Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Sep 3 18:06:06 UTC 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 04 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 145774
Prefixes after maximum aggregation: 86810
Unique aggregates announced to Internet: 69608
Total ASes present in the Internet Routing Table: 17969
Origin-only ASes present in the Internet Routing Table: 15607
Origin ASes announcing only one prefix: 7264
Transit ASes present in the Internet Routing Table: 2362
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 33
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1332457920
Equivalent to 79 /8s, 107 /16s and 177 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66629
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27843
Total APNIC prefixes after maximum aggregation: 13973
Prefixes being announced from the APNIC address blocks: 26058
Unique aggregates announced from the APNIC address blocks: 14039
APNIC Region origin ASes present in the Internet Routing Table: 2128
APNIC Region origin ASes announcing only one prefix: 631
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 158646144
Equivalent to 9 /8s, 116 /16s and 191 /24s
Percentage of available APNIC address space announced: 72.4
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: 83493
Total ARIN prefixes after maximum aggregation: 50967
Prefixes being announced from the ARIN address blocks: 63820
Unique aggregates announced from the ARIN address blocks: 22570
ARIN Region origin ASes present in the Internet Routing Table: 9502
ARIN Region origin ASes announcing only one prefix: 3388
ARIN Region transit ASes present in the Internet Routing Table: 918
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 231154464
Equivalent to 13 /8s, 199 /16s and 35 /24s
Percentage of available ARIN address space announced: 68.9
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, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26825
Total RIPE prefixes after maximum aggregation: 18919
Prefixes being announced from the RIPE address blocks: 23631
Unique aggregates announced from the RIPE address blocks: 15737
RIPE Region origin ASes present in the Internet Routing Table: 5791
RIPE Region origin ASes announcing only one prefix: 3109
RIPE Region transit ASes present in the Internet Routing Table: 992
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 170299456
Equivalent to 10 /8s, 38 /16s and 144 /24s
Percentage of available RIPE address space announced: 59.7
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, 33792-34815
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: 6332
Total LACNIC prefixes after maximum aggregation: 2262
Prefixes being announced from the LACNIC address blocks: 6118
Unique aggregates announced from the LACNIC address blocks: 3504
LACNIC Region origin ASes present in the Internet Routing Table: 387
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15855104
Equivalent to 0 /8s, 241 /16s and 238 /24s
Percentage of available LACNIC address space announced: 47.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1248
Total AfriNIC prefixes after maximum aggregation: 689
Prefixes being announced from the AfriNIC address blocks: 833
Unique aggregates announced from the AfriNIC address blocks: 662
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2060032
Equivalent to 0 /8s, 31 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 833 4193 156 Data Communications Bureau
1221 811 1184 585 Telstra Pty Ltd
4766 564 2897 265 Korea Internet Exchange for "
9583 529 41 105 Satyam Infoway Ltd.,
4755 364 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 363 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 348 5180 39 XTAGE CORPORATION
17557 317 22 155 Pakistan Telecom
703 312 342 241 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 266 268 200 Optus Communications Pty Ltd
4802 233 28 143 Wantree Development
9942 232 73 127 COMindico Australia
9800 228 372 66 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 201 2256 105 chinanet IDC center beijing n
17974 201 61 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1412 6759 966 AT&T WorldNet Services
701 1275 8424 917 UUNET Technologies, Inc.
1239 920 2852 614 Sprint
2386 828 561 593 AT&T Data Communications Serv
4323 779 633 216 Time Warner Telecom
18566 743 208 6 Covad Communications
721 715 21020 295 DLA Systems Automation Center
6197 715 362 338 BellSouth Network Solutions,
209 621 3431 498 Qwest
20115 580 407 292 Charter Communications
3356 568 10981 438 Level 3 Communications, LLC
6347 540 296 118 SAVVIS Communications Corpora
852 511 1141 398 Telus Advanced Communications
7843 490 675 104 Adelphia Corp.
3561 466 2390 349 Cable & Wireless USA
6198 441 401 204 BellSouth Network Solutions,
7132 435 8029 377 SBC Internet Services
705 428 163 270 UUNET Technologies, Inc.
5668 389 87 18 Century Telephone
22773 389 960 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 649 2032 539 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 251 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 213 747 182 SWIPnet Swedish IP Network
8708 203 113 182 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 182 876 76 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
5400 155 209 126 BT Ignite European Backbone
6746 154 29 131 Dynamic Network Technologies,
25186 153 154 109 France Telecom Transpac's Tra
3303 146 609 129 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 136 16 17 Bulgarian Telecommunication C
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 357 100 54 Servicios Alestra S.A de C.V
6140 356 137 63 ImpSat
8151 286 407 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 191 86 19 Telefonica Del Peru
11664 158 11 21 Keytech SA
6505 136 90 93 Global One Communicaoes Ltda
6503 134 187 90 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
14420 86 6 34 ANDINATEL S.A.
6535 84 5 18 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 80 40 2 Cable-Wireless Panama
11311 78 7 19 Sinectis S.A.
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 29 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
14988 49 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
9129 31 3 4 UUNET Kenya
6713 27 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 743 737 Covad Communications
4134 833 677 Data Communications Bureau
4323 779 563 Time Warner Telecom
9583 529 424 Satyam Infoway Ltd.,
6347 540 422 SAVVIS Communications Corpora
721 715 420 DLA Systems Automation Center
7843 490 386 Adelphia Corp.
6197 715 377 BellSouth Network Solutions,
5668 389 371 Century Telephone
22773 389 370 Cox Communications, Inc. Atla
701 1275 358 UUNET Technologies, Inc.
6467 388 358 E.Spire Communications, Inc.
27364 364 345 Armstrong Cable Services
22909 365 330 Comcast Cable Corporation
9929 363 329 China Netcom Corp.
4755 364 314 Videsh Sanchar Nigam Ltd. Aut
17676 348 309 XTAGE CORPORATION
1239 920 306 Sprint
11172 357 303 Servicios Alestra S.A de C.V
4766 564 299 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro
64580 PRIVATE 219.146.208.0/21 17633 ASN for Shandong Pro
64581 PRIVATE 219.146.216.0/21 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro
64580 PRIVATE 222.174.224.0/19 17633 ASN for Shandong Pro
64581 PRIVATE 222.175.0.0/19 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 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 WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
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 /8:19 /9:3 /10:6 /11:14 /12:63
/13:134 /14:304 /15:541 /16:8029 /17:2201 /18:3813
/19:9748 /20:10249 /21:7702 /22:10621 /23:12237 /24:79352
/25:240 /26:189 /27:100 /28:52 /29:27 /30:87
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 727 743 Covad Communications
2386 591 828 AT&T Data Communications Serv
6197 567 715 BellSouth Network Solutions,
7018 556 1412 AT&T WorldNet Services
702 397 649 UUNET - Commercial IP service
6347 389 540 SAVVIS Communications Corpora
9583 369 529 Satyam Infoway Ltd.,
4766 368 564 Korea Internet Exchange for "
701 358 1275 UUNET Technologies, Inc.
1239 353 920 Sprint
27364 348 364 Armstrong Cable Services
5668 340 389 Century Telephone
6198 322 441 BellSouth Network Solutions,
20115 302 580 Charter Communications
9929 290 363 China Netcom Corp.
6467 285 388 E.Spire Communications, Inc.
6517 265 292 Yipes Communications, Inc.
13609 261 304 Choice One Communications Inc
3320 247 301 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:1413 13:1 15:5 16:2
17:3 20:9 24:703 32:78 33:3 38:79
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:468 62:500 63:1829 64:2293 65:2064
66:2447 67:367 68:540 69:696 70:34 80:517
81:370 82:231 83:140 84:26 128:104 129:171
130:87 131:190 132:26 134:187 135:17 136:187
137:50 138:168 139:38 140:158 141:107 142:120
143:67 144:155 145:41 146:292 147:92 148:422
149:107 150:87 151:70 152:169 153:68 154:2
155:129 156:58 157:79 158:141 159:160 160:56
161:71 162:389 163:79 164:205 165:160 166:111
167:221 168:286 169:109 170:271 171:9 192:5589
193:2881 194:2114 195:1470 196:590 198:3666 199:3250
200:3703 201:15 202:4771 203:5634 204:3221 205:2076
206:2318 207:2528 208:2133 209:3037 210:1470 211:586
212:1014 213:1195 214:130 215:31 216:3709 217:997
218:186 219:84 220:245 221:37 222:44
End of report
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