[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri May 7 14:05:51 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 08 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137631
Prefixes after maximum aggregation: 83480
Unique aggregates announced to Internet: 66521
Total ASes present in the Internet Routing Table: 17179
Origin-only ASes present in the Internet Routing Table: 14905
Origin ASes announcing only one prefix: 6909
Transit ASes present in the Internet Routing Table: 2274
Transit-only ASes present in the Internet Routing Table: 77
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: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1302144952
Equivalent to 77 /8s, 157 /16s and 39 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100467
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26174
Total APNIC prefixes after maximum aggregation: 13639
Prefixes being announced from the APNIC address blocks: 24488
Unique aggregates announced from the APNIC address blocks: 13704
APNIC Region origin ASes present in the Internet Routing Table: 2048
APNIC Region origin ASes announcing only one prefix: 609
APNIC Region transit ASes present in the Internet Routing Table: 323
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146339328
Equivalent to 8 /8s, 184 /16s and 246 /24s
Percentage of available APNIC address space announced: 66.8
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79143
Total ARIN prefixes after maximum aggregation: 48914
Prefixes being announced from the ARIN address blocks: 61132
Unique aggregates announced from the ARIN address blocks: 21290
ARIN Region origin ASes present in the Internet Routing Table: 9155
ARIN Region origin ASes announcing only one prefix: 3257
ARIN Region transit ASes present in the Internet Routing Table: 899
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 222893344
Equivalent to 13 /8s, 73 /16s and 21 /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
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: 25320
Total RIPE prefixes after maximum aggregation: 18039
Prefixes being announced from the RIPE address blocks: 22126
Unique aggregates announced from the RIPE address blocks: 14602
RIPE Region origin ASes present in the Internet Routing Table: 5432
RIPE Region origin ASes announcing only one prefix: 2916
RIPE Region transit ASes present in the Internet Routing Table: 937
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160343808
Equivalent to 9 /8s, 142 /16s and 167 /24s
Percentage of available RIPE address space announced: 56.2
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: 5844
Total LACNIC prefixes after maximum aggregation: 2215
Prefixes being announced from the LACNIC address blocks: 5496
Unique aggregates announced from the LACNIC address blocks: 3424
LACNIC Region origin ASes present in the Internet Routing Table: 375
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: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14763008
Equivalent to 0 /8s, 225 /16s and 68 /24s
Percentage of available LACNIC address space announced: 44.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1149
Total AfriNIC prefixes after maximum aggregation: 673
Prefixes being announced from the AfriNIC address blocks: 763
Unique aggregates announced from the AfriNIC address blocks: 569
AfriNIC Region origin ASes present in the Internet Routing Table: 91
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: 15
Number of AfriNIC addresses announced to Internet: 1849600
Equivalent to 0 /8s, 28 /16s and 57 /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 852 1091 618 Telstra Pty Ltd
4134 769 3482 139 Data Communications Bureau
4766 483 2901 259 Korea Internet Exchange for "
9583 463 40 81 Satyam Infoway Ltd.,
2907 354 1840 328 SINET Japan
4755 354 125 50 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
9929 344 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 165 Pakistan Telecom
2764 292 274 240 connect.com.au pty ltd
7474 271 268 210 Optus Communications Pty Ltd
9942 222 71 126 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 190 31 45 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 171 161 25 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 1456 6943 1012 AT&T
701 1318 8538 944 UUNET Technologies, Inc.
1239 930 3016 631 Sprint
3356 893 10951 684 Level 3 Communications, LLC
209 739 3469 502 Qwest
4323 718 561 199 Time Warner Communications, I
18566 701 192 8 Covad Communications
6197 697 517 265 BellSouth Network Solutions,
6198 568 372 210 BellSouth Network Solutions,
20115 519 827 265 Charter Communications
852 513 1142 404 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 500 643 112 Adelphia Corp.
7132 450 7847 333 Southwestern Bell Internet Se
2386 425 579 231 AT&T Data Communications Serv
6347 401 388 94 SAVVIS Communications Corpora
705 398 145 273 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 390 844 26 Comcast Cable Corporation
376 380 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 655 2038 549 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 270 968 260 TeliaNet Sweden
8220 266 412 254 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 243 511 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
3246 198 450 195 Song Networks
719 197 288 103 LANLINK autonomous system
3215 177 837 70 France Telecom Transpac
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
8708 174 111 163 Romania Data Systems S.A.
5400 154 238 135 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 130 606 130 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 112 166 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 382 122 69 ImpSat
8151 267 373 129 UniNet S.A. de C.V.
11172 214 77 49 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 153 78 20 Telefonica Del Peru
7303 142 53 29 Telecom Argentina Stet-France
6505 132 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11556 88 73 25 Cable-Wireless Panama
11992 88 9 28 Integrated Systems
6535 80 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
14420 69 4 28 ANDINATEL S.A.
7080 64 4 1 Electronica y Comunicaciones
10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA
5639 62 8 8 Telecommunications Services o
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
24835 31 18 6 RAYA Telecom - Egypt
9129 29 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
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
8346 13 6 12 SONATEL-AS Autonomous System
15808 13 1 5 Communication Solutions Ltd i
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 701 693 Covad Communications
4134 769 630 Data Communications Bureau
4323 718 519 Time Warner Communications, I
6197 697 432 BellSouth Network Solutions,
7843 500 388 Adelphia Corp.
9583 463 382 Satyam Infoway Ltd.,
701 1318 374 UUNET Technologies, Inc.
22909 390 364 Comcast Cable Corporation
5668 379 363 Century Telephone
6198 568 358 BellSouth Network Solutions,
27364 364 345 Armstrong Cable Services
22773 369 329 Cox Communications, Inc. Atla
6140 382 313 ImpSat
9929 344 313 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 401 307 SAVVIS Communications Corpora
4755 354 304 Videsh Sanchar Nigam Ltd. Aut
1239 930 299 Sprint
4355 391 290 EarthLink, Inc.
9443 353 275 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
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
30306 UNALLOCATED 212.85.220.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.220.0/22 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.221.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.222.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.223.0/24 5713 Telkom SA Ltd
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 /8:19 /9:3 /10:6 /11:16 /12:58
/13:114 /14:294 /15:507 /16:7744 /17:1998 /18:3567
/19:9361 /20:9805 /21:7074 /22:10120 /23:11445 /24:74792
/25:210 /26:256 /27:141 /28:30 /29:5 /30:54
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7018 1091 1456 AT&T
701 994 1318 UUNET Technologies, Inc.
1221 758 852 Telstra Pty Ltd
18566 684 701 Covad Communications
1239 664 930 Sprint
3356 650 893 Level 3 Communications, LLC
6197 585 697 BellSouth Network Solutions,
4323 504 718 Time Warner Communications, I
209 490 739 Qwest
7066 477 505 Virginia Polytechnic Institut
6198 458 568 BellSouth Network Solutions,
9583 450 463 Satyam Infoway Ltd.,
702 435 655 UUNET - Commercial IP service
4766 396 483 Korea Internet Exchange for "
5668 360 379 Century Telephone
6140 357 382 ImpSat
705 352 398 UUNET Technologies, Inc.
852 352 513 Telus Advanced Communications
27364 352 364 Armstrong Cable Services
2386 346 425 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:4 16:1 17:3
20:8 24:721 32:96 38:66 40:54 44:3
55:1 56:4 57:13 61:408 62:491 63:1844
64:1862 65:1983 66:2509 67:308 68:511 69:526
70:64 80:506 81:282 82:169 83:57 128:150
129:205 130:77 131:89 132:18 133:2 134:184
135:17 136:188 137:104 138:149 139:39 140:154
141:134 142:113 143:52 144:90 145:41 146:292
147:77 148:370 149:113 150:93 151:64 152:184
153:62 154:1 155:123 156:58 157:54 158:144
159:147 160:48 161:53 162:380 163:77 164:333
165:160 166:99 167:218 168:220 169:105 170:286
171:8 192:5533 193:2689 194:2030 195:1372 196:540
198:3644 199:3030 200:3289 201:8 202:4536 203:5523
204:2997 205:1973 206:2258 207:2488 208:2279 209:2837
210:1382 211:515 212:954 213:1139 214:37 215:28
216:3377 217:908 218:169 219:99 220:212 221:28
222:28
End of report
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