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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 23 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 179106
Prefixes after maximum aggregation: 100262
Unique aggregates announced to Internet: 87146
Total ASes present in the Internet Routing Table: 21329
Origin-only ASes present in the Internet Routing Table: 18551
Origin ASes announcing only one prefix: 8781
Transit ASes present in the Internet Routing Table: 2778
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1481828384
Equivalent to 88 /8s, 82 /16s and 232 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86600
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37647
Total APNIC prefixes after maximum aggregation: 15883
Prefixes being announced from the APNIC address blocks: 35436
Unique aggregates announced from the APNIC address blocks: 17329
APNIC Region origin ASes present in the Internet Routing Table: 2463
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 379
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 210802656
Equivalent to 12 /8s, 144 /16s and 151 /24s
Percentage of available APNIC address space announced: 65.9
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: 94169
Total ARIN prefixes after maximum aggregation: 56331
Prefixes being announced from the ARIN address blocks: 73466
Unique aggregates announced from the ARIN address blocks: 28116
ARIN Region origin ASes present in the Internet Routing Table: 10455
ARIN Region origin ASes announcing only one prefix: 3888
ARIN Region transit ASes present in the Internet Routing Table: 965
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282810880
Equivalent to 16 /8s, 219 /16s and 90 /24s
Percentage of available ARIN address space announced: 70.2
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: 35176
Total RIPE prefixes after maximum aggregation: 23723
Prefixes being announced from the RIPE address blocks: 32189
Unique aggregates announced from the RIPE address blocks: 21589
RIPE Region origin ASes present in the Internet Routing Table: 7533
RIPE Region origin ASes announcing only one prefix: 3942
RIPE Region transit ASes present in the Internet Routing Table: 1247
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229857664
Equivalent to 13 /8s, 179 /16s and 89 /24s
Percentage of available RIPE address space announced: 68.5
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: 10272
Total LACNIC prefixes after maximum aggregation: 3453
Prefixes being announced from the LACNIC address blocks: 8439
Unique aggregates announced from the LACNIC address blocks: 5043
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 214
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24757248
Equivalent to 1 /8s, 121 /16s and 196 /24s
Percentage of available LACNIC address space announced: 36.9
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: 1835
Total AfriNIC prefixes after maximum aggregation: 872
Prefixes being announced from the AfriNIC address blocks: 1217
Unique aggregates announced from the AfriNIC address blocks: 854
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 3028736
Equivalent to 0 /8s, 46 /16s and 55 /24s
Percentage of available AfriNIC address space announced: 9.0
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 978 6450 206 CHINANET-BACKBONE
9583 838 109 15 Sify Limited
4755 786 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 719 3929 303 Korea Telecom (KIX)
1221 667 1364 474 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 508 211 69 BHARTI BT INTERNET LTD.
17676 477 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 408 93 85 Primus Telecommunications
4802 363 75 158 Wantree Development
2907 338 1763 315 SINET Japan
9929 334 217 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 330 68 23 Reliance Infocom Ltd Internet
17974 317 77 36 PT TELEKOMUNIKASI INDONESIA
17557 312 25 162 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1468 6265 955 AT&T WorldNet Services
4323 1201 723 234 Time Warner Telecom
174 1037 5807 949 Cogent Communications
721 1029 21938 306 DLA Systems Automation Center
6197 973 436 507 BellSouth Network Solutions,
701 966 8099 808 UUNET Technologies, Inc.
18566 892 272 8 Covad Communications
2386 879 501 687 AT&T Data Communications Serv
1239 850 2791 604 Sprint
209 659 3603 525 Qwest
20115 659 538 341 Charter Communications
11492 644 89 12 Cable One
22773 610 1478 33 Cox Communications, Inc.
19262 595 1705 140 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 558 242 59 Canadian Research Network
6478 530 1471 293 AT&T Worldnet Services
3602 521 127 106 Sprint Canada, Inc.
5668 518 143 24 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 587 1954 465 UUNET - Commercial IP service
3301 302 1071 288 TeliaNet Sweden
3352 302 1500 34 Ibernet, Internet Access Netw
3320 283 3485 237 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 228 487 218 Song Networks
8708 219 274 204 Romania Data Systems S.A.
6746 214 53 186 Dynamic Network Technologies,
1257 189 712 169 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 171 37 13 Bulgarian Telecommunication C
24863 167 38 9 LINKdotNET AS number
3215 166 1350 81 France Telecom Transpac
5400 166 328 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 91 AUCS Communications Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 560 1048 217 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 301 110 78 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 191 52 13 Mega Cable S.A. de C.V.
14117 181 11 6 Telefonica del Sur S.A.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 122 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 117 148 78 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
11311 100 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
14522 95 12 8 SatNet S.A.
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 819 233 The Internet Solution
8452 152 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 76 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
24835 72 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 36 9 27 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
21280 20 4 4 Swift Global Kenya Ltd.Is an
12455 19 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1201 967 Time Warner Telecom
18566 892 884 Covad Communications
9583 838 823 Sify Limited
4134 978 772 CHINANET-BACKBONE
721 1029 723 DLA Systems Automation Center
4755 786 723 Videsh Sanchar Nigam Ltd. Aut
11492 644 632 Cable One
22773 610 577 Cox Communications, Inc.
19916 563 509 OLM LLC
855 558 499 Canadian Research Network
5668 518 494 CenturyTel Internet Holdings,
6197 973 466 BellSouth Network Solutions,
19262 595 455 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
9498 508 439 BHARTI BT INTERNET LTD.
17488 436 427 Hathway IP Over Cable Interne
4766 719 416 Korea Telecom (KIX)
3602 521 415 Sprint Canada, Inc.
812 438 410 Rogers WAVE
17676 477 375 Softbank BB Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 6828 Ekaterinburg Telegra
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
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 7575 Australian Academic and Rease
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 /9:5 /10:8 /11:20 /12:87
/13:196 /14:349 /15:680 /16:8655 /17:2968 /18:4979
/19:11215 /20:12386 /21:10702 /22:13702 /23:14915 /24:97272
/25:310 /26:252 /27:202 /28:62 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 875 892 Covad Communications
6197 785 973 BellSouth Network Solutions,
7018 748 1468 AT&T WorldNet Services
9583 660 838 Sify Limited
11492 635 644 Cable One
2386 613 879 AT&T Data Communications Serv
4323 576 1201 Time Warner Telecom
19916 557 563 OLM LLC
4766 519 719 Korea Telecom (KIX)
855 444 558 Canadian Research Network
5668 407 518 CenturyTel Internet Holdings,
7011 402 468 Citizens Utilities
702 372 587 UUNET - Commercial IP service
1239 366 850 Sprint
6198 357 500 BellSouth Network Solutions,
6517 342 370 Yipes Communications, Inc.
15270 334 361 PaeTec.net -a division of Pae
812 317 438 Rogers WAVE
22773 315 610 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1635 13:1 15:11 16:3
17:3 18:4 20:42 24:765 25:1 30:2
32:66 38:190 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:158 60:184
61:816 62:736 63:1888 64:2952 65:2152 66:3029
67:587 68:693 69:1395 70:276 71:51 72:580
73:22 80:733 81:596 82:503 83:357 84:338
85:413 86:266 87:146 88:18 89:7 124:5
125:183 128:156 129:174 130:102 131:310 132:34
133:7 134:151 135:46 136:169 137:62 138:181
139:88 140:445 141:135 142:413 143:143 144:225
145:39 146:313 147:134 148:325 149:186 150:112
151:72 152:59 153:99 154:6 155:185 156:91
157:117 158:153 159:178 160:88 161:68 162:253
163:175 164:166 165:176 166:147 167:236 168:477
169:139 170:315 171:12 190:30 192:5750 193:3354
194:2452 195:1720 196:736 198:3874 199:3270 200:4204
201:559 202:6483 203:6737 204:3809 205:2076 206:2437
207:2913 208:2017 209:3470 210:1847 211:781 212:1260
213:1440 214:320 215:40 216:3823 217:1147 218:232
219:134 220:644 221:334 222:146
End of report
