[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Oct 31 13:06:36 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 01 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130815
Prefixes after maximum aggregation: 80863
Unique aggregates announced to Internet: 62654
Total ASes present in the Internet Routing Table: 16113
Origin-only ASes present in the Internet Routing Table: 13977
Origin ASes announcing only one prefix: 6377
Transit ASes present in the Internet Routing Table: 2136
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1250623620
Equivalent to 74 /8s, 139 /16s and 0 /24s
Percentage of available address space announced: 33.7
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57815
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23212
Total APNIC prefixes after maximum aggregation: 12931
Prefixes being announced from the APNIC address blocks: 21602
Unique aggregates announced from the APNIC address blocks: 12520
APNIC Region origin ASes present in the Internet Routing Table: 1938
APNIC Region origin ASes announcing only one prefix: 570
APNIC Region transit ASes present in the Internet Routing Table: 314
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 124557312
Equivalent to 7 /8s, 108 /16s and 152 /24s
Percentage of available APNIC address space announced: 67.1
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: 78020
Total ARIN prefixes after maximum aggregation: 48178
Prefixes being announced from the ARIN address blocks: 60766
Unique aggregates announced from the ARIN address blocks: 20814
ARIN Region origin ASes present in the Internet Routing Table: 8718
ARIN Region origin ASes announcing only one prefix: 3018
ARIN Region transit ASes present in the Internet Routing Table: 838
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208380320
Equivalent to 12 /8s, 107 /16s and 161 /24s
Percentage of available ARIN address space announced: 73.1
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: 22896
Total RIPE prefixes after maximum aggregation: 16777
Prefixes being announced from the RIPE address blocks: 19764
Unique aggregates announced from the RIPE address blocks: 13078
RIPE Region origin ASes present in the Internet Routing Table: 4930
RIPE Region origin ASes announcing only one prefix: 2655
RIPE Region transit ASes present in the Internet Routing Table: 873
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 138494464
Equivalent to 8 /8s, 65 /16s and 66 /24s
Percentage of available RIPE address space announced: 75.0
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5588
Total LACNIC prefixes after maximum aggregation: 2277
Prefixes being announced from the LACNIC address blocks: 5086
Unique aggregates announced from the LACNIC address blocks: 3261
LACNIC Region origin ASes present in the Internet Routing Table: 357
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13456640
Equivalent to 0 /8s, 205 /16s and 85 /24s
Percentage of available LACNIC address space announced: 40.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1098
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 718
Unique aggregates announced from the AfriNIC address blocks: 553
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1748736
Equivalent to 0 /8s, 26 /16s and 175 /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 954 1108 677 Telstra Pty Ltd
4755 384 131 67 Videsh Sanchar Nigam Ltd. Aut
2907 367 1879 344 SINET Japan
4134 366 2293 106 Data Communications Bureau
703 333 356 266 UUNET
2764 296 288 254 connect.com.au pty ltd
17557 293 20 150 Pakistan Telecom
17676 279 4124 34 XTAGE CORPORATION
9583 271 44 11 Satyam Infoway Ltd.,
7474 264 306 210 Optus Communications Pty Ltd
4766 249 2462 184 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9443 213 72 83 Primus Telecommunications
9800 203 342 54 CHINA UNICOM
9942 202 70 117 COMindico Australia
9498 201 21 26 BHARTI BT INTERNET LTD.
9929 192 160 36 China Netcom Corp.
17642 157 40 116 RequestDSL BGP AS# for Sydney
4739 145 58 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
209 2058 3403 540 Qwest
701 1445 8667 1000 UUNET Technologies, Inc.
7018 1363 7065 945 AT&T
1239 919 3052 665 Sprint
18566 715 176 8 Covad Communications
4323 680 576 196 Time Warner Communications, I
6197 648 445 242 BellSouth Network Solutions,
3356 622 10819 511 Level 3 Communications, LLC
6198 573 328 197 BellSouth Network Solutions,
20115 539 278 305 Charter Communications
852 516 1123 409 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
7843 509 481 128 Adelphia Corp.
19029 425 174 275 New Edge Networks
7132 415 7191 283 Southwestern Bell Internet Se
690 410 59 275 Merit Network
4355 398 332 108 EarthLink, Inc.
705 394 183 238 UUNET Technologies, Inc.
2386 388 526 201 AT&T Data Communications Serv
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 697 2094 579 UUNET - Commercial IP service
3301 311 1170 289 TeliaNet Sweden
3320 279 2004 236 Deutsche Telekom AG
8220 258 421 247 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 186 172 134 BT Ignite European Backbone
5515 185 778 146 Sonera Solution Autonomous Sy
3215 183 688 90 France Telecom Transpac
786 174 1825 174 The JANET IP Service
8708 160 111 154 Romania Data Systems S.A.
3303 146 557 141 Swisscom Ltd
719 136 288 105 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
25186 132 180 93 France Telecom Transpac's Tra
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
2856 118 1294 109 BTnet UK Regional network
3269 117 910 64 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 337 104 99 ImpSat
8151 237 351 127 UniNet S.A. de C.V.
7303 194 42 47 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
6147 111 70 19 Telefonica Del Peru
11340 105 3 28 Red Universitaria Nacional
11992 88 24 30 Integrated Systems
8065 86 10 18 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 74 22 29 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 250 39 Fundacao de Amparo a Pesquisa
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 87 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 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
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
9129 22 3 4 UUNET Kenya
10798 17 1 11 Standard Bank of South Africa
15706 15 2 5 Sudatel Internet Exchange Aut
8524 14 1 3 AUCEGYPT Autonomous System
12258 14 3 9 Vodacom Internet Company
17148 14 1 8 First National Bank
3208 13 2 1 ARN Network
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 715 707 Covad Communications
4323 680 484 Time Warner Communications, I
701 1445 445 UUNET Technologies, Inc.
7018 1363 418 AT&T
6197 648 406 BellSouth Network Solutions,
7843 509 381 Adelphia Corp.
6198 573 376 BellSouth Network Solutions,
4755 384 317 Videsh Sanchar Nigam Ltd. Aut
27364 316 293 Armstrong Cable Services
5668 310 293 Century Telephone
4355 398 290 EarthLink, Inc.
22909 305 284 Comcast Cable Corporation
22773 296 279 Cox Communications, Inc. Atla
1221 954 277 Telstra Pty Ltd
6347 346 266 SAVVIS Communications Corpora
4134 366 260 Data Communications Bureau
9583 271 260 Satyam Infoway Ltd.,
1239 919 254 Sprint
376 359 245 Reseau Interordinateurs Scien
17676 279 245 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
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
192.153.136.0/21 568 DISO-UNRRA
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 /11:12 /12:55
/13:99 /14:270 /15:470 /16:7449 /17:1787 /18:3245
/19:8589 /20:9196 /21:6710 /22:9719 /23:10901 /24:71560
/25:160 /26:221 /27:159 /28:71 /29:23 /30:50
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
209 747 2058 Qwest
18566 709 715 Covad Communications
6197 505 648 BellSouth Network Solutions,
7018 490 1363 AT&T
701 444 1445 UUNET Technologies, Inc.
6198 440 573 BellSouth Network Solutions,
702 418 697 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 347 539 Charter Communications
1239 326 919 Sprint
27364 310 316 Armstrong Cable Services
3356 307 622 Level 3 Communications, LLC
5668 276 310 Century Telephone
19029 276 425 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 221 279 Deutsche Telekom AG
4355 221 398 EarthLink, Inc.
10753 217 265 XCOM Technologies, INC.
6517 210 234 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:726 13:1 15:6 16:1 17:2
20:7 24:819 25:1 32:82 38:52 40:23
43:1 44:2 55:1 57:14 61:333 62:456
63:1902 64:1826 65:1855 66:2189 67:287 68:394
69:293 80:428 81:167 82:74 128:157 129:157
130:63 131:82 132:17 134:168 135:10 136:178
137:120 138:130 139:48 140:176 141:137 142:102
143:48 144:60 145:36 146:282 147:67 148:305
149:81 150:121 151:78 152:213 153:59 154:1
155:131 156:65 157:60 158:140 159:142 160:46
161:68 162:362 163:67 164:332 165:155 166:100
167:311 168:177 169:96 170:317 171:9 192:5447
193:2429 194:2020 195:1332 196:511 198:3669 199:2838
200:3085 201:3 202:4131 203:5308 204:3123 205:2151
206:2295 207:2718 208:2512 209:2841 210:952 211:392
212:934 213:942 214:17 215:21 216:3352 217:782
218:117 219:89 220:113 221:17 222:1
End of report
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