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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 20 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143981
Prefixes after maximum aggregation: 85861
Unique aggregates announced to Internet: 69405
Total ASes present in the Internet Routing Table: 17826
Origin-only ASes present in the Internet Routing Table: 15447
Origin ASes announcing only one prefix: 7266
Transit ASes present in the Internet Routing Table: 2379
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1330481448
Equivalent to 79 /8s, 77 /16s and 137 /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: 65259
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27814
Total APNIC prefixes after maximum aggregation: 14050
Prefixes being announced from the APNIC address blocks: 26027
Unique aggregates announced from the APNIC address blocks: 14142
APNIC Region origin ASes present in the Internet Routing Table: 2107
APNIC Region origin ASes announcing only one prefix: 622
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 157553920
Equivalent to 9 /8s, 100 /16s and 21 /24s
Percentage of available APNIC address space announced: 71.9
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: 82059
Total ARIN prefixes after maximum aggregation: 50054
Prefixes being announced from the ARIN address blocks: 63565
Unique aggregates announced from the ARIN address blocks: 22344
ARIN Region origin ASes present in the Internet Routing Table: 9420
ARIN Region origin ASes announcing only one prefix: 3393
ARIN Region transit ASes present in the Internet Routing Table: 927
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 230155808
Equivalent to 13 /8s, 183 /16s and 230 /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: 26600
Total RIPE prefixes after maximum aggregation: 18822
Prefixes being announced from the RIPE address blocks: 23392
Unique aggregates announced from the RIPE address blocks: 15599
RIPE Region origin ASes present in the Internet Routing Table: 5749
RIPE Region origin ASes announcing only one prefix: 3116
RIPE Region transit ASes present in the Internet Routing Table: 998
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 169611072
Equivalent to 10 /8s, 28 /16s and 15 /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: 6284
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 6022
Unique aggregates announced from the LACNIC address blocks: 3538
LACNIC Region origin ASes present in the Internet Routing Table: 386
LACNIC Region origin ASes announcing only one prefix: 114
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: 15605760
Equivalent to 0 /8s, 238 /16s and 32 /24s
Percentage of available LACNIC address space announced: 46.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1216
Total AfriNIC prefixes after maximum aggregation: 682
Prefixes being announced from the AfriNIC address blocks: 821
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 811 1184 585 Telstra Pty Ltd
4766 551 2897 265 Korea Internet Exchange for "
9583 524 40 105 Satyam Infoway Ltd.,
4755 365 133 48 Videsh Sanchar Nigam Ltd. Aut
9929 361 161 33 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 345 5132 37 XTAGE CORPORATION
17557 327 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 291 275 238 connect.com.au pty ltd
7474 264 268 201 Optus Communications Pty Ltd
17633 237 56 6 ASN for Shandong Provincial N
9942 236 73 129 COMindico Australia
4802 230 25 139 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 200 2246 109 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1398 6787 972 AT&T WorldNet Services
701 1279 8423 922 UUNET Technologies, Inc.
1239 928 2871 619 Sprint
6347 801 373 121 SAVVIS Communications Corpora
4323 778 632 216 Time Warner Telecom
18566 741 193 8 Covad Communications
6197 724 504 299 BellSouth Network Solutions,
209 614 3430 497 Qwest
721 599 20798 273 DLA Systems Automation Center
20115 575 383 297 Charter Communications
3356 563 10935 434 Level 3 Communications, LLC
852 510 1142 398 Telus Advanced Communications
7843 507 690 119 Adelphia Corp.
6198 455 429 205 BellSouth Network Solutions,
7132 432 8029 374 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
2386 408 535 230 AT&T Data Communications Serv
22773 405 960 18 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
376 385 363 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 649 2020 540 UUNET - Commercial IP service
3320 300 2469 237 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
3246 216 483 213 Song Networks
13083 216 51 8 Mannesmann Datenverarbeitung
1257 214 747 183 SWIPnet Swedish IP Network
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 163 155 111 France Telecom Transpac's Tra
5400 158 274 129 BT Ignite European Backbone
6746 153 29 130 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
3269 143 1195 65 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 358 100 54 Servicios Alestra S.A de C.V
6140 338 137 65 ImpSat
8151 288 392 134 UniNet S.A. de C.V.
16814 206 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 154 11 24 Keytech SA
6505 151 91 100 Global One Communicaoes Ltda
6503 129 203 87 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 90 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 79 7 19 Sinectis S.A.
15311 76 21 36 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
14259 67 4 5 GTD Internet S.A.
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 45 16 1 Botswana Telecommunications C
20928 44 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
9129 32 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 25 10 19 Johnnic e-Ventures
12455 22 4 2 Jambonet Autonomous system
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
11845 13 9 11 Data Pro Business Online
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 741 733 Covad Communications
6347 801 680 SAVVIS Communications Corpora
4134 830 675 Data Communications Bureau
4323 778 562 Time Warner Telecom
6197 724 425 BellSouth Network Solutions,
9583 524 419 Satyam Infoway Ltd.,
7843 507 388 Adelphia Corp.
22773 405 387 Cox Communications, Inc. Atla
5668 383 365 Century Telephone
701 1279 357 UUNET Technologies, Inc.
27364 350 331 Armstrong Cable Services
9929 361 328 China Netcom Corp.
721 599 326 DLA Systems Automation Center
22909 358 323 Comcast Cable Corporation
6467 347 318 E.Spire Communications, Inc.
4755 365 317 Videsh Sanchar Nigam Ltd. Aut
1239 928 309 Sprint
17676 345 308 XTAGE CORPORATION
11172 358 304 Servicios Alestra S.A de C.V
4355 388 289 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64606 PRIVATE 80.255.192.0/21 2529 Demon Internet
64606 PRIVATE 80.255.200.0/21 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
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 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 /15:542 /16:7970 /17:2167 /18:3774
/19:9706 /20:10178 /21:7505 /22:10423 /23:12054 /24:78452
/25:229 /26:189 /27:100 /28:36 /29:9 /30:75
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 741 Covad Communications
6347 603 801 SAVVIS Communications Corpora
6197 568 724 BellSouth Network Solutions,
7018 539 1398 AT&T WorldNet Services
702 403 649 UUNET - Commercial IP service
9583 366 524 Satyam Infoway Ltd.,
701 365 1279 UUNET Technologies, Inc.
1239 364 928 Sprint
4766 359 551 Korea Internet Exchange for "
27364 336 350 Armstrong Cable Services
5668 335 383 Century Telephone
6198 334 455 BellSouth Network Solutions,
20115 303 575 Charter Communications
9929 289 361 China Netcom Corp.
6517 264 291 Yipes Communications, Inc.
13609 257 300 Choice One Communications Inc
6467 255 347 E.Spire Communications, Inc.
3320 247 300 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 24:718 32:66 33:2 38:79
40:54 44:4 55:1 56:3 57:16 60:6
61:459 62:509 63:1848 64:2239 65:2041 66:2433
67:360 68:545 69:694 70:65 80:535 81:359
82:195 83:122 84:33 128:95 129:174 130:86
131:179 132:23 134:187 135:17 136:183 137:48
138:169 139:35 140:161 141:106 142:119 143:59
144:100 145:42 146:288 147:93 148:419 149:110
150:88 151:70 152:163 153:68 154:2 155:129
156:58 157:71 158:142 159:147 160:54 161:70
162:390 163:79 164:179 165:161 166:115 167:221
168:283 169:115 170:274 171:9 192:5572 193:2856
194:2081 195:1446 196:579 198:3661 199:3259 200:3663
201:9 202:4822 203:5665 204:3151 205:2071 206:2300
207:2487 208:2154 209:3013 210:1447 211:587 212:988
213:1191 214:93 215:30 216:3775 217:990 218:183
219:123 220:246 221:32 222:135
End of report
