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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 25 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 179268
Prefixes after maximum aggregation: 100443
Unique aggregates announced to Internet: 87287
Total ASes present in the Internet Routing Table: 21369
Origin-only ASes present in the Internet Routing Table: 18588
Origin ASes announcing only one prefix: 8804
Transit ASes present in the Internet Routing Table: 2781
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1482719520
Equivalent to 88 /8s, 96 /16s and 129 /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: 86715
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37677
Total APNIC prefixes after maximum aggregation: 15901
Prefixes being announced from the APNIC address blocks: 35461
Unique aggregates announced from the APNIC address blocks: 17322
APNIC Region origin ASes present in the Internet Routing Table: 2462
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 382
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211084768
Equivalent to 12 /8s, 148 /16s and 229 /24s
Percentage of available APNIC address space announced: 66.0
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: 94191
Total ARIN prefixes after maximum aggregation: 56387
Prefixes being announced from the ARIN address blocks: 73456
Unique aggregates announced from the ARIN address blocks: 28150
ARIN Region origin ASes present in the Internet Routing Table: 10467
ARIN Region origin ASes announcing only one prefix: 3899
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282967040
Equivalent to 16 /8s, 221 /16s and 188 /24s
Percentage of available ARIN address space announced: 70.3
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: 35272
Total RIPE prefixes after maximum aggregation: 23813
Prefixes being announced from the RIPE address blocks: 32286
Unique aggregates announced from the RIPE address blocks: 21671
RIPE Region origin ASes present in the Internet Routing Table: 7555
RIPE Region origin ASes announcing only one prefix: 3952
RIPE Region transit ASes present in the Internet Routing Table: 1243
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 230286720
Equivalent to 13 /8s, 185 /16s and 229 /24s
Percentage of available RIPE address space announced: 68.6
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: 10282
Total LACNIC prefixes after maximum aggregation: 3468
Prefixes being announced from the LACNIC address blocks: 8456
Unique aggregates announced from the LACNIC address blocks: 5049
LACNIC Region origin ASes present in the Internet Routing Table: 664
LACNIC Region origin ASes announcing only one prefix: 214
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24783104
Equivalent to 1 /8s, 122 /16s and 41 /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: 1839
Total AfriNIC prefixes after maximum aggregation: 874
Prefixes being announced from the AfriNIC address blocks: 1220
Unique aggregates announced from the AfriNIC address blocks: 860
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 3041792
Equivalent to 0 /8s, 46 /16s and 106 /24s
Percentage of available AfriNIC address space announced: 9.1
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 982 6462 204 CHINANET-BACKBONE
9583 844 109 15 Sify Limited
4755 787 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 719 3930 304 Korea Telecom (KIX)
1221 667 1364 474 Telstra Pty Ltd
7545 515 108 69 TPG Internet Pty Ltd
9498 514 211 69 BHARTI BT INTERNET LTD.
17676 478 6917 103 Softbank BB Corp.
17488 435 26 9 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 366 75 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 336 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 330 68 23 Reliance Infocom Ltd Internet
17974 317 77 37 PT TELEKOMUNIKASI INDONESIA
17557 312 25 162 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 258 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6265 959 AT&T WorldNet Services
4323 1206 724 236 Time Warner Telecom
174 1035 5791 946 Cogent Communications
721 1030 21938 308 DLA Systems Automation Center
6197 976 437 508 BellSouth Network Solutions,
701 965 8099 807 UUNET Technologies, Inc.
18566 892 272 8 Covad Communications
2386 880 501 688 AT&T Data Communications Serv
1239 844 2792 601 Sprint
20115 668 545 348 Charter Communications
209 659 3603 525 Qwest
11492 644 89 12 Cable One
22773 607 1478 33 Cox Communications, Inc.
19262 596 1713 141 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 558 242 59 Canadian Research Network
6478 535 1481 297 AT&T Worldnet Services
3602 522 127 106 Sprint Canada, Inc.
5668 519 143 24 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 584 1954 462 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
680 249 2025 239 DFN-IP service G-WiN
3246 228 487 218 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 216 85 187 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 184 1925 69 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
8866 171 37 13 Bulgarian Telecommunication C
3215 167 1366 81 France Telecom Transpac
24863 167 38 9 LINKdotNET AS number
5400 166 328 136 BT Ignite European Backbone
3300 162 170 92 AUCS Communications Services
6830 159 669 33 UPC Distribution Services
12479 156 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 561 1048 215 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 297 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
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
11311 96 8 21 Sinectis S.A.
4270 94 17 9 Red de Interconexion Universi
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 819 233 The Internet Solution
8452 151 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 73 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
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 22 4 4 Swift Global Kenya Ltd.Is an
12455 18 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 1206 970 Time Warner Telecom
18566 892 884 Covad Communications
9583 844 829 Sify Limited
4134 982 778 CHINANET-BACKBONE
4755 787 724 Videsh Sanchar Nigam Ltd. Aut
721 1030 722 DLA Systems Automation Center
11492 644 632 Cable One
22773 607 574 Cox Communications, Inc.
19916 563 509 OLM LLC
855 558 499 Canadian Research Network
5668 519 495 CenturyTel Internet Holdings,
6197 976 468 BellSouth Network Solutions,
19262 596 455 Verizon Global Networks
7545 515 446 TPG Internet Pty Ltd
9498 514 445 BHARTI BT INTERNET LTD.
17488 435 426 Hathway IP Over Cable Interne
3602 522 416 Sprint Canada, Inc.
4766 719 415 Korea Telecom (KIX)
812 438 410 Rogers WAVE
17676 478 375 Softbank BB Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /15:682 /16:8654 /17:2976 /18:4979
/19:11222 /20:12392 /21:10731 /22:13728 /23:14924 /24:97296
/25:312 /26:264 /27:240 /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 784 976 BellSouth Network Solutions,
7018 744 1471 AT&T WorldNet Services
9583 663 844 Sify Limited
11492 635 644 Cable One
2386 614 880 AT&T Data Communications Serv
4323 581 1206 Time Warner Telecom
19916 557 563 OLM LLC
4766 519 719 Korea Telecom (KIX)
855 444 558 Canadian Research Network
5668 407 519 CenturyTel Internet Holdings,
7011 403 469 Citizens Utilities
702 371 584 UUNET - Commercial IP service
1239 366 844 Sprint
6198 356 499 BellSouth Network Solutions,
6517 343 371 Yipes Communications, Inc.
15270 337 364 PaeTec.net -a division of Pae
812 317 438 Rogers WAVE
22773 314 607 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1637 13:1 15:11 16:3
17:3 18:4 20:42 24:766 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 60:183
61:815 62:746 63:1889 64:2955 65:2150 66:3001
67:588 68:648 69:1390 70:276 71:51 72:578
73:22 80:734 81:596 82:507 83:356 84:339
85:409 86:273 87:150 88:20 89:9 124:6
125:187 128:159 129:174 130:102 131:311 132:34
133:7 134:152 135:46 136:169 137:61 138:181
139:88 140:443 141:135 142:413 143:140 144:225
145:39 146:313 147:134 148:323 149:185 150:114
151:72 152:61 153:102 154:6 155:185 156:91
157:120 158:153 159:178 160:88 161:67 162:259
163:176 164:166 165:178 166:147 167:235 168:477
169:139 170:316 171:12 190:30 192:5758 193:3361
194:2466 195:1727 196:736 198:3889 199:3268 200:4207
201:560 202:6439 203:6741 204:3842 205:2066 206:2440
207:2917 208:2016 209:3474 210:1843 211:784 212:1277
213:1436 214:318 215:40 216:3795 217:1174 218:234
219:132 220:642 221:336 222:146
End of report
