Routing Table Report 04:00 +10GMT Sun 30 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140715
Prefixes after maximum aggregation: 85215
Unique aggregates announced to Internet: 67557
Total ASes present in the Internet Routing Table: 17330
Origin-only ASes present in the Internet Routing Table: 15020
Origin ASes announcing only one prefix: 6962
Transit ASes present in the Internet Routing Table: 2310
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 14
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1290929660
Equivalent to 76 /8s, 242 /16s and 5 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 57.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 63705
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26893
Total APNIC prefixes after maximum aggregation: 13859
Prefixes being announced from the APNIC address blocks: 25193
Unique aggregates announced from the APNIC address blocks: 13922
APNIC Region origin ASes present in the Internet Routing Table: 2060
APNIC Region origin ASes announcing only one prefix: 611
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 148464640
Equivalent to 8 /8s, 217 /16s and 100 /24s
Percentage of available APNIC address space announced: 67.7
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: 81109
Total ARIN prefixes after maximum aggregation: 50246
Prefixes being announced from the ARIN address blocks: 62662
Unique aggregates announced from the ARIN address blocks: 21717
ARIN Region origin ASes present in the Internet Routing Table: 9243
ARIN Region origin ASes announcing only one prefix: 3272
ARIN Region transit ASes present in the Internet Routing Table: 913
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224522528
Equivalent to 13 /8s, 97 /16s and 241 /24s
Percentage of available ARIN address space announced: 74.3
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 - 33791
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: 25506
Total RIPE prefixes after maximum aggregation: 18205
Prefixes being announced from the RIPE address blocks: 22313
Unique aggregates announced from the RIPE address blocks: 14885
RIPE Region origin ASes present in the Internet Routing Table: 5488
RIPE Region origin ASes announcing only one prefix: 2952
RIPE Region transit ASes present in the Internet Routing Table: 943
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 162924288
Equivalent to 9 /8s, 182 /16s and 7 /24s
Percentage of available RIPE address space announced: 57.1
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: 6053
Total LACNIC prefixes after maximum aggregation: 2233
Prefixes being announced from the LACNIC address blocks: 5702
Unique aggregates announced from the LACNIC address blocks: 3497
LACNIC Region origin ASes present in the Internet Routing Table: 377
LACNIC Region origin ASes announcing only one prefix: 106
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14953984
Equivalent to 0 /8s, 228 /16s and 46 /24s
Percentage of available LACNIC address space announced: 44.6
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: 672
Prefixes being announced from the AfriNIC address blocks: 780
Unique aggregates announced from the AfriNIC address blocks: 587
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
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: 1865216
Equivalent to 0 /8s, 28 /16s and 118 /24s
Percentage of available AfriNIC address space announced: 11.1
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 849 1091 612 Telstra Pty Ltd
4134 735 3532 143 Data Communications Bureau
4766 490 2896 264 Korea Internet Exchange for "
9583 425 33 137 Satyam Infoway Ltd.,
4663 399 54 17 ELIMNET, INC
4755 365 126 56 Videsh Sanchar Nigam Ltd. Aut
9443 355 69 79 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 347 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 329 375 256 UUNET
17557 328 23 168 Pakistan Telecom
2764 296 275 242 connect.com.au pty ltd
7474 263 268 207 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 225 367 62 CHINA UNICOM
9498 216 47 47 BHARTI BT INTERNET LTD.
4780 210 193 26 Digital United Inc.
17974 182 35 106 PT TELEKOMUNIKASI INDONESIA
4837 181 2003 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1443 6891 1003 AT&T
701 1313 8513 940 UUNET Technologies, Inc.
6347 940 395 100 SAVVIS Communications Corpora
1239 931 3013 632 Sprint
3356 894 10900 678 Level 3 Communications, LLC
209 737 3458 502 Qwest
4323 735 568 205 Time Warner Communications, I
6197 709 525 274 BellSouth Network Solutions,
18566 707 192 8 Covad Communications
6198 561 375 214 BellSouth Network Solutions,
721 555 4445 408 DLA Systems Automation Center
20115 553 366 287 Charter Communications
852 516 1142 406 Telus Advanced Communications
7843 505 648 119 Adelphia Corp.
7132 448 7849 334 Southwestern Bell Internet Se
2386 427 582 231 AT&T Data Communications Serv
705 403 147 277 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
376 384 359 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2038 545 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
8220 273 429 261 COLT Internet - International
3301 272 1096 262 TeliaNet Sweden
1257 248 495 199 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 205 464 202 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
719 180 288 102 LANLINK autonomous system
3215 176 831 68 France Telecom Transpac
25186 175 172 116 France Telecom Transpac's Tra
8708 174 111 163 Romania Data Systems S.A.
786 173 1794 173 The JANET IP Service
6746 154 29 127 Dynamic Network Technologies,
5400 143 207 121 BT Ignite European Backbone
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
1273 115 166 91 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 360 96 56 Servicios Alestra S.A de C.V
6140 344 124 66 ImpSat
8151 268 357 131 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 129 219 88 AVANTEL, S.A.
11992 89 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
14420 77 5 31 ANDINATEL S.A.
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 107 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 30 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
9129 25 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 4 AUCEGYPT Autonomous System
12455 24 4 2 Jambonet Autonomous system
14988 24 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
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 940 840 SAVVIS Communications Corpora
18566 707 699 Covad Communications
4134 735 592 Data Communications Bureau
4323 735 530 Time Warner Communications, I
6197 709 435 BellSouth Network Solutions,
7843 505 386 Adelphia Corp.
4663 399 382 ELIMNET, INC
701 1313 373 UUNET Technologies, Inc.
22909 390 365 Comcast Cable Corporation
5668 380 363 Century Telephone
6198 561 347 BellSouth Network Solutions,
27364 363 344 Armstrong Cable Services
22773 377 328 Cox Communications, Inc. Atla
9929 347 314 China Netcom Corp.
4755 365 309 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
11172 360 304 Servicios Alestra S.A de C.V
1239 931 299 Sprint
4355 393 290 EarthLink, Inc.
9583 425 288 Satyam Infoway Ltd.,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 10199 DishnetDSL Limited
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
32546 UNALLOCATED 66.151.220.0/24 10910 InterNAP Network Ser
65001 PRIVATE 148.235.124.0/24 8151 UniNet S.A. de C.V.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
65001 PRIVATE 200.79.116.0/24 8151 UniNet S.A. de C.V.
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
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
192.70.164.0/24 25689 National Research Council of
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
192.172.11.0/24 721 DLA Systems Automation Center
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 /12:59
/13:122 /14:295 /15:512 /16:7756 /17:2014 /18:3603
/19:9395 /20:9907 /21:7249 /22:10303 /23:11635 /24:76877
/25:311 /26:394 /27:135 /28:31 /29:8 /30:55
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 715 940 SAVVIS Communications Corpora
18566 690 707 Covad Communications
7018 557 1443 AT&T
6197 538 709 BellSouth Network Solutions,
3356 510 894 Level 3 Communications, LLC
702 396 650 UUNET - Commercial IP service
6198 394 561 BellSouth Network Solutions,
701 370 1313 UUNET Technologies, Inc.
1239 366 931 Sprint
4663 361 399 ELIMNET, INC
27364 351 363 Armstrong Cable Services
5668 332 380 Century Telephone
4766 311 490 Korea Internet Exchange for "
20115 294 553 Charter Communications
9929 277 347 China Netcom Corp.
9583 270 425 Satyam Infoway Ltd.,
14824 251 276 NewSouth Communications Corp.
690 247 283 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:5 16:2 17:3
20:8 24:734 32:101 38:67 40:54 44:3
55:1 56:3 57:15 61:382 62:483 63:1829
64:1958 65:1993 66:2589 67:318 68:526 69:528
70:64 80:498 81:291 82:173 83:61 128:146
129:185 130:81 131:132 132:18 133:1 134:180
135:17 136:186 137:92 138:153 139:43 140:164
141:124 142:117 143:61 144:86 145:42 146:301
147:76 148:408 149:118 150:93 151:71 152:165
153:62 154:1 155:118 156:61 157:59 158:144
159:144 160:54 161:55 162:379 163:74 164:166
165:160 166:99 167:220 168:225 169:105 170:286
171:8 192:5715 193:2732 194:2024 195:1348 196:556
198:3931 199:3273 200:3462 201:7 202:4596 203:5597
204:3054 205:2287 206:2277 207:2447 208:2244 209:2945
210:1460 211:601 212:962 213:1167 214:223 215:29
216:3464 217:913 218:168 219:110 220:229 221:28
222:38
End of report