Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 20 06:05:01 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 20 Sep, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114692
Prefixes after maximum aggregation: 74114
Unique aggregates announced to Internet: 55245
Total ASes present in the Internet Routing Table: 13774
Origin-only ASes present in the Internet Routing Table: 11914
Origin ASes announcing only one prefix: 5352
Transit ASes present in the Internet Routing Table: 1860
Transit-only ASes present in the Internet Routing Table: 62
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1189119916
Equivalent to 70 /8s, 224 /16s and 135 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47095
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18750
Total APNIC prefixes after maximum aggregation: 11397
Prefixes being announced from the APNIC address blocks: 17261
Unique aggregates announced from the APNIC address blocks: 10929
APNIC Region origin ASes present in the Internet Routing Table: 1617
APNIC Region origin ASes announcing only one prefix: 531
APNIC Region transit ASes present in the Internet Routing Table: 279
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 97317856
Equivalent to 5 /8s, 204 /16s and 243 /24s
Percentage of available APNIC address space announced: 64.0
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: 71523
Total ARIN prefixes after maximum aggregation: 45806
Prefixes being announced from the ARIN address blocks: 50330
Unique aggregates announced from the ARIN address blocks: 15470
ARIN Region origin ASes present in the Internet Routing Table: 7743
ARIN Region origin ASes announcing only one prefix: 2547
ARIN Region transit ASes present in the Internet Routing Table: 743
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 181080384
Equivalent to 10 /8s, 203 /16s and 17 /24s
Percentage of available ARIN address space announced: 67.5
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: 19553
Total RIPE prefixes after maximum aggregation: 14816
Prefixes being announced from the RIPE address blocks: 16175
Unique aggregates announced from the RIPE address blocks: 10715
RIPE Region origin ASes present in the Internet Routing Table: 4039
RIPE Region origin ASes announcing only one prefix: 2190
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: 113790080
Equivalent to 6 /8s, 200 /16s and 76 /24s
Percentage of available RIPE address space announced: 75.4
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: 4858
Total LACNIC prefixes after maximum aggregation: 2095
Prefixes being announced from the LACNIC address blocks: 4207
Unique aggregates announced from the LACNIC address blocks: 2631
LACNIC Region origin ASes present in the Internet Routing Table: 315
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11206656
Equivalent to 0 /8s, 171 /16s and 0 /24s
Percentage of available LACNIC address space announced: 66.8
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 1196 1187 881 Telstra Pty Ltd
703 392 367 307 UUNET
2907 361 1832 340 SINET Japan
2764 348 357 321 connect.com.au pty ltd
7474 306 275 206 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 283 21 111 Pakistan Telecom
4755 260 142 75 Videsh Sanchar Nigam Ltd. Aut
4766 248 1792 156 Korea Internet Exchange for "
4814 221 79 15 China Telecom (Group)
17676 220 3442 29 XTAGE CORPORATION
9443 184 57 70 Primus Telecommunications
9583 175 32 5 Satyam Infoway Ltd.,
9768 145 385 74 Korea Telecom
4515 138 102 79 Star Internet Services Ltd.
7657 128 22 89 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 116 1049 105 NTT Communications Corporatio
9498 102 8 23 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1798 9246 1295 UUNET Technologies, Inc.
7018 1318 7193 934 AT&T
3908 1045 1652 507 Supernet, Inc.
1239 853 3194 656 Sprint
852 743 1160 455 Telus Advanced Communications
7843 665 372 250 Adelphia Corp.
1 656 8088 433 GENUITY
7132 601 654 141 Southwestern Bell Internet Se
7046 590 863 313 UUNET Technologies, Inc.
4323 527 435 165 Time Warner Communications, I
690 519 75 326 Merit Network
209 514 2066 347 Qwest
7066 490 204 258 Virginia Polytechnic Institut
2548 444 1118 272 Business Internet, Inc.
3549 417 727 300 Global Crossing
6197 381 597 39 BellSouth Network Solutions,
4355 363 289 87 EarthLink, Inc.
15290 363 230 180 AT&T Canada IES
2914 362 2026 357 Verio, Inc.
6347 346 371 78 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 878 2414 732 UUNET - Commercial IP service
3301 387 907 343 TeliaNet Sweden
3215 292 673 179 France Telecom Transpac
3320 249 1965 215 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 215 783 178 Sonera Solution Autonomous Sy
5400 214 86 101 BT Ignite European Backbone
1257 202 444 199 SWIPnet Swedish IP Network
719 189 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 147 41 142 Romania Data Systems S.A.
3303 143 532 142 Swisscom Ltd
2856 125 785 115 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 123 373 116 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 189 305 106 UniNet S.A. de C.V.
7303 171 27 49 Telecom Argentina Stet-France
11172 167 88 34 Servicios Alestra S.A de C.V
6503 161 191 116 AVANTEL, S.A.
11340 147 4 48 Red Universitaria Nacional
10834 145 91 34 ADVANCE TELECOMUNICACIONES S.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
6140 95 52 23 ImpSat USA, Inc.
10620 93 6 29 TVCABLE BOGOTA
15034 76 6 31 TIBA SA
1916 72 409 40 Fundacao de Amparo a Pesquisa
11992 72 7 29 Integrated Systems
2277 69 16 3 ECUANET - CORPORACION ECUATOR
7984 69 27 43 Global One Colombia
4270 68 18 10 Red de Interconexion Universi
15311 68 24 31 Telefonica Empresas
4926 65 4 53 Telintar S.A.
8065 59 6 16 Empresas Publicas de Medellin
7993 58 9 30 Global One Chile
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1045 538 Supernet, Inc.
7132 601 460 Southwestern Bell Internet Se
7843 665 415 Adelphia Corp.
7018 1318 384 AT&T
4323 527 362 Time Warner Communications, I
6197 381 342 BellSouth Network Solutions,
1221 1196 315 Telstra Pty Ltd
852 743 288 Telus Advanced Communications
7046 590 277 UUNET Technologies, Inc.
4355 363 276 EarthLink, Inc.
4151 285 270 USDA
6347 346 268 SAVVIS Communications Corpora
18566 272 268 Covad Communications
376 343 233 Reseau Interordinateurs Scien
7066 490 232 Virginia Polytechnic Institut
1 656 223 GENUITY
4814 221 206 China Telecom (Group)
1580 211 199 ANOSCEUR
11492 209 198 Cable One
1239 853 197 Sprint
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
578 UNALLOCATED 199.243.116.0/22 577 Bell Advanced Commun
64562 PRIVATE 203.152.128.0/21 11919 Loral Orion Services
64562 PRIVATE 203.152.136.0/21 11919 Loral Orion Services
65011 PRIVATE 207.8.204.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.8.227.0/24 4231 You Tools Corporatio
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
578 UNALLOCATED 207.61.186.0/24 577 Bell Advanced Commun
65506 PRIVATE 207.106.30.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.58.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.90.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.122.0/24 4231 You Tools Corporatio
578 UNALLOCATED 216.209.156.0/24 577 Bell Advanced Commun
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
192.58.92.0/24 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 /12:36
/13:89 /14:236 /15:428 /16:7268 /17:1485 /18:2685
/19:7843 /20:7498 /21:5258 /22:8059 /23:9726 /24:63159
/25:204 /26:243 /27:137 /28:83 /29:48 /30:111
/31:0 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 615 1045 Supernet, Inc.
702 538 878 UUNET - Commercial IP service
701 492 1798 UUNET Technologies, Inc.
7843 469 665 Adelphia Corp.
690 465 519 Merit Network
7018 399 1318 AT&T
7066 388 490 Virginia Polytechnic Institut
7046 279 590 UUNET Technologies, Inc.
18566 268 272 Covad Communications
6197 266 381 BellSouth Network Solutions,
6198 243 312 BellSouth Network Solutions,
1239 240 853 Sprint
3301 229 387 TeliaNet Sweden
3215 224 292 France Telecom Transpac
4355 205 363 EarthLink, Inc.
11492 205 209 Cable One
1580 198 211 ANOSCEUR
5400 188 214 BT Ignite European Backbone
209 187 514 Qwest
3320 180 249 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:553 13:10 15:2 17:7 20:4
24:821 25:1 32:41 38:7 40:6 44:1
55:1 57:14 61:337 62:235 63:1844 64:1273
65:1504 66:1181 67:105 68:97 80:281 81:53
128:59 129:157 130:21 131:55 132:11 133:2
134:129 135:9 136:575 137:94 138:157 139:69
140:155 141:70 142:70 143:51 144:141 145:17
146:260 147:142 148:248 149:79 150:42 151:57
152:299 153:37 154:10 155:101 156:102 157:110
158:65 159:137 160:24 161:74 162:116 163:86
164:261 165:125 166:105 167:267 168:126 169:59
170:175 171:3 192:5382 193:2358 194:2024 195:800
196:431 198:3560 199:3084 200:2622 202:3376 203:4803
204:3271 205:2143 206:2408 207:2462 208:2559 209:2611
210:606 211:245 212:882 213:735 214:8 215:19
216:2896 217:495 218:46 219:2
End of report
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