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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 25 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116434
Prefixes after maximum aggregation: 74749
Unique aggregates announced to Internet: 55706
Total ASes present in the Internet Routing Table: 13962
Origin-only ASes present in the Internet Routing Table: 12107
Origin ASes announcing only one prefix: 5433
Transit ASes present in the Internet Routing Table: 1855
Transit-only ASes present in the Internet Routing Table: 58
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: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1180885064
Equivalent to 70 /8s, 98 /16s and 224 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48540
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19018
Total APNIC prefixes after maximum aggregation: 11461
Prefixes being announced from the APNIC address blocks: 17517
Unique aggregates announced from the APNIC address blocks: 11098
APNIC Region origin ASes present in the Internet Routing Table: 1629
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 99485600
Equivalent to 5 /8s, 238 /16s and 7 /24s
Percentage of available APNIC address space announced: 65.4
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: 72955
Total ARIN prefixes after maximum aggregation: 46335
Prefixes being announced from the ARIN address blocks: 51381
Unique aggregates announced from the ARIN address blocks: 15434
ARIN Region origin ASes present in the Internet Routing Table: 7852
ARIN Region origin ASes announcing only one prefix: 2602
ARIN Region transit ASes present in the Internet Routing Table: 744
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 182036960
Equivalent to 10 /8s, 217 /16s and 169 /24s
Percentage of available ARIN address space announced: 67.8
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 - 23551
25600 - 26591, 26624 - 27647
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: 19662
Total RIPE prefixes after maximum aggregation: 14884
Prefixes being announced from the RIPE address blocks: 16348
Unique aggregates announced from the RIPE address blocks: 10971
RIPE Region origin ASes present in the Internet Routing Table: 4107
RIPE Region origin ASes announcing only one prefix: 2231
RIPE Region transit ASes present in the Internet Routing Table: 755
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 118330816
Equivalent to 7 /8s, 13 /16s and 149 /24s
Percentage of available RIPE address space announced: 78.4
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: 4793
Total LACNIC prefixes after maximum aggregation: 2069
Prefixes being announced from the LACNIC address blocks: 4118
Unique aggregates announced from the LACNIC address blocks: 2656
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11565056
Equivalent to 0 /8s, 176 /16s and 120 /24s
Percentage of available LACNIC address space announced: 68.9
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 1189 1169 867 Telstra Pty Ltd
703 395 368 313 UUNET
2907 350 1751 330 SINET Japan
2764 335 356 307 connect.com.au pty ltd
17557 314 23 117 Pakistan Telecom
4134 295 2284 99 Data Communications Bureau
7474 294 275 201 Optus Communications Pty Ltd
4755 277 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 232 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 185 57 73 Primus Telecommunications
9583 160 32 5 Satyam Infoway Ltd.,
4515 139 102 77 Star Internet Services Ltd.
9768 136 385 75 Korea Telecom
4716 129 736 123 TTnet
7657 128 23 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 112 1044 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1777 9140 1264 UUNET Technologies, Inc.
7018 1358 7187 946 AT&T
3908 1075 1668 512 Supernet, Inc.
1239 887 3186 662 Sprint
7843 756 373 318 Adelphia Corp.
852 737 1146 457 Telus Advanced Communications
1 659 8042 434 GENUITY
7046 589 892 291 UUNET Technologies, Inc.
209 577 2064 336 Qwest
4323 519 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
2828 472 598 102 XO Communications
705 444 135 204 UUNET Technologies, Inc.
7132 415 673 70 Southwestern Bell Internet Se
3549 410 726 296 Global Crossing
2548 401 1115 244 Business Internet, Inc.
6197 399 601 40 BellSouth Network Solutions,
6198 397 180 197 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 370 2022 363 Verio, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 872 2374 724 UUNET - Commercial IP service
3301 382 1164 335 TeliaNet Sweden
3215 309 789 172 France Telecom Transpac
3320 243 1964 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 211 783 176 Sonera Solution Autonomous Sy
1257 207 414 202 SWIPnet Swedish IP Network
5400 200 83 95 BT Ignite European Backbone
719 190 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 158 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
12302 121 17 28 MobiFon S.A.
3246 120 373 115 Song Networks
8220 114 168 105 COLT Internet - International
3233 106 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
5511 102 192 85 France Telecom
2874 99 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 249 114 58 ImpSat USA, Inc.
8151 209 330 110 UniNet S.A. de C.V.
7303 180 28 50 Telecom Argentina Stet-France
11172 167 72 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 101 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11340 80 2 25 Red Universitaria Nacional
11992 80 8 30 Integrated Systems
15311 76 26 32 Telefonica Empresas
1916 74 425 41 Fundacao de Amparo a Pesquisa
4270 67 18 10 Red de Interconexion Universi
4926 63 4 51 Telintar S.A.
7984 63 27 41 Global One Colombia
2277 62 16 3 ECUANET - CORPORACION ECUATOR
15034 60 5 32 TIBA SA
7927 59 5 40 Global One Venezuela
8065 59 6 15 Empresas Publicas de Medellin
6535 54 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1075 563 Supernet, Inc.
7843 756 438 Adelphia Corp.
7018 1358 412 AT&T
2828 472 370 XO Communications
6197 399 359 BellSouth Network Solutions,
4323 519 355 Time Warner Communications, I
7132 415 345 Southwestern Bell Internet Se
1221 1189 322 Telstra Pty Ltd
18566 326 322 Covad Communications
1580 320 307 ANOSCEUR
7046 589 298 UUNET Technologies, Inc.
852 737 280 Telus Advanced Communications
6347 351 278 SAVVIS Communications Corpora
4355 385 276 EarthLink, Inc.
4151 292 276 USDA
209 577 241 Qwest
705 444 240 UUNET Technologies, Inc.
376 334 231 Reseau Interordinateurs Scien
1239 887 225 Sprint
1 659 225 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:238 /15:426 /16:7291 /17:1513 /18:2742
/19:7909 /20:7505 /21:5342 /22:8192 /23:9957 /24:64398
/25:177 /26:205 /27:103 /28:78 /29:54 /30:95
/31:1 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 637 1075 Supernet, Inc.
7843 569 756 Adelphia Corp.
702 540 872 UUNET - Commercial IP service
701 496 1777 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 437 1358 AT&T
2828 370 472 XO Communications
18566 320 326 Covad Communications
6198 313 397 BellSouth Network Solutions,
1580 306 320 ANOSCEUR
6197 282 399 BellSouth Network Solutions,
7046 275 589 UUNET Technologies, Inc.
1239 271 887 Sprint
209 260 577 Qwest
3215 234 309 France Telecom Transpac
3301 228 382 TeliaNet Sweden
11492 224 229 Cable One
4355 218 385 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
19029 192 220 New Edge Networks
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:578 13:10 15:4 17:6 20:3
24:899 25:1 32:42 38:26 40:11 44:1
55:1 57:17 61:369 62:238 63:1905 64:1351
65:1609 66:1209 67:117 68:176 69:16 80:287
81:60 128:129 129:105 130:18 131:63 132:9
133:2 134:140 135:7 136:406 137:108 138:205
139:71 140:156 141:77 142:82 143:46 144:148
145:18 146:235 147:225 148:255 149:76 150:41
151:89 152:294 153:36 154:8 155:106 156:103
157:106 158:76 159:149 160:20 161:74 162:126
163:85 164:82 165:125 166:104 167:300 168:302
169:60 170:217 171:6 192:5425 193:2380 194:2005
195:837 196:431 198:3636 199:3100 200:2504 202:3512
203:4851 204:3280 205:2112 206:2369 207:2467 208:2551
209:2643 210:604 211:249 212:813 213:778 214:10
215:19 216:3233 217:505 218:50 219:3
End of report
-----
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