[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Apr 16 14:05:46 EDT 2004
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 17 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 136651
Prefixes after maximum aggregation: 83006
Unique aggregates announced to Internet: 66172
Total ASes present in the Internet Routing Table: 17054
Origin-only ASes present in the Internet Routing Table: 14784
Origin ASes announcing only one prefix: 6834
Transit ASes present in the Internet Routing Table: 2270
Transit-only ASes present in the Internet Routing Table: 85
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 18
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: 17
Number of addresses announced to Internet: 1279524352
Equivalent to 76 /8s, 67 /16s and 254 /24s
Percentage of available address space announced: 34.5
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 60.0
Total number of prefixes smaller than registry allocations: 61270
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25972
Total APNIC prefixes after maximum aggregation: 13641
Prefixes being announced from the APNIC address blocks: 24295
Unique aggregates announced from the APNIC address blocks: 13578
APNIC Region origin ASes present in the Internet Routing Table: 2044
APNIC Region origin ASes announcing only one prefix: 609
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 142413184
Equivalent to 8 /8s, 125 /16s and 13 /24s
Percentage of available APNIC address space announced: 76.7
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: 78905
Total ARIN prefixes after maximum aggregation: 48618
Prefixes being announced from the ARIN address blocks: 60917
Unique aggregates announced from the ARIN address blocks: 21452
ARIN Region origin ASes present in the Internet Routing Table: 9104
ARIN Region origin ASes announcing only one prefix: 3230
ARIN Region transit ASes present in the Internet Routing Table: 894
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221804832
Equivalent to 13 /8s, 56 /16s and 121 /24s
Percentage of available ARIN address space announced: 73.4
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 24836
Total RIPE prefixes after maximum aggregation: 17872
Prefixes being announced from the RIPE address blocks: 21651
Unique aggregates announced from the RIPE address blocks: 14369
RIPE Region origin ASes present in the Internet Routing Table: 5359
RIPE Region origin ASes announcing only one prefix: 2870
RIPE Region transit ASes present in the Internet Routing Table: 927
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 159405568
Equivalent to 9 /8s, 128 /16s and 86 /24s
Percentage of available RIPE address space announced: 55.9
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5799
Total LACNIC prefixes after maximum aggregation: 2202
Prefixes being announced from the LACNIC address blocks: 5436
Unique aggregates announced from the LACNIC address blocks: 3386
LACNIC Region origin ASes present in the Internet Routing Table: 371
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14553088
Equivalent to 0 /8s, 222 /16s and 16 /24s
Percentage of available LACNIC address space announced: 43.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1138
Total AfriNIC prefixes after maximum aggregation: 673
Prefixes being announced from the AfriNIC address blocks: 748
Unique aggregates announced from the AfriNIC address blocks: 556
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1838848
Equivalent to 0 /8s, 28 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 11.0
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 863 1091 629 Telstra Pty Ltd
4134 722 3179 119 Data Communications Bureau
4766 465 2916 251 Korea Internet Exchange for "
9583 436 39 100 Satyam Infoway Ltd.,
4755 360 131 55 Videsh Sanchar Nigam Ltd. Aut
2907 356 1862 332 SINET Japan
9443 353 69 78 Primus Telecommunications
9929 347 155 31 China Netcom Corp.
703 337 374 259 UUNET
17557 322 23 164 Pakistan Telecom
17676 309 4572 41 XTAGE CORPORATION
2764 294 273 240 connect.com.au pty ltd
7474 272 300 216 Optus Communications Pty Ltd
9942 223 71 127 COMindico Australia
9800 217 348 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 203 31 44 BHARTI BT INTERNET LTD.
4837 173 1571 102 chinanet IDC center beijing n
9304 168 159 23 Hutchison Telecom (HK)
7633 160 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1434 6964 1001 AT&T
701 1318 8555 946 UUNET Technologies, Inc.
1239 935 3033 634 Sprint
3356 893 10960 689 Level 3 Communications, LLC
209 758 3493 518 Qwest
4323 715 559 198 Time Warner Communications, I
18566 698 192 8 Covad Communications
6197 689 506 252 BellSouth Network Solutions,
20115 595 349 309 Charter Communications
6198 566 364 206 BellSouth Network Solutions,
7843 535 620 110 Adelphia Corp.
852 513 1127 404 Telus Advanced Communications
7066 501 208 273 Virginia Polytechnic Institut
7132 450 7847 332 Southwestern Bell Internet Se
2386 433 579 235 AT&T Data Communications Serv
27364 405 29 23 Armstrong Cable Services
4355 396 323 103 EarthLink, Inc.
22909 383 839 23 Comcast Cable Corporation
376 380 343 112 Reseau Interordinateurs Scien
6347 376 386 84 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 665 2039 556 UUNET - Commercial IP service
3320 293 2477 235 Deutsche Telekom AG
3301 266 984 257 TeliaNet Sweden
8220 264 412 252 COLT Internet - International
680 245 2027 240 DFN-IP service G-WiN
1257 233 510 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 197 778 140 Sonera Solution Autonomous Sy
3246 196 451 194 Song Networks
786 175 1826 175 The JANET IP Service
8708 173 111 162 Romania Data Systems S.A.
3215 167 815 71 France Telecom Transpac
25186 164 187 106 France Telecom Transpac's Tra
5400 157 241 140 BT Ignite European Backbone
6746 136 28 114 Dynamic Network Technologies,
3303 135 618 135 Swisscom Ltd
3269 134 1101 65 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
719 113 288 102 LANLINK autonomous system
1273 111 166 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 122 69 ImpSat
8151 265 357 130 UniNet S.A. de C.V.
11172 207 75 43 Servicios Alestra S.A de C.V
16814 163 11 6 NSS, S.A.
6147 145 78 20 Telefonica Del Peru
7303 141 53 26 Telecom Argentina Stet-France
6503 138 220 93 AVANTEL, S.A.
6505 132 90 92 Global One Communicaoes Ltda
11992 90 9 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 79 5 19 Chilesat Servicios Empresari
15311 75 18 38 Telefonica Empresas
14420 74 5 30 ANDINATEL S.A.
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 16 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
9129 33 3 4 UUNET Kenya
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
12455 24 4 2 Jambonet Autonomous system
8524 23 2 4 AUCEGYPT Autonomous System
6713 22 38 9 Itissalat Al-MAGHRIB
14988 22 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
15808 14 1 6 Communication Solutions Ltd i
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 698 690 Covad Communications
4134 722 603 Data Communications Bureau
4323 715 517 Time Warner Communications, I
6197 689 437 BellSouth Network Solutions,
7843 535 425 Adelphia Corp.
27364 405 382 Armstrong Cable Services
701 1318 372 UUNET Technologies, Inc.
6198 566 360 BellSouth Network Solutions,
22909 383 360 Comcast Cable Corporation
5668 365 349 Century Telephone
9583 436 336 Satyam Infoway Ltd.,
22773 358 323 Cox Communications, Inc. Atla
9929 347 316 China Netcom Corp.
6140 379 310 ImpSat
4755 360 305 Videsh Sanchar Nigam Ltd. Aut
1239 935 301 Sprint
4355 396 293 EarthLink, Inc.
6347 376 292 SAVVIS Communications Corpora
20115 595 286 Charter Communications
9443 353 275 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
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
192.84.205.0/24 719 LANLINK autonomous system
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 /8:18 /9:3 /10:6 /11:15 /12:58
/13:112 /14:293 /15:511 /16:7673 /17:1985 /18:3545
/19:9297 /20:9687 /21:7024 /22:9917 /23:11396 /24:74490
/25:184 /26:216 /27:128 /28:29 /29:4 /30:48
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 681 698 Covad Communications
7018 532 1434 AT&T
6197 526 689 BellSouth Network Solutions,
3356 494 893 Level 3 Communications, LLC
6198 408 566 BellSouth Network Solutions,
702 403 665 UUNET - Commercial IP service
27364 398 405 Armstrong Cable Services
7066 395 501 Virginia Polytechnic Institut
701 366 1318 UUNET Technologies, Inc.
1239 354 935 Sprint
20115 346 595 Charter Communications
690 336 373 Merit Network
5668 319 365 Century Telephone
4766 287 465 Korea Internet Exchange for "
9583 278 436 Satyam Infoway Ltd.,
9929 276 347 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
25844 244 244 Skadden, Arps, Slate, Meagher
19029 242 369 New Edge Networks
3320 240 293 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:824 13:1 15:4 16:1 17:3
20:8 24:809 32:83 38:60 40:54 44:3
55:1 56:4 57:13 61:384 62:461 63:1816
64:1911 65:1937 66:2542 67:297 68:552 69:480
80:500 81:262 82:149 83:30 128:148 129:252
130:101 131:79 132:17 134:182 135:17 136:193
137:106 138:149 139:36 140:150 141:133 142:108
143:49 144:92 145:40 146:295 147:69 148:366
149:92 150:93 151:63 152:207 153:62 154:1
155:129 156:59 157:55 158:146 159:159 160:51
161:53 162:375 163:77 164:328 165:164 166:98
167:211 168:215 169:101 170:289 171:8 192:5507
193:2634 194:2005 195:1338 196:530 198:3650 199:2978
200:3261 201:8 202:4541 203:5488 204:2987 205:1973
206:2250 207:2599 208:2320 209:2851 210:1357 211:520
212:943 213:1125 214:26 215:26 216:3367 217:885
218:164 219:96 220:204 221:27 222:20
End of report
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