one prefix: 1979
ARIN Region transit ASes present in the Internet Routing Table: 689
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 12
Number of ARIN addresses announced to Internet: 199291786
Equivalent to 11 /8s, 224 /16s and 243 /24s
Percentage of available ARIN address space announced: 79.2
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: 16921
Prefixes being announced from the RIPE address blocks: 13026
RIPE Region origin ASes present in the Internet Routing Table: 3066
RIPE Region origin ASes announcing only one prefix: 1588
RIPE Region transit ASes present in the Internet Routing Table: 545
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 99649394
Equivalent to 5 /8s, 240 /16s and 135 /24s
Percentage of available RIPE address space announced: 66.0
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 1709 1344 Telstra
2764 537 335 connect.com.au pty ltd
2907 368 1799 SINET Japan
703 354 394 UUNET Technologies, Inc.
4755 339 220 VSNL India
7539 222 195 TANet2, sponsored by NSC, TAI
4134 216 1407 Data Communications Bureau
7474 196 172 Optus Communications
4766 175 1266 KORnet Powered BY Korea Telec
7657 154 25 The Internet Group Limited
1237 152 140 System Engineering Research I
4740 152 20 Ozemail
17561 151 137 Internet service provision to
7545 147 21 TPG Internet Pty Ltd
9443 132 47 INTERNETPRIMUS-AS-A
4786 127 15 NetConnect Communications Pty
7586 116 18 Paradox Digital Pty. Ltd
4763 115 85 Telstra New Zealand
7617 112 91 One.Net Pty Ltd
9583 112 61 Satyam Infoway Ltd.,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 665 1797 UUNET Technologies, Inc.
15870 437 7 Global Center Frankfurt
3301 410 921 TeliaNet Sweden
1257 283 504 Swipnet AB
1270 265 864 UUNET Germany
680 230 2055 Deutschef Forschurgsnetz
15878 216 8 Global Center Paris
3215 212 463 RAIN
719 186 291 LANLINK
786 185 1904 JANET IP Service
5515 177 654 Sonera Finland
3320 164 1410 Deutsche Telekom AG
5400 136 67 Concert Internet Plus Europea
8708 132 14 Romania Data System
517 129 273 Xlink
3303 129 592 Swisscom
2856 117 776 BTnet UK Regional network
1267 99 1954 IUnet S.p.A
1290 97 406 PSINet UK Ltd.
3269 92 616 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2451 7945 UUNET Technologies, Inc.
705 1533 132 UUNET Technologies, Inc.
1 926 8859 BBN Planet
7018 891 6886 AT&T
7046 792 1129 UUNET Technologies, Inc.
1239 679 3177 Sprint ICM-Inria
3491 676 392 CAIS Internet
2914 561 2350 Verio, Inc.
3561 541 2433 Cable & Wireless USA
690 506 85 Merit Network
4293 498 101 Cable & Wireless USA
18994 471 11 Global Crossing
209 464 1829 Qwest
2548 406 997 Digital Express Group, Inc.
3908 398 565 Supernet, Inc.
2149 392 439 Performance Systems, Inc.
4323 348 283 Time Warner Communications, I
5106 348 134 Ameritech Advanced Data Servi
3549 338 1063 Global Crossing
3967 338 457 Exodus Communication
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2451 7945 UUNET Technologies, Inc.
1221 1709 1344 Telstra
705 1533 132 UUNET Technologies, Inc.
1 926 8859 BBN Planet
7018 891 6886 AT&T
7046 792 1129 UUNET Technologies, Inc.
1239 679 3177 Sprint ICM-Inria
3491 676 392 CAIS Internet
702 665 1797 UUNET Technologies, Inc.
2914 561 2350 Verio, Inc.
3561 541 2433 Cable & Wireless USA
2764 537 335 connect.com.au pty ltd
690 506 85 Merit Network
4293 498 101 Cable & Wireless USA
18994 471 11 Global Crossing
209 464 1829 Qwest
15870 437 7 Global Center Frankfurt
3301 410 921 TeliaNet Sweden
2548 406 997 Digital Express Group, Inc.
3908 398 565 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
16898 UNALLOCATED 63.104.202.0/24 701 UUNET Technologies,
16886 UNALLOCATED 63.109.3.0/24 1239 Sprint ICM-Inria
16886 UNALLOCATED 63.167.139.0/24 701 UUNET Technologies,
16898 UNALLOCATED 63.171.80.0/24 701 UUNET Technologies,
65530 PRIVATE 63.188.0.0/20 4999 Sprint
65530 PRIVATE 63.188.0.0/18 4999 Sprint
65530 PRIVATE 63.188.16.0/20 4999 Sprint
65530 PRIVATE 63.188.32.0/20 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 63.188.80.0/20 4999 Sprint
65530 PRIVATE 63.188.96.0/20 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 63.188.144.0/20 4999 Sprint
65530 PRIVATE 63.188.160.0/20 4999 Sprint
65530 PRIVATE 63.188.176.0/20 4999 Sprint
60002 RESERVED 64.76.148.0/24 19583 IMPSAT CHILE S.A.
578 UNALLOCATED 64.230.243.96/27 577 Bell Canada
16729 UNALLOCATED 142.245.0.0/19 701 UUNET Technologies,
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
16778 UNALLOCATED 151.148.0.0/16 3561 Cable & Wireless USA
16889 UNALLOCATED 155.246.0.0/16 209 Qwest
16746 UNALLOCATED 158.81.0.0/17 701 UUNET Technologies,
16889 UNALLOCATED 192.12.216.0/24 209 Qwest
1877 UNALLOCATED 192.108.196.0/24 1755 Ebone Consortium
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 1755 Ebone Consortium
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
65028 PRIVATE 193.105.80.0/24 2072 INRIA-Rocquencourt
65028 PRIVATE 193.105.81.0/24 2072 INRIA-Rocquencourt
65028 PRIVATE 193.105.82.0/24 2072 INRIA-Rocquencourt
65028 PRIVATE 193.105.83.0/24 2072 INRIA-Rocquencourt
65028 PRIVATE 194.5.71.0/24 2072 INRIA-Rocquencourt
16738 UNALLOCATED 198.3.128.0/24 2914 Verio, Inc.
16752 UNALLOCATED 198.77.133.0/24 6423 EasyStreet Online Se
16729 UNALLOCATED 198.96.131.0/24 701 UUNET Technologies,
16903 UNALLOCATED 199.230.64.0/19 6384 bellsouth.net, inc.
16903 UNALLOCATED 199.230.96.0/21 6384 bellsouth.net, inc.
9700 UNALLOCATED 202.30.50.0/23 3786 DACOM Corporation
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
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
16746 UNALLOCATED 204.254.32.0/24 701 UUNET Technologies,
16738 UNALLOCATED 204.255.70.0/24 2914 Verio, Inc.
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,
16778 UNALLOCATED 208.141.228.0/24 3561 Cable & Wireless USA
16752 UNALLOCATED 208.161.96.0/24 1 BBN 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
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 /12:32
/13:77 /14:207 /15:346 /16:6905 /17:1175 /18:2174
/19:6720 /20:5247 /21:4509 /22:6779 /23:8684 /24:61402
/25:278 /26:450 /27:463 /28:489 /29:374 /30:317
/31:1 /32:58
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:372 13:10 15:1 17:6 24:656
26:1 32:13 38:572 44:3 47:1 53:2
55:1 57:13 61:52 62:133 63:1955 64:1688
65:1125 66:361 80:2 128:38 129:154 130:23
131:39 132:9 133:1 134:171 135:11 136:16
137:120 138:246 139:45 140:140 141:158 142:69
143:44 144:140 145:9 146:139 147:136 148:102
149:132 150:36 151:285 152:575 153:32 154:22
155:77 156:58 157:111 158:183 159:70 160:29
161:54 162:69 163:134 164:99 165:130 166:196
167:141 168:97 169:36 170:262 171:2 192:5420
193:1841 194:2047 195:748 196:420 198:3629 199:3356
200:2128 201:1 202:2498 203:4888 204:3358 205:2288
206:2801 207:2851 208:3057 209:3121 210:639 211:120
212:837 213:407 214:9 215:11 216:3044 217:273
End of report
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