Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 13 06:05:06 EDT 2002
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 13 Sep, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114537
Prefixes after maximum aggregation: 74233
Unique aggregates announced to Internet: 54821
Total ASes present in the Internet Routing Table: 13713
Origin-only ASes present in the Internet Routing Table: 11865
Origin ASes announcing only one prefix: 5321
Transit ASes present in the Internet Routing Table: 1848
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: 23
Illegal AS announcements present in the Routing Table: 5
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: 1208978732
Equivalent to 72 /8s, 15 /16s and 141 /24s
Percentage of available address space announced: 32.6
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46861
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18747
Total APNIC prefixes after maximum aggregation: 11428
Prefixes being announced from the APNIC address blocks: 17224
Unique aggregates announced from the APNIC address blocks: 10901
APNIC Region origin ASes present in the Internet Routing Table: 1614
APNIC Region origin ASes announcing only one prefix: 526
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: 97048032
Equivalent to 5 /8s, 200 /16s and 213 /24s
Percentage of available APNIC address space announced: 63.8
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 71347
Total ARIN prefixes after maximum aggregation: 45844
Prefixes being announced from the ARIN address blocks: 50041
Unique aggregates announced from the ARIN address blocks: 15807
ARIN Region origin ASes present in the Internet Routing Table: 7715
ARIN Region origin ASes announcing only one prefix: 2536
ARIN Region transit ASes present in the Internet Routing Table: 738
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 180714176
Equivalent to 10 /8s, 197 /16s and 122 /24s
Percentage of available ARIN address space announced: 67.3
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: 19538
Total RIPE prefixes after maximum aggregation: 14814
Prefixes being announced from the RIPE address blocks: 16151
Unique aggregates announced from the RIPE address blocks: 9963
RIPE Region origin ASes present in the Internet Routing Table: 4012
RIPE Region origin ASes announcing only one prefix: 2176
RIPE Region transit ASes present in the Internet Routing Table: 745
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 117499008
Equivalent to 7 /8s, 0 /16s and 228 /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: 4902
Total LACNIC prefixes after maximum aggregation: 2147
Prefixes being announced from the LACNIC address blocks: 4209
Unique aggregates announced from the LACNIC address blocks: 2617
LACNIC Region origin ASes present in the Internet Routing Table: 316
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11196416
Equivalent to 0 /8s, 170 /16s and 216 /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 1202 1188 884 Telstra Pty Ltd
703 393 367 306 UUNET
2907 360 1832 339 SINET Japan
2764 354 357 325 connect.com.au pty ltd
7474 315 276 211 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 275 20 107 Pakistan Telecom
4755 260 142 73 Videsh Sanchar Nigam Ltd. Aut
4766 250 1824 158 Korea Internet Exchange for "
17676 220 3442 33 XTAGE CORPORATION
4814 215 79 15 China Telecom (Group)
9443 183 57 69 Primus Telecommunications
9583 173 32 5 Satyam Infoway Ltd.,
9768 145 385 74 Korea Telecom
4515 139 102 80 Star Internet Services Ltd.
7657 130 22 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 114 985 105 NTT Communications Corporatio
9498 103 8 22 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1762 9127 1350 UUNET Technologies, Inc.
7018 1312 7192 931 AT&T
3908 1058 1666 508 Supernet, Inc.
1239 840 3178 648 Sprint
852 732 1175 451 Telus Advanced Communications
7843 677 372 262 Adelphia Corp.
1 666 8066 439 GENUITY
7046 614 867 312 UUNET Technologies, Inc.
7132 603 664 143 Southwestern Bell Internet Se
4323 537 435 164 Time Warner Communications, I
690 519 75 326 Merit Network
209 518 2066 349 Qwest
7066 490 204 258 Virginia Polytechnic Institut
2548 443 1102 272 Business Internet, Inc.
3549 417 726 299 Global Crossing
6197 382 613 40 BellSouth Network Solutions,
15290 362 230 178 AT&T Canada IES
2914 360 2025 356 Verio, Inc.
4355 360 287 84 EarthLink, Inc.
6347 346 371 77 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 876 2430 734 UUNET - Commercial IP service
3301 388 907 344 TeliaNet Sweden
3215 293 657 180 France Telecom Transpac
3320 247 1964 213 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 217 783 178 Sonera Solution Autonomous Sy
5400 214 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 146 41 141 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 123 785 115 BTnet UK Regional network
12302 122 17 29 MobiFon S.A.
3246 120 372 113 Song Networks
5511 110 192 88 France Telecom
3233 108 10 9 RNC - Romanian Natioanal R&D
3269 104 658 63 TELECOM ITALIA
8220 104 167 98 COLT Internet - International
2874 103 85 40 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 192 290 110 UniNet S.A. de C.V.
11340 180 7 70 Red Universitaria Nacional
7303 171 27 49 Telecom Argentina Stet-France
11172 166 72 33 Servicios Alestra S.A de C.V
6503 165 207 115 AVANTEL, S.A.
10834 147 92 36 ADVANCE TELECOMUNICACIONES S.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
10620 90 6 27 TVCABLE BOGOTA
1916 73 409 40 Fundacao de Amparo a Pesquisa
15034 73 6 29 TIBA SA
11992 71 7 29 Integrated Systems
2277 69 16 3 ECUANET - CORPORACION ECUATOR
7984 69 27 43 Global One Colombia
15311 69 25 32 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
4926 64 4 52 Telintar S.A.
7993 59 9 30 Global One Chile
8065 59 6 16 Empresas Publicas de Medellin
16528 57 5 35 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1058 550 Supernet, Inc.
7132 603 460 Southwestern Bell Internet Se
7843 677 415 Adelphia Corp.
7018 1312 381 AT&T
4323 537 373 Time Warner Communications, I
6197 382 342 BellSouth Network Solutions,
1221 1202 318 Telstra Pty Ltd
7046 614 302 UUNET Technologies, Inc.
852 732 281 Telus Advanced Communications
4355 360 276 EarthLink, Inc.
6347 346 269 SAVVIS Communications Corpora
4151 283 268 USDA
18566 270 266 Covad Communications
376 342 233 Reseau Interordinateurs Scien
7066 490 232 Virginia Polytechnic Institut
1 666 227 GENUITY
4814 215 200 China Telecom (Group)
1580 212 200 ANOSCEUR
4134 292 196 Data Communications Bureau
11492 204 196 Cable One
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65502 PRIVATE 194.59.34.0/23 12312 Tiscali Germany ASN
65502 PRIVATE 194.127.132.0/24 12312 Tiscali Germany ASN
65502 PRIVATE 194.127.133.0/24 12312 Tiscali Germany ASN
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
24997 UNALLOCATED 217.11.160.0/20 8342 Rostelecom Internet
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 /9:6 /10:7 /11:12 /12:36
/13:88 /14:236 /15:425 /16:7266 /17:1490 /18:2689
/19:7853 /20:7517 /21:5251 /22:8025 /23:9742 /24:62995
/25:204 /26:234 /27:141 /28:83 /29:50 /30:109
/31:1 /32:57
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 627 1058 Supernet, Inc.
702 532 876 UUNET - Commercial IP service
701 494 1762 UUNET Technologies, Inc.
7843 480 677 Adelphia Corp.
690 465 519 Merit Network
7018 395 1312 AT&T
7066 388 490 Virginia Polytechnic Institut
7046 297 614 UUNET Technologies, Inc.
6197 266 382 BellSouth Network Solutions,
18566 266 270 Covad Communications
6198 243 315 BellSouth Network Solutions,
1239 237 840 Sprint
3301 230 388 TeliaNet Sweden
3215 225 293 France Telecom Transpac
4355 206 360 EarthLink, Inc.
11492 200 204 Cable One
1580 199 212 ANOSCEUR
209 191 518 Qwest
5400 188 214 BT Ignite European Backbone
3320 178 247 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:548 13:10 15:2 17:7 20:4
24:849 25:1 32:41 38:7 40:6 44:1
55:1 57:14 61:333 62:243 63:1831 64:1240
65:1489 66:1130 67:101 68:93 80:276 81:52
128:65 129:155 130:21 131:55 132:11 133:2
134:130 135:9 136:574 137:94 138:152 139:69
140:158 141:72 142:67 143:50 144:141 145:17
146:260 147:141 148:248 149:77 150:41 151:57
152:310 153:37 154:11 155:104 156:70 157:110
158:65 159:137 160:49 161:75 162:128 163:87
164:261 165:122 166:105 167:267 168:121 169:61
170:170 171:3 192:5464 193:2347 194:2022 195:819
196:425 198:3579 199:3088 200:2626 202:3346 203:4808
204:3263 205:2112 206:2400 207:2448 208:2555 209:2547
210:626 211:244 212:879 213:720 214:8 215:19
216:2878 217:486 218:46 219:1
End of report
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