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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 16 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 184163
Prefixes after maximum aggregation: 102191
Unique aggregates announced to Internet: 88815
Total ASes present in the Internet Routing Table: 21751
Origin-only ASes present in the Internet Routing Table: 18899
Origin ASes announcing only one prefix: 8987
Transit ASes present in the Internet Routing Table: 2852
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1512173728
Equivalent to 90 /8s, 33 /16s and 240 /24s
Percentage of available address space announced: 40.8
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 90086
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38840
Total APNIC prefixes after maximum aggregation: 16335
Prefixes being announced from the APNIC address blocks: 36570
Unique aggregates announced from the APNIC address blocks: 17777
APNIC Region origin ASes present in the Internet Routing Table: 2502
APNIC Region origin ASes announcing only one prefix: 702
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 217420000
Equivalent to 12 /8s, 245 /16s and 144 /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: 96495
Total ARIN prefixes after maximum aggregation: 56987
Prefixes being announced from the ARIN address blocks: 75712
Unique aggregates announced from the ARIN address blocks: 28842
ARIN Region origin ASes present in the Internet Routing Table: 10587
ARIN Region origin ASes announcing only one prefix: 3952
ARIN Region transit ASes present in the Internet Routing Table: 978
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 291218688
Equivalent to 17 /8s, 91 /16s and 165 /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: 36493
Total RIPE prefixes after maximum aggregation: 24457
Prefixes being announced from the RIPE address blocks: 33513
Unique aggregates announced from the RIPE address blocks: 21782
RIPE Region origin ASes present in the Internet Routing Table: 7768
RIPE Region origin ASes announcing only one prefix: 4072
RIPE Region transit ASes present in the Internet Routing Table: 1298
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 243576576
Equivalent to 14 /8s, 132 /16s and 175 /24s
Percentage of available RIPE address space announced: 72.6
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: 10374
Total LACNIC prefixes after maximum aggregation: 3529
Prefixes being announced from the LACNIC address blocks: 8538
Unique aggregates announced from the LACNIC address blocks: 5159
LACNIC Region origin ASes present in the Internet Routing Table: 678
LACNIC Region origin ASes announcing only one prefix: 219
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: 25836288
Equivalent to 1 /8s, 138 /16s and 59 /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: 1952
Total AfriNIC prefixes after maximum aggregation: 883
Prefixes being announced from the AfriNIC address blocks: 1323
Unique aggregates announced from the AfriNIC address blocks: 903
AfriNIC Region origin ASes present in the Internet Routing Table: 147
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 3792640
Equivalent to 0 /8s, 57 /16s and 223 /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 652 1428 470 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 370 75 165 Wantree Development
2907 335 1749 313 SINET Japan
17974 333 89 32 PT TELEKOMUNIKASI INDONESIA
18101 333 68 23 Reliance Infocom Ltd Internet
9929 331 216 52 China Netcom Corp.
17557 319 25 162 Pakistan Telecom
17849 315 20 104 Telecommunications Technology
7474 305 211 232 SingTel Optus Pty Ltd
4780 279 226 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 1494 6263 965 AT&T WorldNet Services
4323 1228 712 236 Time Warner Telecom
721 1010 21962 308 DLA Systems Automation Center
6197 1004 619 468 BellSouth Network Solutions,
174 976 5784 921 Cogent Communications
701 946 8064 782 UUNET Technologies, Inc.
18566 919 272 8 Covad Communications
2386 870 520 662 AT&T Data Communications Serv
1239 853 2789 601 Sprint
19029 778 152 112 New Edge Networks
209 697 3608 541 Qwest
20115 671 586 361 Charter Communications
19262 663 1939 152 Verizon Global Networks
22773 640 1480 40 Cox Communications, Inc.
11492 636 86 20 Cable One
7011 601 209 391 Citizens Utilities
6198 580 502 238 BellSouth Network Solutions,
852 577 1088 383 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 545 244 64 Canadian Research Network
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 289 473 268 COLT Telecommunications
3320 280 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 219 276 203 Romania Data Systems S.A.
8551 202 197 24 Bezeq International
1257 197 710 172 SWIPnet Swedish IP Network
24863 194 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 596 1050 225 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 159 75 20 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
2561 19 6 2 Egyptian Universities Network
21280 19 4 4 Swift Global Kenya Ltd.Is an
15804 18 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1228 992 Time Warner Telecom
18566 919 911 Covad Communications
9583 867 851 Sify Limited
4755 874 803 Videsh Sanchar Nigam Ltd. Aut
4134 988 780 CHINANET-BACKBONE
721 1010 702 DLA Systems Automation Center
19029 778 666 New Edge Networks
11492 636 616 Cable One
22773 640 600 Cox Communications, Inc.
6197 1004 536 BellSouth Network Solutions,
19262 663 511 Verizon Global Networks
19916 563 509 OLM LLC
17488 515 508 Hathway IP Over Cable Interne
5668 522 497 CenturyTel Internet Holdings,
9498 559 487 BHARTI BT INTERNET LTD.
855 545 481 Canadian Research Network
7757 473 454 AT&T Broadband
7545 519 449 TPG Internet Pty Ltd
3602 536 427 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 SHANGHAI NETWORK ACC
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 /8:19 /9:9 /10:8 /11:25 /12:87
/13:198 /14:353 /15:695 /16:8746 /17:3110 /18:5149
/19:11421 /20:12791 /21:10942 /22:14096 /23:15274 /24:100271
/25:358 /26:241 /27:213 /28:67 /29:25 /30:33
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 902 919 Covad Communications
6197 794 1004 BellSouth Network Solutions,
7018 790 1494 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 515 601 Citizens Utilities
4766 487 678 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 440 580 BellSouth Network Solutions,
855 419 545 Canadian Research Network
5668 403 522 CenturyTel Internet Holdings,
1239 377 853 Sprint
702 365 581 UUNET - Commercial IP service
15270 353 383 PaeTec.net -a division of Pae
6517 346 375 Yipes Communications, Inc.
22773 335 640 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1621 13:1 15:12 16:3
17:3 18:4 20:43 24:873 25:1 30:2
32:67 38:205 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:135 59:170 60:178
61:815 62:790 63:1902 64:3120 65:2224 66:3087
67:610 68:678 69:1440 70:310 71:59 72:644
73:23 74:22 80:752 81:592 82:529 83:356
84:340 85:462 86:374 87:242 88:41 89:70
124:185 125:272 128:160 129:174 130:102 131:319
132:33 133:8 134:147 135:47 136:175 137:65
138:190 139:73 140:484 141:137 142:393 143:156
144:230 145:39 146:310 147:134 148:336 149:187
150:111 151:78 152:64 153:105 154:6 155:194
156:94 157:119 158:164 159:166 160:88 161:73
162:228 163:144 164:179 165:175 166:152 167:240
168:476 169:140 170:319 171:12 172:1 190:39
192:5768 193:3413 194:2545 195:1754 196:788 198:3880
199:3257 200:4222 201:647 202:6539 203:6913 204:3921
205:2093 206:2421 207:2924 208:2027 209:3754 210:1949
211:821 212:1269 213:1484 214:341 215:42 216:4103
217:1166 218:240 219:163 220:653 221:348 222:158
End of report
