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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 14 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 183936
Prefixes after maximum aggregation: 102055
Unique aggregates announced to Internet: 89528
Total ASes present in the Internet Routing Table: 21719
Origin-only ASes present in the Internet Routing Table: 18871
Origin ASes announcing only one prefix: 8966
Transit ASes present in the Internet Routing Table: 2848
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 29
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1509924704
Equivalent to 89 /8s, 255 /16s and 159 /24s
Percentage of available address space announced: 40.7
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 89979
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38828
Total APNIC prefixes after maximum aggregation: 16343
Prefixes being announced from the APNIC address blocks: 36557
Unique aggregates announced from the APNIC address blocks: 17773
APNIC Region origin ASes present in the Internet Routing Table: 2498
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 389
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 217353440
Equivalent to 12 /8s, 244 /16s and 140 /24s
Percentage of available APNIC address space announced: 68.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 96340
Total ARIN prefixes after maximum aggregation: 56891
Prefixes being announced from the ARIN address blocks: 75594
Unique aggregates announced from the ARIN address blocks: 28764
ARIN Region origin ASes present in the Internet Routing Table: 10577
ARIN Region origin ASes announcing only one prefix: 3945
ARIN Region transit ASes present in the Internet Routing Table: 975
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 290903040
Equivalent to 17 /8s, 86 /16s and 212 /24s
Percentage of available ARIN address space announced: 72.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 36477
Total RIPE prefixes after maximum aggregation: 24425
Prefixes being announced from the RIPE address blocks: 33487
Unique aggregates announced from the RIPE address blocks: 22599
RIPE Region origin ASes present in the Internet Routing Table: 7750
RIPE Region origin ASes announcing only one prefix: 4060
RIPE Region transit ASes present in the Internet Routing Table: 1294
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 241845248
Equivalent to 14 /8s, 106 /16s and 68 /24s
Percentage of available RIPE address space announced: 72.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10290
Total LACNIC prefixes after maximum aggregation: 3499
Prefixes being announced from the LACNIC address blocks: 8475
Unique aggregates announced from the LACNIC address blocks: 5148
LACNIC Region origin ASes present in the Internet Routing Table: 679
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 25833472
Equivalent to 1 /8s, 138 /16s and 48 /24s
Percentage of available LACNIC address space announced: 38.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1992
Total AfriNIC prefixes after maximum aggregation: 897
Prefixes being announced from the AfriNIC address blocks: 1327
Unique aggregates announced from the AfriNIC address blocks: 908
AfriNIC Region origin ASes present in the Internet Routing Table: 147
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3794432
Equivalent to 0 /8s, 57 /16s and 230 /24s
Percentage of available AfriNIC address space announced: 11.3
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 988 6928 208 CHINANET-BACKBONE
4755 874 258 71 Videsh Sanchar Nigam Ltd. Aut
9583 867 109 16 Sify Limited
4766 676 3923 300 Korea Telecom (KIX)
1221 652 1428 470 Telstra Pty Ltd
9498 562 212 72 BHARTI BT INTERNET LTD.
7545 520 108 70 TPG Internet Pty Ltd
17488 516 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 414 95 82 Primus Telecommunications
4802 371 75 166 Wantree Development
2907 335 1749 313 SINET Japan
18101 333 68 23 Reliance Infocom Ltd Internet
17974 332 81 41 PT TELEKOMUNIKASI INDONESIA
9929 325 216 52 China Netcom Corp.
17557 318 25 162 Pakistan Telecom
17849 316 20 105 Telecommunications Technology
7474 304 211 231 SingTel Optus Pty Ltd
4780 281 226 16 Digital United Inc.
9837 271 78 167 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6263 958 AT&T WorldNet Services
4323 1227 711 235 Time Warner Telecom
721 1009 21962 307 DLA Systems Automation Center
6197 1003 619 468 BellSouth Network Solutions,
174 976 5784 921 Cogent Communications
701 946 8064 781 UUNET Technologies, Inc.
18566 918 272 8 Covad Communications
2386 870 520 662 AT&T Data Communications Serv
1239 848 2786 596 Sprint
19029 778 152 112 New Edge Networks
209 696 3608 541 Qwest
20115 669 586 361 Charter Communications
19262 663 1953 157 Verizon Global Networks
22773 639 1480 40 Cox Communications, Inc.
11492 636 86 20 Cable One
7011 598 208 388 Citizens Utilities
6198 584 502 238 BellSouth Network Solutions,
852 577 1088 383 Telus Advanced Communications
855 566 244 64 Canadian Research Network
19916 563 49 54 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 581 1951 457 UUNET - Commercial IP service
3301 306 1071 291 TeliaNet Sweden
3352 306 1548 32 Ibernet, Internet Access Netw
8220 288 471 267 COLT Telecommunications
3320 279 3477 232 Deutsche Telekom AG
680 244 2025 241 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 225 88 197 Dynamic Network Technologies,
8708 220 276 203 Romania Data Systems S.A.
1257 202 712 173 SWIPnet Swedish IP Network
8551 202 197 24 Bezeq International
3269 191 2037 73 TELECOM ITALIA
24863 190 40 9 LINKdotNET AS number
3215 182 1502 87 France Telecom Transpac
5515 177 839 124 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 167 328 136 BT Ignite European Backbone
8866 167 37 13 Bulgarian Telecommunication C
6830 166 765 35 UPC Distribution Services
9121 162 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 578 1050 228 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 312 111 80 Servicios Alestra S.A de C.V
16814 290 18 7 NSS, S.A.
14117 184 11 6 Telefonica del Sur S.A.
7303 158 74 24 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 130 80 3 Cable-Wireless Panama
5639 127 12 9 Telecommunications Services o
19169 124 8 30 Telconet
6503 122 149 76 AVANTEL, S.A.
10481 121 48 8 Prima S.A.
21826 120 16 19 INTERCABLE
6505 106 88 78 Global One Communicaoes Ltda
23216 101 20 7 RAMtelecom Telecomunicaciones
14522 99 12 4 SatNet S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
19429 95 52 42 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 281 803 236 The Internet Solution
8452 163 60 7 TEDATA
2018 124 314 105 Tertiary Education Network
15475 123 84 4 Nile Online
5536 122 8 18 Internet Egypt Network
6713 106 103 12 Itissalat Al-MAGHRIB
2905 75 155 67 The Internetworking Company o
24835 62 50 7 RAYA Telecom - Egypt
20928 58 16 2 Noor Advanced Technologies AS
5713 43 294 35 Telkom SA Ltd
11845 38 9 11 Data Pro Business Online
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
12455 26 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 25 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1227 992 Time Warner Telecom
18566 918 910 Covad Communications
9583 867 851 Sify Limited
4755 874 803 Videsh Sanchar Nigam Ltd. Aut
4134 988 780 CHINANET-BACKBONE
721 1009 702 DLA Systems Automation Center
19029 778 666 New Edge Networks
11492 636 616 Cable One
22773 639 599 Cox Communications, Inc.
6197 1003 535 BellSouth Network Solutions,
19916 563 509 OLM LLC
17488 516 509 Hathway IP Over Cable Interne
19262 663 506 Verizon Global Networks
855 566 502 Canadian Research Network
5668 520 495 CenturyTel Internet Holdings,
9498 562 490 BHARTI BT INTERNET LTD.
7757 471 452 AT&T Broadband
7545 520 450 TPG Internet Pty Ltd
3602 531 422 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
35650 UNALLOCATED 87.117.64.0/18 16238 AS for Coulomb
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
65505 PRIVATE 206.252.200.192/27 8002 Stealth Communicatio
65518 PRIVATE 211.144.192.0/19 24421 *
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
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 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 /8:18 /9:9 /10:8 /11:25 /12:87
/13:198 /14:353 /15:695 /16:8740 /17:3113 /18:5138
/19:11398 /20:12776 /21:10930 /22:14035 /23:15252 /24:100222
/25:356 /26:235 /27:200 /28:65 /29:23 /30:30
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 901 918 Covad Communications
6197 793 1003 BellSouth Network Solutions,
7018 789 1497 AT&T WorldNet Services
19029 706 778 New Edge Networks
9583 686 867 Sify Limited
11492 627 636 Cable One
2386 594 870 AT&T Data Communications Serv
4323 592 1227 Time Warner Telecom
19916 557 563 OLM LLC
7011 512 598 Citizens Utilities
4766 485 676 Korea Telecom (KIX)
7757 453 471 AT&T Broadband
6198 444 584 BellSouth Network Solutions,
855 440 566 Canadian Research Network
5668 402 520 CenturyTel Internet Holdings,
1239 374 848 Sprint
702 365 581 UUNET - Commercial IP service
15270 353 383 PaeTec.net -a division of Pae
6517 347 376 Yipes Communications, Inc.
22773 335 639 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1628 13:1 15:12 16:3
17:3 18:4 20:43 24:871 25:1 30:2
32:67 38:205 40:54 44:3 47:6 52:4
55:1 56:3 57:34 58:126 59:171 60:177
61:824 62:788 63:1899 64:3117 65:2221 66:3084
67:610 68:678 69:1445 70:308 71:59 72:639
73:23 74:22 80:770 81:618 82:539 83:361
84:339 85:461 86:371 87:239 88:33 89:66
124:185 125:272 128:158 129:173 130:102 131:320
132:31 133:8 134:146 135:47 136:175 137:65
138:191 139:74 140:482 141:136 142:414 143:156
144:230 145:39 146:310 147:134 148:335 149:185
150:114 151:78 152:65 153:102 154:6 155:194
156:94 157:120 158:164 159:163 160:88 161:71
162:229 163:144 164:179 165:173 166:147 167:234
168:476 169:140 170:323 171:12 172:1 190:37
192:5757 193:3390 194:2527 195:1772 196:784 198:3882
199:3259 200:4208 201:626 202:6532 203:6910 204:3912
205:2087 206:2423 207:2927 208:2026 209:3762 210:1969
211:820 212:1270 213:1477 214:341 215:42 216:4103
217:1162 218:239 219:165 220:649 221:348 222:157
End of report
