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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 08 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 146084
Prefixes after maximum aggregation: 87139
Unique aggregates announced to Internet: 69865
Total ASes present in the Internet Routing Table: 17976
Origin-only ASes present in the Internet Routing Table: 15617
Origin ASes announcing only one prefix: 7277
Transit ASes present in the Internet Routing Table: 2359
Transit-only ASes present in the Internet Routing Table: 79
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: 39
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1334304452
Equivalent to 79 /8s, 135 /16s and 222 /24s
Percentage of available address space announced: 36.0
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66784
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27968
Total APNIC prefixes after maximum aggregation: 14218
Prefixes being announced from the APNIC address blocks: 26188
Unique aggregates announced from the APNIC address blocks: 14187
APNIC Region origin ASes present in the Internet Routing Table: 2130
APNIC Region origin ASes announcing only one prefix: 633
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 160696192
Equivalent to 9 /8s, 148 /16s and 7 /24s
Percentage of available APNIC address space announced: 73.3
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: 83590
Total ARIN prefixes after maximum aggregation: 51020
Prefixes being announced from the ARIN address blocks: 63916
Unique aggregates announced from the ARIN address blocks: 22598
ARIN Region origin ASes present in the Internet Routing Table: 9496
ARIN Region origin ASes announcing only one prefix: 3390
ARIN Region transit ASes present in the Internet Routing Table: 914
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 231184928
Equivalent to 13 /8s, 199 /16s and 154 /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: 26833
Total RIPE prefixes after maximum aggregation: 18941
Prefixes being announced from the RIPE address blocks: 23663
Unique aggregates announced from the RIPE address blocks: 15765
RIPE Region origin ASes present in the Internet Routing Table: 5798
RIPE Region origin ASes announcing only one prefix: 3115
RIPE Region transit ASes present in the Internet Routing Table: 997
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 170425152
Equivalent to 10 /8s, 40 /16s and 123 /24s
Percentage of available RIPE address space announced: 59.8
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: 6402
Total LACNIC prefixes after maximum aggregation: 2269
Prefixes being announced from the LACNIC address blocks: 6164
Unique aggregates announced from the LACNIC address blocks: 3528
LACNIC Region origin ASes present in the Internet Routing Table: 391
LACNIC Region origin ASes announcing only one prefix: 118
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15858944
Equivalent to 0 /8s, 241 /16s and 253 /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: 1252
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 830
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: 12
Average AfriNIC Region AS path length visible: 4.5
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 832 4193 156 Data Communications Bureau
1221 808 1184 582 Telstra Pty Ltd
4766 565 3409 266 Korea Internet Exchange for "
9583 531 41 102 Satyam Infoway Ltd.,
4755 366 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 356 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 352 1840 326 SINET Japan
17676 348 5180 39 XTAGE CORPORATION
17557 316 23 156 Pakistan Telecom
703 313 342 242 UUNET
2764 284 274 232 connect.com.au pty ltd
7474 272 270 202 Optus Communications Pty Ltd
4802 233 28 143 Wantree Development
9942 232 73 127 COMindico Australia
9800 228 372 66 CHINA UNICOM
9498 225 49 50 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 201 2256 105 chinanet IDC center beijing n
17974 195 51 94 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1419 6760 972 AT&T WorldNet Services
701 1274 8423 916 UUNET Technologies, Inc.
1239 936 2866 625 Sprint
2386 824 560 588 AT&T Data Communications Serv
4323 779 633 216 Time Warner Telecom
18566 744 208 6 Covad Communications
721 715 21012 294 DLA Systems Automation Center
6197 714 363 340 BellSouth Network Solutions,
209 620 3431 497 Qwest
20115 580 407 292 Charter Communications
3356 567 10950 436 Level 3 Communications, LLC
6347 541 296 118 SAVVIS Communications Corpora
852 511 1141 398 Telus Advanced Communications
7843 479 659 125 Adelphia Corp.
3561 468 2390 348 Cable & Wireless USA
6198 448 401 207 BellSouth Network Solutions,
7132 435 8029 377 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
6467 393 149 30 E.Spire Communications, Inc.
5668 392 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 643 2031 533 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 276 446 262 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 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
5400 156 209 126 BT Ignite European Backbone
6746 154 29 131 Dynamic Network Technologies,
25186 153 154 109 France Telecom Transpac's Tra
3303 147 610 130 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 135 16 17 Bulgarian Telecommunication C
12302 128 18 34 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 402 138 67 ImpSat
11172 358 100 54 Servicios Alestra S.A de C.V
8151 281 406 129 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
6503 135 187 91 AVANTEL, S.A.
6505 135 90 93 Global One Communicaoes Ltda
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 81 41 3 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
10292 69 6 27 TELECOMMUNICATIONS OF JAMAICA
14117 69 5 4 Telefonica del Sur S.A.
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 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 24 1 3 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
21280 14 2 3 Swift Global Kenya Ltd.Is an
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 744 738 Covad Communications
4134 832 676 Data Communications Bureau
4323 779 563 Time Warner Telecom
9583 531 429 Satyam Infoway Ltd.,
6347 541 423 SAVVIS Communications Corpora
721 715 421 DLA Systems Automation Center
6197 714 374 BellSouth Network Solutions,
5668 392 374 Century Telephone
22773 392 373 Cox Communications, Inc. Atla
6467 393 363 E.Spire Communications, Inc.
701 1274 358 UUNET Technologies, Inc.
7843 479 354 Adelphia Corp.
27364 365 346 Armstrong Cable Services
6140 402 335 ImpSat
22909 365 330 Comcast Cable Corporation
9929 356 322 China Netcom Corp.
4755 366 316 Videsh Sanchar Nigam Ltd. Aut
1239 936 311 Sprint
17676 348 309 XTAGE CORPORATION
11172 358 304 Servicios Alestra S.A de C.V
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
37799 UNALLOCATED 195.214.216.0/21 30799 VERANET Internet Ser
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
64586 PRIVATE 219.146.232.0/21 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
64586 PRIVATE 222.175.64.0/19 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
192.135.50.0/24 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 /11:15 /12:63
/13:133 /14:303 /15:541 /16:8029 /17:2200 /18:3827
/19:9747 /20:10253 /21:7726 /22:10645 /23:12271 /24:79562
/25:243 /26:190 /27:100 /28:46 /29:33 /30:88
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 744 Covad Communications
2386 591 824 AT&T Data Communications Serv
6197 566 714 BellSouth Network Solutions,
7018 557 1419 AT&T WorldNet Services
702 396 643 UUNET - Commercial IP service
6347 390 541 SAVVIS Communications Corpora
9583 371 531 Satyam Infoway Ltd.,
1239 369 936 Sprint
4766 368 565 Korea Internet Exchange for "
701 357 1274 UUNET Technologies, Inc.
27364 349 365 Armstrong Cable Services
5668 342 392 Century Telephone
6198 327 448 BellSouth Network Solutions,
20115 302 580 Charter Communications
6467 289 393 E.Spire Communications, Inc.
9929 285 356 China Netcom Corp.
6517 266 293 Yipes Communications, Inc.
13609 260 306 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 12:1408 13:1 15:5 16:2
17:3 20:9 24:703 32:78 33:3 38:80
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:468 62:502 63:1833 64:2294 65:2051
66:2433 67:385 68:536 69:696 70:35 80:516
81:368 82:237 83:142 84:26 128:104 129:171
130:86 131:190 132:26 134:187 135:17 136:186
137:50 138:168 139:39 140:162 141:107 142:118
143:67 144:155 145:41 146:292 147:96 148:416
149:107 150:84 151:70 152:169 153:68 154:2
155:129 156:58 157:79 158:141 159:160 160:56
161:71 162:389 163:79 164:205 165:159 166:109
167:221 168:288 169:115 170:270 171:9 192:5600
193:2885 194:2115 195:1466 196:587 198:3669 199:3251
200:3746 201:16 202:4809 203:5652 204:3224 205:2091
206:2314 207:2534 208:2143 209:3061 210:1484 211:595
212:1026 213:1188 214:130 215:31 216:3724 217:995
218:191 219:85 220:246 221:37 222:43
End of report
