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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 15 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 184120
Prefixes after maximum aggregation: 102130
Unique aggregates announced to Internet: 89663
Total ASes present in the Internet Routing Table: 21746
Origin-only ASes present in the Internet Routing Table: 18892
Origin ASes announcing only one prefix: 8980
Transit ASes present in the Internet Routing Table: 2854
Transit-only ASes present in the Internet Routing Table: 71
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1510477216
Equivalent to 90 /8s, 8 /16s and 13 /24s
Percentage of available address space announced: 40.8
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 90101
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38871
Total APNIC prefixes after maximum aggregation: 16348
Prefixes being announced from the APNIC address blocks: 36601
Unique aggregates announced from the APNIC address blocks: 17792
APNIC Region origin ASes present in the Internet Routing Table: 2505
APNIC Region origin ASes announcing only one prefix: 698
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: 16
Number of APNIC addresses announced to Internet: 217399264
Equivalent to 12 /8s, 245 /16s and 63 /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: 96416
Total ARIN prefixes after maximum aggregation: 56926
Prefixes being announced from the ARIN address blocks: 75676
Unique aggregates announced from the ARIN address blocks: 28823
ARIN Region origin ASes present in the Internet Routing Table: 10582
ARIN Region origin ASes announcing only one prefix: 3946
ARIN Region transit ASes present in the Internet Routing Table: 976
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 291181568
Equivalent to 17 /8s, 91 /16s and 20 /24s
Percentage of available ARIN address space announced: 72.3
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: 36462
Total RIPE prefixes after maximum aggregation: 24439
Prefixes being announced from the RIPE address blocks: 33483
Unique aggregates announced from the RIPE address blocks: 22655
RIPE Region origin ASes present in the Internet Routing Table: 7767
RIPE Region origin ASes announcing only one prefix: 4075
RIPE Region transit ASes present in the Internet Routing Table: 1300
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 242020352
Equivalent to 14 /8s, 108 /16s and 240 /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: 10400
Total LACNIC prefixes after maximum aggregation: 3522
Prefixes being announced from the LACNIC address blocks: 8504
Unique aggregates announced from the LACNIC address blocks: 5151
LACNIC Region origin ASes present in the Internet Routing Table: 677
LACNIC Region origin ASes announcing only one prefix: 218
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 25832448
Equivalent to 1 /8s, 138 /16s and 44 /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: 1960
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1314
Unique aggregates announced from the AfriNIC address blocks: 894
AfriNIC Region origin ASes present in the Internet Routing Table: 148
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3796480
Equivalent to 0 /8s, 57 /16s and 238 /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 678 3923 301 Korea Telecom (KIX)
1221 651 1428 469 Telstra Pty Ltd
9498 559 212 72 BHARTI BT INTERNET LTD.
7545 519 108 70 TPG Internet Pty Ltd
17488 515 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 331 81 41 PT TELEKOMUNIKASI INDONESIA
9929 325 216 52 China Netcom Corp.
17557 321 25 163 Pakistan Telecom
17849 316 20 105 Telecommunications Technology
7474 305 211 232 SingTel Optus Pty Ltd
4780 281 226 16 Digital United Inc.
9837 272 78 168 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6263 965 AT&T WorldNet Services
4323 1228 711 235 Time Warner Telecom
721 1011 21962 308 DLA Systems Automation Center
6197 1003 619 468 BellSouth Network Solutions,
174 976 5784 921 Cogent Communications
701 946 8064 782 UUNET Technologies, Inc.
18566 918 272 8 Covad Communications
2386 870 520 662 AT&T Data Communications Serv
1239 850 2789 598 Sprint
19029 778 152 112 New Edge Networks
209 695 3604 539 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 599 208 389 Citizens Utilities
6198 583 502 238 BellSouth Network Solutions,
852 576 1088 382 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 280 3477 232 Deutsche Telekom AG
680 244 2025 241 DFN-IP service G-WiN
3246 230 488 220 Song Networks
6746 225 88 197 Dynamic Network Technologies,
8708 220 276 203 Romania Data Systems S.A.
8551 202 197 24 Bezeq International
1257 198 712 173 SWIPnet Swedish IP Network
24863 193 40 9 LINKdotNET AS number
3269 191 2037 73 TELECOM ITALIA
3215 183 1518 86 France Telecom Transpac
5515 177 839 124 Sonera Solution Autonomous Sy
786 173 1794 173 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 597 1050 226 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 313 111 80 Servicios Alestra S.A de C.V
16814 289 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 132 80 4 Cable-Wireless Panama
5639 127 12 9 Telecommunications Services o
19169 124 8 30 Telconet
6503 123 149 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 277 803 233 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 74 155 67 The Internetworking Company o
24835 62 50 7 RAYA Telecom - Egypt
20928 58 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 AS Number for Telecom Algeria
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
21280 20 4 4 Swift Global Kenya Ltd.Is an
2561 19 6 2 Egyptian Universities Network
15808 18 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1228 993 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 1011 703 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 515 508 Hathway IP Over Cable Interne
19262 663 506 Verizon Global Networks
855 566 502 Canadian Research Network
5668 523 498 CenturyTel Internet Holdings,
9498 559 487 BHARTI BT INTERNET LTD.
7757 472 453 AT&T Broadband
7545 519 449 TPG Internet Pty Ltd
3602 535 426 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64570 PRIVATE 62.56.219.0/24 4558 Exchange Point Block
35650 UNALLOCATED 87.117.64.0/18 16238 AS for Coulomb
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
64518 PRIVATE 196.216.132.0/23 4558 Exchange Point Block
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 /16:8744 /17:3112 /18:5143
/19:11416 /20:12789 /21:10933 /22:14076 /23:15261 /24:100296
/25:356 /26:236 /27:212 /28:66 /29:24 /30:31
/31:0 /32:32
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 792 1499 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 593 1228 Time Warner Telecom
19916 557 563 OLM LLC
7011 513 599 Citizens Utilities
4766 487 678 Korea Telecom (KIX)
7757 454 472 AT&T Broadband
6198 443 583 BellSouth Network Solutions,
855 440 566 Canadian Research Network
5668 403 523 CenturyTel Internet Holdings,
1239 375 850 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 12:1623 13:1 15:12 16:3
17:3 18:4 20:43 24:873 25:1 30:2
32:67 38:204 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:134 59:170 60:180
61:815 62:791 63:1898 64:3120 65:2219 66:3089
67:610 68:677 69:1448 70:311 71:59 72:643
73:23 74:22 80:751 81:593 82:528 83:352
84:341 85:463 86:371 87:239 88:34 89:67
124:185 125:273 128:160 129:174 130:102 131:319
132:31 133:8 134:146 135:47 136:175 137:65
138:192 139:74 140:441 141:137 142:414 143:154
144:230 145:39 146:310 147:134 148:407 149:188
150:114 151:78 152:64 153:102 154:6 155:194
156:94 157:120 158:164 159:166 160:88 161:73
162:229 163:144 164:179 165:171 166:151 167:240
168:475 169:140 170:323 171:12 172:1 190:38
192:5768 193:3413 194:2538 195:1777 196:771 198:3879
199:3262 200:4204 201:646 202:6549 203:6921 204:3920
205:2092 206:2421 207:2917 208:2022 209:3758 210:1960
211:821 212:1263 213:1489 214:332 215:42 216:4104
217:1166 218:240 219:163 220:653 221:348 222:157
End of report
