Weekly Routing Table Report
Routing Analysis
cscora at dev.apnic.net
Thu Jul 26 14:19:31 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 27 Jul, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105607
Origin ASes present in the Internet Routing Table: 11377
Origin ASes announcing only one prefix: 4157
Transit ASes present in the Internet Routing Table: 1500
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 55
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 18
Number of addresses announced to Internet: 1246191288
Equivalent to 74 /8s, 71 /16s and 94 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 51.5
Total number of prefixes smaller than registry allocations: 71945
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15682
Prefixes being announced from the APNIC address blocks: 14143
APNIC Region origin ASes present in the Internet Routing Table: 1330
APNIC Region origin ASes announcing only one prefix: 460
APNIC Region transit ASes present in the Internet Routing Table: 222
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 74489733
Equivalent to 4 /8s, 112 /16s and 159 /24s
Percentage of available APNIC address space announced: 73.2
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: 72516
Prefixes being announced from the ARIN address blocks: 52358
ARIN Region origin ASes present in the Internet Routing Table: 6855
ARIN Region origin ASes announcing only one prefix: 2012
ARIN Region transit ASes present in the Internet Routing Table: 707
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 12
Number of ARIN addresses announced to Internet: 200791200
Equivalent to 11 /8s, 247 /16s and 212 /24s
Percentage of available ARIN address space announced: 79.8
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: 17406
Prefixes being announced from the RIPE address blocks: 13497
RIPE Region origin ASes present in the Internet Routing Table: 3208
RIPE Region origin ASes announcing only one prefix: 1685
RIPE Region transit ASes present in the Internet Routing Table: 573
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 102374143
Equivalent to 6 /8s, 26 /16s and 26 /24s
Percentage of available RIPE address space announced: 67.8
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 1669 1330 Telstra
2764 442 362 connect.com.au pty ltd
703 402 367 UUNET Technologies, Inc.
2907 367 1784 SINET Japan
4755 298 163 VSNL India
7474 245 293 Optus Communications
4134 233 1618 Data Communications Bureau
7539 209 175 TANet2, sponsored by NSC, TAI
4766 176 1336 KORnet Powered BY Korea Telec
7545 145 21 TPG Internet Pty Ltd
9443 143 40 INTERNETPRIMUS-AS-A
4786 129 17 NetConnect Communications Pty
4763 119 69 Telstra New Zealand
17561 115 151 Internet service provision to
7586 114 17 Paradox Digital Pty. Ltd
4812 111 279 Shanghai Telecom Company
7657 111 22 The Internet Group Limited
4713 109 878 NTT-OCNET
4740 109 15 Ozemail
4732 108 358 DDI Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 680 1831 UUNET Technologies, Inc.
3301 430 918 TeliaNet Sweden
15870 412 12 Global Center Frankfurt
1257 280 520 Swipnet AB
1270 244 869 UUNET Germany
680 229 2069 Deutschef Forschurgsnetz
3215 227 496 RAIN
15878 202 8 Global Center Paris
719 185 291 LANLINK
786 184 1890 JANET IP Service
5515 176 654 Sonera Finland
3320 175 1411 Deutsche Telekom AG
8708 153 15 Romania Data System
5400 139 66 Concert Internet Plus Europea
3303 131 576 Swisscom
517 125 272 Xlink
2856 123 776 BTnet UK Regional network
5549 117 66 Seicom Computer Gmb
8503 108 3 PCNET - PCNET DATA Network
1267 107 1989 IUnet S.p.A
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2309 8321 UUNET Technologies, Inc.
7018 980 7031 AT&T
1 902 8699 BBN Planet
7046 755 1072 UUNET Technologies, Inc.
1239 694 3296 Sprint ICM-Inria
2914 516 2319 Verio, Inc.
690 507 77 Merit Network
4293 484 98 Cable & Wireless USA
209 476 1868 Qwest
2551 452 651 NETCOM On-Line Communication
3561 430 2430 Cable & Wireless USA
3908 415 487 Supernet, Inc.
2548 413 1010 Digital Express Group, Inc.
2149 408 345 Performance Systems, Inc.
18994 392 10 Global Crossing
3549 357 815 Global Crossing
4323 339 314 Time Warner Communications, I
11371 337 100 Rhythms NetConnections
3967 334 454 Exodus Communication
15290 327 340 AT&T Canada IES
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2309 8321 UUNET Technologies, Inc.
1221 1669 1330 Telstra
7018 980 7031 AT&T
1 902 8699 BBN Planet
7046 755 1072 UUNET Technologies, Inc.
1239 694 3296 Sprint ICM-Inria
702 680 1831 UUNET Technologies, Inc.
2914 516 2319 Verio, Inc.
690 507 77 Merit Network
4293 484 98 Cable & Wireless USA
209 476 1868 Qwest
2551 452 651 NETCOM On-Line Communication
2764 442 362 connect.com.au pty ltd
3301 430 918 TeliaNet Sweden
3561 430 2430 Cable & Wireless USA
3908 415 487 Supernet, Inc.
2548 413 1010 Digital Express Group, Inc.
15870 412 12 Global Center Frankfurt
2149 408 345 Performance Systems, Inc.
703 402 367 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
17680 UNALLOCATED 61.213.48.0/20 10009 ARE Works,Inc.
18541 UNALLOCATED 63.166.66.0/24 1239 Sprint ICM-Inria
18541 UNALLOCATED 63.169.205.0/24 1239 Sprint ICM-Inria
19714 UNALLOCATED 64.166.88.0/24 701 UUNET Technologies,
65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services
19714 UNALLOCATED 65.200.78.0/23 701 UUNET Technologies,
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
19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu
65460 PRIVATE 192.231.11.0/24 7018 AT&T
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
20938 UNALLOCATED 195.13.38.0/23 8246 Internet Technologie
17803 UNALLOCATED 202.68.128.0/19 4755 VSNL India
17803 UNALLOCATED 202.68.134.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.135.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.136.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.138.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.139.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.140.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.145.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.146.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.147.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.148.0/24 4755 VSNL India
17803 UNALLOCATED 202.68.150.0/24 4755 VSNL India
17803 UNALLOCATED 202.157.190.0/23 4755 VSNL India
17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET
4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net
21637 UNALLOCATED 204.1.98.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.1.106.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.1.107.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.1.108.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.1.109.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.68.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.76.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.94.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.95.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.96.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.100.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.104.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.106.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.107.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.109.0/24 2914 Verio, Inc.
21637 UNALLOCATED 204.27.115.0/24 2914 Verio, Inc.
20413 UNALLOCATED 204.108.128.0/17 6347 SAVVIS Communication
19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio
20413 UNALLOCATED 207.8.234.0/24 6347 SAVVIS Communication
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
20413 UNALLOCATED 207.106.119.0/24 6347 SAVVIS Communication
19322 UNALLOCATED 208.44.17.0/24 209 Qwest
21879 UNALLOCATED 208.253.207.96/27 16467 NextWeb, Inc.
21879 UNALLOCATED 209.81.62.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
82.105.0.0/16 3269 TELECOM ITALIA
82.105.128.0/17 3269 TELECOM ITALIA
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 /12:32
/13:82 /14:218 /15:362 /16:6921 /17:1189 /18:2252
/19:6762 /20:5492 /21:4560 /22:6837 /23:8663 /24:59919
/25:291 /26:363 /27:430 /28:435 /29:352 /30:336
/31:1 /32:70
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1516 1669 Telstra
701 1444 2309 UUNET Technologies, Inc.
7046 589 755 UUNET Technologies, Inc.
690 504 507 Merit Network
7018 500 980 AT&T
4293 468 484 Cable & Wireless USA
702 429 680 UUNET Technologies, Inc.
1 423 902 BBN Planet
15870 408 412 Global Center Frankfurt
2764 397 442 connect.com.au pty ltd
18994 390 392 Global Crossing
1239 380 694 Sprint ICM-Inria
209 356 476 Qwest
2551 342 452 NETCOM On-Line Communication
703 333 402 UUNET Technologies, Inc.
11371 324 337 Rhythms NetConnections
3908 320 415 Supernet, Inc.
18993 305 309 Global Crossing
2548 303 413 Digital Express Group, Inc.
4323 290 339 Time Warner Communications, I
Advertised prefixes smaller than registry allocations (per /8 block)
--------------------------------------------------------------------
4:1 6:12 9:6 12:585 13:13 15:11
17:13 20:7 24:850 26:1 32:43 35:3
38:20 40:2 43:4 44:10 45:1 47:40
52:2 53:4 55:1 56:5 57:15 61:137
62:196 63:2520 64:2753 65:1036 66:773 80:44
128:61 129:182 130:54 131:67 132:42 133:1
134:240 135:13 136:37 137:180 138:233 139:86
140:259 141:225 142:118 143:98 144:209 145:32
146:195 147:179 148:250 149:124 150:63 151:264
152:965 153:40 154:16 155:141 156:92 157:156
158:114 159:83 160:93 161:146 162:157 163:248
164:206 165:252 166:262 167:173 168:208 169:54
170:449 171:20 172:1 192:32 193:2624 194:2768
195:1046 196:3 198:6 199:3942 200:2751 202:3775
203:5804 204:4404 205:2948 206:4144 207:3688 208:5215
209:4415 210:795 211:335 212:1121 213:711 216:4760
217:461 218:3
End of report
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