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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 23 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114611
Prefixes after maximum aggregation: 74279
Unique aggregates announced to Internet: 55119
Total ASes present in the Internet Routing Table: 13599
Origin-only ASes present in the Internet Routing Table: 11764
Origin ASes announcing only one prefix: 5242
Transit ASes present in the Internet Routing Table: 1835
Transit-only ASes present in the Internet Routing Table: 57
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1184116636
Equivalent to 70 /8s, 148 /16s and 47 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46611
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18938
Total APNIC prefixes after maximum aggregation: 11244
Prefixes being announced from the APNIC address blocks: 17468
Unique aggregates announced from the APNIC address blocks: 10669
APNIC Region origin ASes present in the Internet Routing Table: 1589
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 93320032
Equivalent to 5 /8s, 143 /16s and 243 /24s
Percentage of available APNIC address space announced: 61.4
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76288
Total ARIN prefixes after maximum aggregation: 48338
Prefixes being announced from the ARIN address blocks: 54205
Unique aggregates announced from the ARIN address blocks: 18196
ARIN Region origin ASes present in the Internet Routing Table: 7991
ARIN Region origin ASes announcing only one prefix: 2578
ARIN Region transit ASes present in the Internet Routing Table: 804
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 191313008
Equivalent to 11 /8s, 103 /16s and 52 /24s
Percentage of available ARIN address space announced: 67.1
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
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19385
Total RIPE prefixes after maximum aggregation: 14697
Prefixes being announced from the RIPE address blocks: 16103
Unique aggregates announced from the RIPE address blocks: 10606
RIPE Region origin ASes present in the Internet Routing Table: 3962
RIPE Region origin ASes announcing only one prefix: 2145
RIPE Region transit ASes present in the Internet Routing Table: 742
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113397760
Equivalent to 6 /8s, 194 /16s and 80 /24s
Percentage of available RIPE address space announced: 75.1
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 1208 1189 886 Telstra Pty Ltd
4538 577 1330 18 China Education and Research
703 412 376 321 UUNET
2907 365 1833 343 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 317 292 212 Optus Communications Pty Ltd
4134 301 2222 96 Data Communications Bureau
4755 282 142 74 Videsh Sanchar Nigam Ltd. Aut
17557 272 20 96 Pakistan Telecom
4766 250 1507 157 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 190 2962 35 XTAGE CORPORATION
9443 178 57 66 Primus Telecommunications
9583 171 32 5 Satyam Infoway Ltd.,
7539 146 188 141 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 131 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4621 113 11 64 UNINET-TH
4713 113 993 104 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 895 2430 751 UUNET - Commercial IP service
3301 399 924 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 291 641 180 France Telecom Transpac
3320 246 1964 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 213 85 101 BT Ignite European Backbone
1257 210 444 205 SWIPnet Swedish IP Network
719 185 306 129 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 145 41 141 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 126 18 33 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 108 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
2874 102 85 39 Global One Services AB
8220 100 166 96 COLT Internet - International
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1788 9110 1362 UUNET Technologies, Inc.
7018 1295 7213 924 AT&T
3908 1019 1660 496 Supernet, Inc.
1239 821 3192 644 Sprint
852 731 1175 451 Telus Advanced Communications
1 670 8039 431 GENUITY
7843 656 371 273 Adelphia Corp.
7046 615 882 318 UUNET Technologies, Inc.
7132 594 664 137 Southwestern Bell Internet Se
4323 551 434 172 Time Warner Communications, I
690 519 75 326 Merit Network
209 509 2074 346 Qwest
7066 489 203 256 Virginia Polytechnic Institut
2548 459 1145 272 Business Internet, Inc.
3549 421 726 302 Global Crossing
15290 373 249 188 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 359 2042 359 Verio, Inc.
6347 347 370 76 SAVVIS Communications Corpora
376 340 391 107 Reseau Interordinateurs Scien
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 577 559 China Education and Research
3908 1019 523 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
7843 656 383 Adelphia Corp.
4323 551 379 Time Warner Communications, I
7018 1295 371 AT&T
1221 1208 322 Telstra Pty Ltd
7046 615 297 UUNET Technologies, Inc.
4151 305 289 USDA
852 731 280 Telus Advanced Communications
6347 347 271 SAVVIS Communications Corpora
4355 340 268 EarthLink, Inc.
18566 260 256 Covad Communications
1 670 239 GENUITY
7066 489 233 Virginia Polytechnic Institut
376 340 233 Reseau Interordinateurs Scien
4814 231 217 China Telecom (Group)
4755 282 208 Videsh Sanchar Nigam Ltd. Aut
4134 301 205 Data Communications Bureau
1580 212 200 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:6 /10:7 /11:12 /12:37
/13:86 /14:235 /15:424 /16:7306 /17:1482 /18:2678
/19:7808 /20:7596 /21:5291 /22:8015 /23:9696 /24:63175
/25:208 /26:192 /27:109 /28:77 /29:41 /30:76
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 601 1019 Supernet, Inc.
702 546 895 UUNET - Commercial IP service
701 496 1788 UUNET Technologies, Inc.
690 465 519 Merit Network
7843 456 656 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 385 1295 AT&T
7046 290 615 UUNET Technologies, Inc.
6197 263 362 BellSouth Network Solutions,
18566 256 260 Covad Communications
6198 242 318 BellSouth Network Solutions,
3301 237 399 TeliaNet Sweden
1239 224 821 Sprint
3215 223 291 France Telecom Transpac
1580 199 212 ANOSCEUR
4355 195 340 EarthLink, Inc.
4323 190 551 Time Warner Communications, I
209 187 509 Qwest
5400 187 213 BT Ignite European Backbone
4538 186 577 China Education and Research
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:543 13:10 15:2 17:6
20:4 24:818 25:1 32:41 38:8 40:6
44:1 55:1 57:14 61:317 62:237 63:1852
64:1234 65:1455 66:1049 67:96 68:92 80:262
81:45 128:65 129:157 130:21 131:55 132:11
133:2 134:124 135:9 136:502 137:96 138:147
139:67 140:188 141:73 142:68 143:50 144:139
145:17 146:258 147:142 148:249 149:80 150:41
151:57 152:266 153:37 154:11 155:116 156:71
157:114 158:67 159:140 160:20 161:73 162:124
163:87 164:264 165:127 166:103 167:265 168:120
169:62 170:192 171:3 192:5483 193:2370 194:2083
195:814 196:415 198:3671 199:3128 200:2612 202:3336
203:4731 204:3238 205:2150 206:2512 207:2498 208:2595
209:2693 210:611 211:238 212:880 213:722 214:8
215:20 216:2856 217:498 218:34 219:1
End of report
-----
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