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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 06 Sep, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114501
Prefixes after maximum aggregation: 74294
Unique aggregates announced to Internet: 54850
Total ASes present in the Internet Routing Table: 13650
Origin-only ASes present in the Internet Routing Table: 11815
Origin ASes announcing only one prefix: 5300
Transit ASes present in the Internet Routing Table: 1835
Transit-only ASes present in the Internet Routing Table: 56
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: 2
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: 1207827004
Equivalent to 71 /8s, 253 /16s and 250 /24s
Percentage of available address space announced: 32.6
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46777
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18510
Total APNIC prefixes after maximum aggregation: 11375
Prefixes being announced from the APNIC address blocks: 17011
Unique aggregates announced from the APNIC address blocks: 10830
APNIC Region origin ASes present in the Internet Routing Table: 1601
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 273
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 96131296
Equivalent to 5 /8s, 186 /16s and 216 /24s
Percentage of available APNIC address space announced: 63.2
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: 71511
Total ARIN prefixes after maximum aggregation: 45997
Prefixes being announced from the ARIN address blocks: 50144
Unique aggregates announced from the ARIN address blocks: 15874
ARIN Region origin ASes present in the Internet Routing Table: 7692
ARIN Region origin ASes announcing only one prefix: 2537
ARIN Region transit ASes present in the Internet Routing Table: 731
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 180457168
Equivalent to 10 /8s, 193 /16s and 142 /24s
Percentage of available ARIN address space announced: 67.2
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 - 23551
25600 - 26591
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19595
Total RIPE prefixes after maximum aggregation: 14791
Prefixes being announced from the RIPE address blocks: 16186
Unique aggregates announced from the RIPE address blocks: 9942
RIPE Region origin ASes present in the Internet Routing Table: 3987
RIPE Region origin ASes announcing only one prefix: 2160
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: 16
Number of RIPE addresses announced to Internet: 117451392
Equivalent to 7 /8s, 0 /16s and 42 /24s
Percentage of available RIPE address space announced: 77.8
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4884
Total LACNIC prefixes after maximum aggregation: 2131
Prefixes being announced from the LACNIC address blocks: 4200
Unique aggregates announced from the LACNIC address blocks: 2636
LACNIC Region origin ASes present in the Internet Routing Table: 315
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 6.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11193600
Equivalent to 0 /8s, 170 /16s and 205 /24s
Percentage of available LACNIC address space announced: 66.7
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1206 1188 885 Telstra Pty Ltd
703 393 368 306 UUNET
2907 359 1800 338 SINET Japan
2764 354 357 325 connect.com.au pty ltd
7474 316 292 212 Optus Communications Pty Ltd
4134 290 2220 95 Data Communications Bureau
17557 281 21 111 Pakistan Telecom
4766 253 1827 160 Korea Internet Exchange for "
4755 241 142 73 Videsh Sanchar Nigam Ltd. Aut
4814 214 79 14 China Telecom (Group)
17676 212 3314 34 XTAGE CORPORATION
9443 183 57 69 Primus Telecommunications
9583 175 32 5 Satyam Infoway Ltd.,
9768 145 385 74 Korea Telecom
4515 139 102 80 Star Internet Services Ltd.
7657 129 22 89 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1001 106 NTT Communications Corporatio
9498 101 8 22 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1755 9109 1347 UUNET Technologies, Inc.
7018 1307 7204 930 AT&T
3908 1047 1665 502 Supernet, Inc.
1239 834 3225 647 Sprint
852 731 1175 452 Telus Advanced Communications
1 674 8057 438 GENUITY
7843 653 372 251 Adelphia Corp.
7046 603 865 310 UUNET Technologies, Inc.
7132 602 664 143 Southwestern Bell Internet Se
4323 555 435 171 Time Warner Communications, I
209 520 2066 349 Qwest
690 519 75 326 Merit Network
7066 498 204 258 Virginia Polytechnic Institut
2548 442 1113 271 Business Internet, Inc.
3549 418 726 300 Global Crossing
6197 381 613 39 BellSouth Network Solutions,
15290 363 230 179 AT&T Canada IES
4355 358 287 84 EarthLink, Inc.
2914 356 2024 356 Verio, Inc.
6347 345 371 77 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 886 2427 743 UUNET - Commercial IP service
3301 391 907 344 TeliaNet Sweden
5515 319 783 179 Sonera Solution Autonomous Sy
3215 291 641 179 France Telecom Transpac
3320 247 1964 213 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5400 213 85 101 BT Ignite European Backbone
1257 205 444 202 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 147 41 142 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 122 17 29 MobiFon S.A.
3246 121 373 114 Song Networks
5511 110 192 88 France Telecom
3233 107 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
8220 103 167 97 COLT Internet - International
2874 102 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 194 306 110 UniNet S.A. de C.V.
11340 178 7 69 Red Universitaria Nacional
7303 171 27 49 Telecom Argentina Stet-France
6503 165 191 115 AVANTEL, S.A.
11172 164 72 33 Servicios Alestra S.A de C.V
10834 146 91 35 ADVANCE TELECOMUNICACIONES S.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
10620 85 5 25 TVCABLE BOGOTA
1916 74 425 41 Fundacao de Amparo a Pesquisa
4270 73 18 10 Red de Interconexion Universi
15034 72 6 29 TIBA SA
11992 71 23 29 Integrated Systems
2277 69 16 3 ECUANET - CORPORACION ECUATOR
7984 69 27 43 Global One Colombia
15311 69 25 32 Telefonica Empresas
6535 67 4 14 Chilesat Servicios Empresari
4926 65 4 53 Telintar S.A.
7993 59 9 30 Global One Chile
16528 59 5 32 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1047 545 Supernet, Inc.
7132 602 459 Southwestern Bell Internet Se
7843 653 402 Adelphia Corp.
4323 555 384 Time Warner Communications, I
7018 1307 377 AT&T
6197 381 342 BellSouth Network Solutions,
1221 1206 321 Telstra Pty Ltd
7046 603 293 UUNET Technologies, Inc.
4151 303 288 USDA
852 731 279 Telus Advanced Communications
4355 358 274 EarthLink, Inc.
6347 345 268 SAVVIS Communications Corpora
18566 266 262 Covad Communications
7066 498 240 Virginia Polytechnic Institut
1 674 236 GENUITY
376 341 230 Reseau Interordinateurs Scien
4814 214 200 China Telecom (Group)
1580 210 199 ANOSCEUR
4134 290 195 Data Communications Bureau
690 519 193 Merit Network
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65004 PRIVATE 192.231.93.0/24 5786 University of Puerto
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 /8:20 /9:8 /10:7 /11:12 /12:37
/13:88 /14:235 /15:423 /16:7251 /17:1484 /18:2680
/19:7816 /20:7478 /21:5213 /22:8023 /23:9743 /24:63123
/25:202 /26:231 /27:135 /28:81 /29:45 /30:103
/31:1 /32:62
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 617 1047 Supernet, Inc.
702 540 886 UUNET - Commercial IP service
701 493 1755 UUNET Technologies, Inc.
690 465 519 Merit Network
7843 452 653 Adelphia Corp.
7018 388 1307 AT&T
7066 388 498 Virginia Polytechnic Institut
7046 288 603 UUNET Technologies, Inc.
6197 265 381 BellSouth Network Solutions,
18566 262 266 Covad Communications
6198 242 312 BellSouth Network Solutions,
1239 232 834 Sprint
3301 232 391 TeliaNet Sweden
3215 224 291 France Telecom Transpac
4355 206 358 EarthLink, Inc.
1580 198 210 ANOSCEUR
11492 194 198 Cable One
209 193 520 Qwest
5400 187 213 BT Ignite European Backbone
4323 185 555 Time Warner Communications, I
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:549 13:10 15:2 17:7 20:4
24:802 25:1 32:41 38:7 40:6 44:1
55:1 57:14 61:324 62:244 63:1831 64:1225
65:1476 66:1106 67:99 68:91 80:270 81:54
128:67 129:159 130:21 131:55 132:11 133:2
134:124 135:9 136:578 137:95 138:148 139:69
140:160 141:71 142:70 143:50 144:139 145:17
146:256 147:142 148:248 149:77 150:41 151:59
152:265 153:36 154:11 155:107 156:70 157:112
158:65 159:140 160:45 161:73 162:124 163:89
164:255 165:124 166:104 167:267 168:120 169:61
170:182 171:3 192:5476 193:2375 194:2068 195:821
196:418 198:3684 199:3107 200:2623 202:3289 203:4754
204:3275 205:2126 206:2498 207:2471 208:2567 209:2608
210:622 211:242 212:887 213:705 214:8 215:19
216:2872 217:480 218:40 219:1
End of report
-----
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