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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 25 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 144035
Prefixes after maximum aggregation: 85791
Unique aggregates announced to Internet: 69555
Total ASes present in the Internet Routing Table: 17865
Origin-only ASes present in the Internet Routing Table: 15491
Origin ASes announcing only one prefix: 7289
Transit ASes present in the Internet Routing Table: 2374
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: 22
Prefixes from unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1330853928
Equivalent to 79 /8s, 83 /16s and 56 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65335
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27787
Total APNIC prefixes after maximum aggregation: 13942
Prefixes being announced from the APNIC address blocks: 26009
Unique aggregates announced from the APNIC address blocks: 14114
APNIC Region origin ASes present in the Internet Routing Table: 2111
APNIC Region origin ASes announcing only one prefix: 623
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 157762944
Equivalent to 9 /8s, 103 /16s and 69 /24s
Percentage of available APNIC address space announced: 72.0
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: 82038
Total ARIN prefixes after maximum aggregation: 50052
Prefixes being announced from the ARIN address blocks: 63499
Unique aggregates announced from the ARIN address blocks: 22470
ARIN Region origin ASes present in the Internet Routing Table: 9436
ARIN Region origin ASes announcing only one prefix: 3408
ARIN Region transit ASes present in the Internet Routing Table: 928
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 230321440
Equivalent to 13 /8s, 186 /16s and 109 /24s
Percentage of available ARIN address space announced: 68.6
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: 26689
Total RIPE prefixes after maximum aggregation: 18858
Prefixes being announced from the RIPE address blocks: 23470
Unique aggregates announced from the RIPE address blocks: 15654
RIPE Region origin ASes present in the Internet Routing Table: 5769
RIPE Region origin ASes announcing only one prefix: 3122
RIPE Region transit ASes present in the Internet Routing Table: 1000
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 169708864
Equivalent to 10 /8s, 29 /16s and 141 /24s
Percentage of available RIPE address space announced: 59.5
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: 6292
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 6067
Unique aggregates announced from the LACNIC address blocks: 3537
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: 76
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15758848
Equivalent to 0 /8s, 240 /16s and 118 /24s
Percentage of available LACNIC address space announced: 47.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1214
Total AfriNIC prefixes after maximum aggregation: 686
Prefixes being announced from the AfriNIC address blocks: 822
Unique aggregates announced from the AfriNIC address blocks: 661
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: 13
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1994496
Equivalent to 0 /8s, 30 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 11.9
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 830 4161 155 Data Communications Bureau
1221 810 1184 584 Telstra Pty Ltd
4766 559 2897 265 Korea Internet Exchange for "
9583 528 41 106 Satyam Infoway Ltd.,
4755 369 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 362 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 346 5148 38 XTAGE CORPORATION
17557 328 23 164 Pakistan Telecom
703 315 342 243 UUNET
2764 286 274 233 connect.com.au pty ltd
7474 263 268 200 Optus Communications Pty Ltd
9942 236 73 129 COMindico Australia
4802 232 26 141 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 222 49 49 BHARTI BT INTERNET LTD.
4837 202 2246 109 chinanet IDC center beijing n
10036 202 18 183 C&M Communication Co. Ltd.
17974 197 61 9 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1403 6800 972 AT&T WorldNet Services
701 1276 8423 921 UUNET Technologies, Inc.
1239 928 2855 617 Sprint
4323 782 632 220 Time Warner Telecom
18566 742 193 9 Covad Communications
6197 717 361 339 BellSouth Network Solutions,
6347 665 330 121 SAVVIS Communications Corpora
209 616 3430 498 Qwest
721 602 20862 276 DLA Systems Automation Center
20115 579 386 299 Charter Communications
3356 565 10934 435 Level 3 Communications, LLC
852 510 1141 398 Telus Advanced Communications
7843 489 673 104 Adelphia Corp.
3561 455 2389 346 Cable & Wireless USA
6198 455 398 206 BellSouth Network Solutions,
7132 432 8029 374 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
2386 410 535 232 AT&T Data Communications Serv
22773 410 960 18 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 654 2020 545 UUNET - Commercial IP service
3320 301 2469 238 Deutsche Telekom AG
3301 282 1098 272 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
13083 217 51 8 Mannesmann Datenverarbeitung
1257 214 747 183 SWIPnet Swedish IP Network
3246 214 473 211 Song Networks
8708 203 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 183 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 162 155 110 France Telecom Transpac's Tra
5400 158 274 129 BT Ignite European Backbone
6746 153 29 130 Dynamic Network Technologies,
719 151 288 102 LANLINK autonomous system
3269 145 1195 66 TELECOM ITALIA
8866 133 15 15 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 357 99 53 Servicios Alestra S.A de C.V
6140 334 137 64 ImpSat
8151 286 392 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 156 10 23 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 129 203 87 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 89 9 30 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
11311 77 7 25 Sinectis S.A.
5639 76 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.
11340 68 21 37 Red Universitaria Nacional
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
14988 49 16 1 Botswana Telecommunications C
20928 44 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
9129 29 3 4 UUNET Kenya
6713 27 42 10 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
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
21280 13 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 742 733 Covad Communications
4134 830 675 Data Communications Bureau
4323 782 562 Time Warner Telecom
6347 665 544 SAVVIS Communications Corpora
9583 528 422 Satyam Infoway Ltd.,
22773 410 392 Cox Communications, Inc. Atla
7843 489 385 Adelphia Corp.
6197 717 378 BellSouth Network Solutions,
5668 385 367 Century Telephone
701 1276 355 UUNET Technologies, Inc.
6467 369 340 E.Spire Communications, Inc.
27364 350 331 Armstrong Cable Services
9929 362 328 China Netcom Corp.
721 602 326 DLA Systems Automation Center
22909 360 325 Comcast Cable Corporation
4755 369 319 Videsh Sanchar Nigam Ltd. Aut
1239 928 311 Sprint
17676 346 308 XTAGE CORPORATION
11172 357 304 Servicios Alestra S.A de C.V
4766 559 294 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64606 PRIVATE 80.255.192.0/20 2529 Demon Internet
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 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
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 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 /15:543 /16:7975 /17:2164 /18:3774
/19:9714 /20:10200 /21:7541 /22:10449 /23:12050 /24:78411
/25:237 /26:189 /27:98 /28:37 /29:10 /30:72
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 742 Covad Communications
6197 569 717 BellSouth Network Solutions,
7018 541 1403 AT&T WorldNet Services
6347 485 665 SAVVIS Communications Corpora
702 405 654 UUNET - Commercial IP service
9583 370 528 Satyam Infoway Ltd.,
4766 367 559 Korea Internet Exchange for "
1239 366 928 Sprint
701 360 1276 UUNET Technologies, Inc.
5668 337 385 Century Telephone
27364 336 350 Armstrong Cable Services
6198 335 455 BellSouth Network Solutions,
20115 305 579 Charter Communications
9929 289 362 China Netcom Corp.
6467 272 369 E.Spire Communications, Inc.
6517 263 290 Yipes Communications, Inc.
13609 257 300 Choice One Communications Inc
3320 248 301 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
14824 242 265 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:850 13:1 15:5 16:2
17:3 20:9 24:701 32:66 33:2 38:80
40:54 44:4 55:1 56:3 57:16 60:6
61:466 62:513 63:1849 64:2232 65:2053 66:2442
67:359 68:544 69:681 70:34 80:536 81:364
82:205 83:125 84:34 128:95 129:171 130:85
131:172 132:23 134:184 135:17 136:183 137:57
138:168 139:37 140:158 141:106 142:119 143:59
144:101 145:42 146:289 147:93 148:419 149:110
150:88 151:70 152:159 153:68 154:2 155:130
156:59 157:71 158:142 159:159 160:54 161:70
162:390 163:79 164:179 165:161 166:115 167:221
168:282 169:114 170:274 171:9 192:5571 193:2861
194:2089 195:1452 196:580 198:3645 199:3259 200:3681
201:15 202:4791 203:5665 204:3153 205:2067 206:2291
207:2482 208:2152 209:3000 210:1454 211:590 212:993
213:1197 214:92 215:30 216:3798 217:991 218:184
219:111 220:245 221:33 222:109
End of report
