[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Nov 28 13:06:23 EST 2003
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
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 29 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130661
Prefixes after maximum aggregation: 80578
Unique aggregates announced to Internet: 62595
Total ASes present in the Internet Routing Table: 16234
Origin-only ASes present in the Internet Routing Table: 14091
Origin ASes announcing only one prefix: 6463
Transit ASes present in the Internet Routing Table: 2143
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1265043940
Equivalent to 75 /8s, 103 /16s and 9 /24s
Percentage of available address space announced: 34.1
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57765
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23775
Total APNIC prefixes after maximum aggregation: 12960
Prefixes being announced from the APNIC address blocks: 22184
Unique aggregates announced from the APNIC address blocks: 12582
APNIC Region origin ASes present in the Internet Routing Table: 1948
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 131149312
Equivalent to 7 /8s, 209 /16s and 46 /24s
Percentage of available APNIC address space announced: 70.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77186
Total ARIN prefixes after maximum aggregation: 47845
Prefixes being announced from the ARIN address blocks: 59845
Unique aggregates announced from the ARIN address blocks: 20706
ARIN Region origin ASes present in the Internet Routing Table: 8768
ARIN Region origin ASes announcing only one prefix: 3062
ARIN Region transit ASes present in the Internet Routing Table: 830
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 210583200
Equivalent to 12 /8s, 141 /16s and 62 /24s
Percentage of available ARIN address space announced: 73.8
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, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23020
Total RIPE prefixes after maximum aggregation: 16863
Prefixes being announced from the RIPE address blocks: 19864
Unique aggregates announced from the RIPE address blocks: 13272
RIPE Region origin ASes present in the Internet Routing Table: 4993
RIPE Region origin ASes announcing only one prefix: 2686
RIPE Region transit ASes present in the Internet Routing Table: 886
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 142593152
Equivalent to 8 /8s, 127 /16s and 204 /24s
Percentage of available RIPE address space announced: 65.4
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, 28672 - 29695
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5561
Total LACNIC prefixes after maximum aggregation: 2206
Prefixes being announced from the LACNIC address blocks: 5057
Unique aggregates announced from the LACNIC address blocks: 3062
LACNIC Region origin ASes present in the Internet Routing Table: 364
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 14
Number of LACNIC addresses announced to Internet: 13396992
Equivalent to 0 /8s, 204 /16s and 108 /24s
Percentage of available LACNIC address space announced: 39.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1117
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 722
Unique aggregates announced from the AfriNIC address blocks: 555
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1753088
Equivalent to 0 /8s, 26 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 10.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 959 1119 679 Telstra Pty Ltd
4134 407 2456 110 Data Communications Bureau
2907 369 1863 345 SINET Japan
4755 345 131 56 Videsh Sanchar Nigam Ltd. Aut
9443 336 71 81 Primus Telecommunications
703 322 356 255 UUNET
17557 300 21 153 Pakistan Telecom
17676 283 4188 33 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
9583 267 44 11 Satyam Infoway Ltd.,
4766 264 2896 191 Korea Internet Exchange for "
7474 262 306 213 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9929 217 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 205 68 118 COMindico Australia
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 143 60 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1429 8667 986 UUNET Technologies, Inc.
7018 1376 7002 951 AT&T
1239 951 3093 667 Sprint
209 861 3449 537 Qwest
6197 765 438 214 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 710 10890 563 Level 3 Communications, LLC
4323 675 608 203 Time Warner Communications, I
6198 612 374 226 BellSouth Network Solutions,
20115 572 316 328 Charter Communications
7843 524 502 123 Adelphia Corp.
852 519 1123 408 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7132 446 7309 312 Southwestern Bell Internet Se
19029 424 174 279 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 385 196 240 UUNET Technologies, Inc.
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 688 2091 570 UUNET - Commercial IP service
3301 303 1154 287 TeliaNet Sweden
3320 277 1988 230 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2038 228 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 186 440 184 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
5400 174 174 139 BT Ignite European Backbone
3215 163 743 83 France Telecom Transpac
8708 163 111 157 Romania Data Systems S.A.
25186 159 181 112 France Telecom Transpac's Tra
3303 143 541 137 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 120 943 65 TELECOM ITALIA
2856 118 1294 109 BTnet UK Regional network
6746 107 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 120 66 ImpSat
8151 234 351 126 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 183 43 24 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
6147 126 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 85 24 31 Integrated Systems
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
8065 75 10 19 Empresas Publicas de Medellin
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 62 4 21 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
4926 58 4 49 Telintar S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
3208 16 2 1 ARN Network
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 729 721 Covad Communications
6197 765 551 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
7018 1376 425 AT&T
7843 524 401 Adelphia Corp.
6198 612 386 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 861 324 Qwest
22909 317 306 Comcast Cable Corporation
4134 407 297 Data Communications Bureau
5668 312 293 Century Telephone
4355 390 289 EarthLink, Inc.
4755 345 289 Videsh Sanchar Nigam Ltd. Aut
22773 312 285 Cox Communications, Inc. Atla
1239 951 284 Sprint
1221 959 280 Telstra Pty Ltd
6140 344 278 ImpSat
9583 267 256 Satyam Infoway Ltd.,
9443 336 255 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:14 /12:57
/13:99 /14:276 /15:482 /16:7505 /17:1818 /18:3324
/19:8691 /20:9166 /21:6653 /22:9377 /23:10940 /24:71477
/25:182 /26:232 /27:155 /28:72 /29:21 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 729 Covad Communications
6197 619 765 BellSouth Network Solutions,
7018 503 1376 AT&T
6198 473 612 BellSouth Network Solutions,
701 435 1429 UUNET Technologies, Inc.
702 415 688 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
3356 363 710 Level 3 Communications, LLC
690 361 400 Merit Network
20115 357 572 Charter Communications
27364 348 354 Armstrong Cable Services
1239 331 951 Sprint
209 295 861 Qwest
5668 278 312 Century Telephone
19029 274 424 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 219 277 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 214 239 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:758 13:1 15:6 16:1 17:3
20:7 24:869 32:82 38:44 40:23 43:1
44:2 55:1 56:1 57:12 61:347 62:449
63:1834 64:1812 65:1805 66:2230 67:278 68:634
69:341 80:446 81:167 82:37 128:157 129:258
130:68 131:81 132:17 134:183 135:16 136:183
137:113 138:119 139:46 140:169 141:140 142:110
143:47 144:63 145:41 146:285 147:71 148:315
149:86 150:118 151:60 152:208 153:55 154:1
155:128 156:60 157:60 158:137 159:136 160:46
161:48 162:363 163:74 164:330 165:173 166:104
167:212 168:179 169:94 170:312 171:9 192:5483
193:2478 194:2007 195:1297 196:514 198:3630 199:2835
200:3030 201:3 202:4197 203:5337 204:2950 205:2028
206:2279 207:2636 208:2480 209:2816 210:963 211:420
212:876 213:961 214:23 215:24 216:3426 217:774
218:119 219:87 220:120 221:16
End of report
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