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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 07 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 145778
Prefixes after maximum aggregation: 86944
Unique aggregates announced to Internet: 69686
Total ASes present in the Internet Routing Table: 17936
Origin-only ASes present in the Internet Routing Table: 15584
Origin ASes announcing only one prefix: 7247
Transit ASes present in the Internet Routing Table: 2352
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: 38
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1334070724
Equivalent to 79 /8s, 132 /16s and 77 /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: 66595
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27965
Total APNIC prefixes after maximum aggregation: 14184
Prefixes being announced from the APNIC address blocks: 26182
Unique aggregates announced from the APNIC address blocks: 14090
APNIC Region origin ASes present in the Internet Routing Table: 2129
APNIC Region origin ASes announcing only one prefix: 631
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 160809600
Equivalent to 9 /8s, 149 /16s and 194 /24s
Percentage of available APNIC address space announced: 73.4
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: 83407
Total ARIN prefixes after maximum aggregation: 50891
Prefixes being announced from the ARIN address blocks: 63795
Unique aggregates announced from the ARIN address blocks: 22557
ARIN Region origin ASes present in the Internet Routing Table: 9481
ARIN Region origin ASes announcing only one prefix: 3382
ARIN Region transit ASes present in the Internet Routing Table: 917
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 231159072
Equivalent to 13 /8s, 199 /16s and 53 /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: 26755
Total RIPE prefixes after maximum aggregation: 18913
Prefixes being announced from the RIPE address blocks: 23591
Unique aggregates announced from the RIPE address blocks: 15748
RIPE Region origin ASes present in the Internet Routing Table: 5777
RIPE Region origin ASes announcing only one prefix: 3098
RIPE Region transit ASes present in the Internet Routing Table: 986
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 170209344
Equivalent to 10 /8s, 37 /16s and 48 /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: 6367
Total LACNIC prefixes after maximum aggregation: 2266
Prefixes being announced from the LACNIC address blocks: 6139
Unique aggregates announced from the LACNIC address blocks: 3529
LACNIC Region origin ASes present in the Internet Routing Table: 388
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: 15
Number of LACNIC addresses announced to Internet: 15859200
Equivalent to 0 /8s, 241 /16s and 254 /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: 1246
Total AfriNIC prefixes after maximum aggregation: 687
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: 12
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 808 1184 582 Telstra Pty Ltd
4766 565 3409 266 Korea Internet Exchange for "
9583 529 41 105 Satyam Infoway Ltd.,
4755 365 133 49 Videsh Sanchar Nigam Ltd. Aut
9929 357 162 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
703 313 342 242 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 50 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 201 2256 105 chinanet IDC center beijing n
17974 197 52 96 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1408 6759 970 AT&T WorldNet Services
701 1272 8423 914 UUNET Technologies, Inc.
1239 910 2857 604 Sprint
2386 822 560 586 AT&T Data Communications Serv
4323 779 633 216 Time Warner Telecom
18566 744 208 6 Covad Communications
721 711 21004 294 DLA Systems Automation Center
6197 698 359 329 BellSouth Network Solutions,
209 618 3430 495 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 479 658 130 Adelphia Corp.
3561 466 2390 348 Cable & Wireless USA
7132 435 8029 377 SBC Internet Services
6198 430 383 203 BellSouth Network Solutions,
705 429 163 271 UUNET Technologies, Inc.
22773 392 960 19 Cox Communications, Inc. Atla
5668 389 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2032 537 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 135 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
6140 380 138 67 ImpSat
11172 356 99 53 Servicios Alestra S.A de C.V
8151 284 406 131 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 134 90 92 Global One Communicaoes Ltda
6503 132 187 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 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 251 632 218 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 45 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
6713 27 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 833 677 Data Communications Bureau
4323 779 563 Time Warner Telecom
9583 529 424 Satyam Infoway Ltd.,
6347 541 423 SAVVIS Communications Corpora
721 711 417 DLA Systems Automation Center
22773 392 373 Cox Communications, Inc. Atla
5668 389 371 Century Telephone
6197 698 369 BellSouth Network Solutions,
701 1272 358 UUNET Technologies, Inc.
6467 383 353 E.Spire Communications, Inc.
7843 479 349 Adelphia Corp.
27364 365 346 Armstrong Cable Services
22909 365 330 Comcast Cable Corporation
9929 357 323 China Netcom Corp.
4755 365 316 Videsh Sanchar Nigam Ltd. Aut
6140 380 313 ImpSat
17676 348 309 XTAGE CORPORATION
1239 910 306 Sprint
11172 356 303 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
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
/13:134 /14:304 /15:540 /16:8021 /17:2202 /18:3814
/19:9740 /20:10239 /21:7699 /22:10624 /23:12249 /24:79369
/25:242 /26:187 /27:99 /28:46 /29:32 /30:88
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 744 Covad Communications
2386 591 822 AT&T Data Communications Serv
6197 552 698 BellSouth Network Solutions,
7018 551 1408 AT&T WorldNet Services
702 395 647 UUNET - Commercial IP service
6347 390 541 SAVVIS Communications Corpora
9583 369 529 Satyam Infoway Ltd.,
4766 368 565 Korea Internet Exchange for "
701 357 1272 UUNET Technologies, Inc.
1239 352 910 Sprint
27364 349 365 Armstrong Cable Services
5668 340 389 Century Telephone
6198 312 430 BellSouth Network Solutions,
20115 302 580 Charter Communications
9929 286 357 China Netcom Corp.
6467 282 383 E.Spire Communications, Inc.
6517 265 292 Yipes Communications, Inc.
13609 260 303 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 12:1402 13:1 15:5 16:2
17:3 20:9 24:703 32:79 33:2 38:79
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:464 62:510 63:1833 64:2291 65:2048
66:2440 67:367 68:530 69:698 70:35 80:515
81:367 82:234 83:140 84:26 128:104 129:171
130:87 131:190 132:26 134:187 135:17 136:185
137:50 138:168 139:38 140:158 141:106 142:120
143:66 144:155 145:41 146:292 147:92 148:409
149:104 150:63 151:70 152:168 153:68 154:2
155:129 156:58 157:79 158:141 159:160 160:56
161:71 162:389 163:79 164:205 165:159 166:109
167:220 168:288 169:111 170:271 171:9 192:5589
193:2876 194:2116 195:1470 196:590 198:3662 199:3243
200:3729 201:16 202:4807 203:5654 204:3212 205:2083
206:2311 207:2533 208:2141 209:3046 210:1481 211:595
212:1016 213:1181 214:130 215:31 216:3717 217:995
218:187 219:85 220:245 221:37 222:43
End of report
