[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Apr 23 14:06:13 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 24 Apr, 2004
Analysis Summary
----------------
BGP routing table entries examined: 136951
Prefixes after maximum aggregation: 83183
Unique aggregates announced to Internet: 66397
Total ASes present in the Internet Routing Table: 17090
Origin-only ASes present in the Internet Routing Table: 14819
Origin ASes announcing only one prefix: 6844
Transit ASes present in the Internet Routing Table: 2271
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
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: 1282660100
Equivalent to 76 /8s, 115 /16s and 215 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 57.6
Percentage of available address space allocated: 60.0
Total number of prefixes smaller than registry allocations: 61497
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26072
Total APNIC prefixes after maximum aggregation: 13676
Prefixes being announced from the APNIC address blocks: 24379
Unique aggregates announced from the APNIC address blocks: 13664
APNIC Region origin ASes present in the Internet Routing Table: 2041
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: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 144640384
Equivalent to 8 /8s, 159 /16s and 9 /24s
Percentage of available APNIC address space announced: 77.9
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: 78837
Total ARIN prefixes after maximum aggregation: 48684
Prefixes being announced from the ARIN address blocks: 60793
Unique aggregates announced from the ARIN address blocks: 21470
ARIN Region origin ASes present in the Internet Routing Table: 9122
ARIN Region origin ASes announcing only one prefix: 3237
ARIN Region transit ASes present in the Internet Routing Table: 891
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 222220576
Equivalent to 13 /8s, 62 /16s and 209 /24s
Percentage of available ARIN address space announced: 73.6
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: 25107
Total RIPE prefixes after maximum aggregation: 17942
Prefixes being announced from the RIPE address blocks: 21919
Unique aggregates announced from the RIPE address blocks: 14431
RIPE Region origin ASes present in the Internet Routing Table: 5382
RIPE Region origin ASes announcing only one prefix: 2872
RIPE Region transit ASes present in the Internet Routing Table: 929
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 159835648
Equivalent to 9 /8s, 134 /16s and 230 /24s
Percentage of available RIPE address space announced: 56.0
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5787
Total LACNIC prefixes after maximum aggregation: 2207
Prefixes being announced from the LACNIC address blocks: 5433
Unique aggregates announced from the LACNIC address blocks: 3380
LACNIC Region origin ASes present in the Internet Routing Table: 374
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14628096
Equivalent to 0 /8s, 223 /16s and 53 /24s
Percentage of available LACNIC address space announced: 43.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1147
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 756
Unique aggregates announced from the AfriNIC address blocks: 562
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 22
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: 1840384
Equivalent to 0 /8s, 28 /16s and 21 /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 858 1091 626 Telstra Pty Ltd
4134 725 3171 120 Data Communications Bureau
4766 474 2916 253 Korea Internet Exchange for "
9583 438 39 95 Satyam Infoway Ltd.,
4755 360 129 53 Videsh Sanchar Nigam Ltd. Aut
2907 355 1846 331 SINET Japan
9443 354 69 78 Primus Telecommunications
9929 348 155 31 China Netcom Corp.
703 335 373 258 UUNET
17676 329 4892 54 XTAGE CORPORATION
17557 323 23 162 Pakistan Telecom
2764 294 273 240 connect.com.au pty ltd
7474 273 300 214 Optus Communications Pty Ltd
9942 222 70 125 COMindico Australia
9800 218 348 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 205 31 45 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 169 159 24 Hutchison Telecom (HK)
7633 159 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6964 997 AT&T
701 1315 8522 942 UUNET Technologies, Inc.
1239 938 3033 636 Sprint
3356 895 10968 690 Level 3 Communications, LLC
209 756 3479 518 Qwest
4323 721 559 200 Time Warner Communications, I
18566 699 192 8 Covad Communications
6197 695 507 256 BellSouth Network Solutions,
6198 563 366 207 BellSouth Network Solutions,
20115 541 342 283 Charter Communications
852 513 1127 404 Telus Advanced Communications
7066 502 208 274 Virginia Polytechnic Institut
7843 497 624 112 Adelphia Corp.
7132 450 7847 332 Southwestern Bell Internet Se
2386 432 579 235 AT&T Data Communications Serv
27364 405 29 23 Armstrong Cable Services
4355 393 323 103 EarthLink, Inc.
376 380 343 112 Reseau Interordinateurs Scien
22909 380 835 40 Comcast Cable Corporation
6347 377 386 85 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 662 2039 553 UUNET - Commercial IP service
3320 296 2477 236 Deutsche Telekom AG
3301 268 984 258 TeliaNet Sweden
8220 268 412 255 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 233 510 195 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
719 200 288 103 LANLINK autonomous system
3246 198 451 195 Song Networks
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
8708 175 111 164 Romania Data Systems S.A.
3215 167 815 71 France Telecom Transpac
5400 159 241 140 BT Ignite European Backbone
6746 137 28 114 Dynamic Network Technologies,
3303 135 610 135 Swisscom Ltd
3269 134 1101 65 TELECOM ITALIA
12302 121 17 28 MobiFon S.A.
1273 112 166 89 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 379 122 74 ImpSat
8151 265 357 130 UniNet S.A. de C.V.
11172 208 75 43 Servicios Alestra S.A de C.V
16814 163 11 6 NSS, S.A.
6147 149 78 20 Telefonica Del Peru
7303 140 53 27 Telecom Argentina Stet-France
6503 136 220 92 AVANTEL, S.A.
6505 132 90 91 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
4270 71 18 9 Red de Interconexion Universi
11311 71 7 16 Sinectis S.A.
14535 70 6 5 Techtel S.A.
14259 69 4 5 GTD Internet S.A.
14420 65 4 24 ANDINATEL S.A.
5639 64 7 13 Telecommunications Services o
7080 64 4 1 Electronica y Comunicaciones
10292 62 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 32 3 4 UUNET Kenya
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
12455 25 4 2 Jambonet Autonomous system
14988 25 16 1 Botswana Telecommunications C
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 22 2 4 AUCEGYPT Autonomous System
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 699 691 Covad Communications
4134 725 605 Data Communications Bureau
4323 721 521 Time Warner Communications, I
6197 695 439 BellSouth Network Solutions,
7843 497 385 Adelphia Corp.
27364 405 382 Armstrong Cable Services
701 1315 373 UUNET Technologies, Inc.
6198 563 356 BellSouth Network Solutions,
5668 370 354 Century Telephone
9583 438 343 Satyam Infoway Ltd.,
22909 380 340 Comcast Cable Corporation
22773 361 325 Cox Communications, Inc. Atla
9929 348 317 China Netcom Corp.
4755 360 307 Videsh Sanchar Nigam Ltd. Aut
6140 379 305 ImpSat
1239 938 302 Sprint
6347 377 292 SAVVIS Communications Corpora
4355 393 290 EarthLink, Inc.
9443 354 276 Primus Telecommunications
17676 329 275 XTAGE CORPORATION
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 /14:294 /15:509 /16:7735 /17:1994 /18:3552
/19:9317 /20:9715 /21:7045 /22:9932 /23:11395 /24:74555
/25:206 /26:253 /27:141 /28:29 /29:4 /30:51
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 682 699 Covad Communications
7018 536 1426 AT&T
6197 531 695 BellSouth Network Solutions,
3356 495 895 Level 3 Communications, LLC
6198 402 563 BellSouth Network Solutions,
702 400 662 UUNET - Commercial IP service
27364 398 405 Armstrong Cable Services
7066 396 502 Virginia Polytechnic Institut
701 366 1315 UUNET Technologies, Inc.
1239 354 938 Sprint
5668 323 370 Century Telephone
20115 296 541 Charter Communications
690 295 332 Merit Network
4766 294 474 Korea Internet Exchange for "
9583 279 438 Satyam Infoway Ltd.,
9929 277 348 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
25844 244 244 Skadden, Arps, Slate, Meagher
3320 243 296 Deutsche Telekom AG
13609 233 274 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:821 13:1 15:4 16:1 17:3
20:8 24:782 32:82 38:63 40:54 44:3
55:1 56:4 57:13 61:402 62:465 63:1829
64:1882 65:1944 66:2512 67:291 68:540 69:500
70:32 80:502 81:267 82:152 83:31 128:144
129:253 130:101 131:89 132:19 134:184 135:17
136:153 137:106 138:151 139:37 140:150 141:133
142:108 143:50 144:78 145:41 146:299 147:77
148:368 149:92 150:93 151:64 152:189 153:62
154:1 155:124 156:131 157:54 158:145 159:159
160:51 161:53 162:377 163:79 164:331 165:163
166:98 167:209 168:218 169:103 170:289 171:8
192:5521 193:2656 194:2028 195:1351 196:538 198:3648
199:3021 200:3252 201:8 202:4547 203:5456 204:2986
205:1970 206:2266 207:2484 208:2290 209:2846 210:1366
211:521 212:960 213:1158 214:35 215:27 216:3353
217:893 218:169 219:100 220:209 221:30 222:23
End of report
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