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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 20:00 +10GMT Fri 29 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110532
Prefixes after maximum aggregation: 72321
Unique aggregates announced to Internet: 53586
Total ASes present in the Internet Routing Table: 12821
Origin-only ASes present in the Internet Routing Table: 11097
Origin ASes announcing only one prefix: 4863
Transit ASes present in the Internet Routing Table: 1724
Transit-only ASes present in the Internet Routing Table: 54
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: 11
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: 1163171560
Equivalent to 69 /8s, 84 /16s and 150 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 74196
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18278
Total APNIC prefixes after maximum aggregation: 10781
Prefixes being announced from the APNIC address blocks: 16756
Unique aggregates announced from the APNIC address blocks: 10127
APNIC Region origin ASes present in the Internet Routing Table: 1471
APNIC Region origin ASes announcing only one prefix: 477
APNIC Region transit ASes present in the Internet Routing Table: 262
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82277440
Equivalent to 4 /8s, 231 /16s and 116 /24s
Percentage of available APNIC address space announced: 60.8
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73730
Total ARIN prefixes after maximum aggregation: 47319
Prefixes being announced from the ARIN address blocks: 52165
Unique aggregates announced from the ARIN address blocks: 17506
ARIN Region origin ASes present in the Internet Routing Table: 7584
ARIN Region origin ASes announcing only one prefix: 2390
ARIN Region transit ASes present in the Internet Routing Table: 769
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 184069572
Equivalent to 10 /8s, 248 /16s and 173 /24s
Percentage of available ARIN address space announced: 68.6
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 - 23551
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 18518
Total RIPE prefixes after maximum aggregation: 14221
Prefixes being announced from the RIPE address blocks: 15231
Unique aggregates announced from the RIPE address blocks: 10125
RIPE Region origin ASes present in the Internet Routing Table: 3711
RIPE Region origin ASes announcing only one prefix: 1996
RIPE Region transit ASes present in the Internet Routing Table: 677
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 108317472
Equivalent to 6 /8s, 116 /16s and 203 /24s
Percentage of available RIPE address space announced: 71.7
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
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 MaxAgg Description
1221 1284 1211 944 Telstra Pty Ltd
4538 464 1194 17 China Education and Research
2907 437 1895 371 SINET Japan
703 416 336 324 UUNET Technologies, Inc.
2764 385 361 360 connect.com.au pty ltd
9394 331 113 4 CHINA RAILWAY Internet(CRNET)
7474 312 290 211 Optus Communications Pty Ltd
4755 285 111 81 Videsh Sanchar Nigam Ltd. Aut
4134 276 1978 98 Data Communications Bureau
9443 276 44 64 Primus Telecommunications
17557 256 18 98 Pakistan Telecom
4766 209 1516 147 Korea Internet Exchange for "
7539 169 256 162 TANet2, sponsored by NSC, TAI
4804 164 84 67 Microplex PTY LTD
9583 151 32 5 Satyam Infoway Ltd.,
9768 142 385 82 Korea Telecom
4780 129 186 39 Digital United Inc.
7657 122 22 85 The Internet Group Limited
4713 120 891 104 NTT Communications Corporatio
17676 119 1904 12 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1029 2596 844 UUNET Technologies, Inc.
3301 389 923 344 TeliaNet Sweden
3215 267 581 175 France Telecom / &Equant
5515 264 696 169 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
1257 225 472 221 SWIPnet Swedish IP Network
3320 225 1964 173 Deutsche Telekom AG
5400 197 84 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 160 23 148 Romania Data Systems S.A.
2856 129 788 118 BTnet UK Regional network
12302 125 8 46 MobiFon S.A.
3303 124 565 123 Swisscom Ltd
3269 117 694 71 TELECOM ITALIA
8297 117 53 67 Teleglobe Autonomous System i
5511 103 194 91 France Telecom
517 102 226 98 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 96 84 36 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2085 8445 1448 UUNET Technologies, Inc.
7018 1238 7513 919 AT&T
3908 849 1675 479 Supernet, Inc.
1239 813 3371 636 Sprint
1 811 8123 608 BBN Planet
852 629 1112 416 Telus Advanced Communications
4323 629 436 252 Time Warner Communications, I
7046 602 837 373 UUNET Technologies, Inc.
209 557 1993 323 Qwest
7132 522 552 161 Southwestern Bell Internet Se
3549 513 860 265 Global Crossing
690 454 67 297 Merit Network
7843 421 298 47 Adelphia Corp.
2914 415 2162 412 Verio, Inc.
705 374 115 266 UUNET Technologies, Inc.
2149 367 208 305 Performance Systems, Inc.
3741 341 731 234 The Internet Solution
7066 336 203 251 Virginia Polytechnic Institut
6197 332 217 173 BellSouth Network Solutions,
3561 321 2152 288 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 464 447 China Education and Research
4323 629 377 Time Warner Communications, I
7843 421 374 Adelphia Corp.
3908 849 370 Supernet, Inc.
7132 522 361 Southwestern Bell Internet Se
1221 1284 340 Telstra Pty Ltd
9394 331 327 CHINA RAILWAY Internet(CRNET)
7018 1238 319 AT&T
4151 308 292 USDA
6198 311 280 BellSouth Network Solutions,
4565 311 277 Epoch Networks
11371 277 271 Rhythms NetConnections
3549 513 248 Global Crossing
6347 317 238 SAVVIS Communications Corpora
209 557 234 Qwest
7029 246 231 Alltel Information Services,
7046 602 229 UUNET Technologies, Inc.
852 629 213 Telus Advanced Communications
9443 276 212 Primus Telecommunications
4355 245 209 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23279 UNALLOCATED 63.238.4.0/24 209 Qwest
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises
65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23279 UNALLOCATED 216.207.52.0/24 209 Qwest
23279 UNALLOCATED 216.207.53.0/24 209 Qwest
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
96.0.0.0/20 3549 Global Crossing
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.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
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 /8:18 /9:5 /10:8 /11:14 /12:35
/13:88 /14:231 /15:402 /16:7182 /17:1398 /18:2570
/19:7438 /20:6904 /21:4952 /22:7580 /23:9158 /24:61569
/25:222 /26:270 /27:118 /28:102 /29:105 /30:126
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1355 2085 UUNET Technologies, Inc.
1221 1143 1284 Telstra Pty Ltd
702 654 1029 UUNET Technologies, Inc.
7018 647 1238 AT&T
3908 581 849 Supernet, Inc.
4323 498 629 Time Warner Communications, I
1239 470 813 Sprint
690 449 454 Merit Network
7046 415 602 UUNET Technologies, Inc.
1 405 811 BBN Planet
852 381 629 Telus Advanced Communications
3549 373 513 Global Crossing
209 366 557 Qwest
2764 340 385 connect.com.au pty ltd
703 336 416 UUNET Technologies, Inc.
705 322 374 UUNET Technologies, Inc.
9394 317 331 CHINA RAILWAY Internet(CRNET)
7066 307 336 Virginia Polytechnic Institut
4565 286 311 Epoch Networks
2149 283 367 Performance Systems, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:7 9:1 12:490 13:10 15:2
17:6 20:2 24:750 25:1 32:68 38:8
40:6 44:1 57:14 61:312 62:152 63:1904
64:1180 65:1111 66:787 67:57 68:4 80:224
81:7 128:64 129:128 130:23 131:56 132:11
133:3 134:126 135:10 136:314 137:97 138:138
139:49 140:187 141:90 142:83 143:38 144:141
145:11 146:220 147:147 148:138 149:91 150:39
151:46 152:317 153:33 154:1 155:108 156:76
157:118 158:72 159:125 160:27 161:55 162:140
163:104 164:134 165:122 166:220 167:193 168:100
169:52 170:288 171:2 192:5436 193:2267 194:2095
195:795 196:429 198:3723 199:3202 200:2395 201:1
202:3119 203:4574 204:3244 205:2166 206:2565 207:2672
208:2572 209:2813 210:590 211:208 212:876 213:597
214:9 215:18 216:3084 217:462 218:15
End of report
-----
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