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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 17 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 184215
Prefixes after maximum aggregation: 102276
Unique aggregates announced to Internet: 89819
Total ASes present in the Internet Routing Table: 21759
Origin-only ASes present in the Internet Routing Table: 18906
Origin ASes announcing only one prefix: 8983
Transit ASes present in the Internet Routing Table: 2853
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1510822816
Equivalent to 90 /8s, 13 /16s and 83 /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: 90104
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38822
Total APNIC prefixes after maximum aggregation: 16354
Prefixes being announced from the APNIC address blocks: 36560
Unique aggregates announced from the APNIC address blocks: 17796
APNIC Region origin ASes present in the Internet Routing Table: 2503
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: 217572320
Equivalent to 12 /8s, 247 /16s and 227 /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: 96484
Total ARIN prefixes after maximum aggregation: 57031
Prefixes being announced from the ARIN address blocks: 75669
Unique aggregates announced from the ARIN address blocks: 28895
ARIN Region origin ASes present in the Internet Routing Table: 10588
ARIN Region origin ASes announcing only one prefix: 3950
ARIN Region transit ASes present in the Internet Routing Table: 973
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 291263488
Equivalent to 17 /8s, 92 /16s and 84 /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: 36535
Total RIPE prefixes after maximum aggregation: 24466
Prefixes being announced from the RIPE address blocks: 33555
Unique aggregates announced from the RIPE address blocks: 22702
RIPE Region origin ASes present in the Internet Routing Table: 7774
RIPE Region origin ASes announcing only one prefix: 4070
RIPE Region transit ASes present in the Internet Routing Table: 1302
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 242110464
Equivalent to 14 /8s, 110 /16s and 80 /24s
Percentage of available RIPE address space announced: 72.2
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: 10371
Total LACNIC prefixes after maximum aggregation: 3533
Prefixes being announced from the LACNIC address blocks: 8536
Unique aggregates announced from the LACNIC address blocks: 5160
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: 25873664
Equivalent to 1 /8s, 138 /16s and 205 /24s
Percentage of available LACNIC address space announced: 38.6
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: 1995
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1380
Unique aggregates announced from the AfriNIC address blocks: 911
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: 23
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3929088
Equivalent to 0 /8s, 59 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 11.7
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 990 6937 210 CHINANET-BACKBONE
4755 874 258 71 Videsh Sanchar Nigam Ltd. Aut
9583 867 109 16 Sify Limited
4766 677 3923 302 Korea Telecom (KIX)
1221 653 1428 471 Telstra Pty Ltd
9498 559 212 72 BHARTI BT INTERNET LTD.
7545 519 108 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 370 75 165 Wantree Development
18101 340 68 23 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
9929 333 218 53 China Netcom Corp.
17974 332 89 32 PT TELEKOMUNIKASI INDONESIA
17557 319 25 162 Pakistan Telecom
17849 314 20 103 Telecommunications Technology
7474 304 211 232 SingTel Optus Pty Ltd
9837 272 78 168 Powertel Ltd
9800 267 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6248 963 AT&T WorldNet Services
4323 1230 713 237 Time Warner Telecom
721 1010 21946 307 DLA Systems Automation Center
6197 1004 619 468 BellSouth Network Solutions,
174 972 5783 918 Cogent Communications
701 944 8064 782 UUNET Technologies, Inc.
18566 920 272 8 Covad Communications
2386 870 520 662 AT&T Data Communications Serv
1239 855 2789 603 Sprint
19029 771 151 106 New Edge Networks
209 697 3608 541 Qwest
20115 670 586 360 Charter Communications
19262 664 1955 153 Verizon Global Networks
22773 641 1480 40 Cox Communications, Inc.
11492 624 86 20 Cable One
7011 602 209 391 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
702 583 1951 458 UUNET - Commercial IP service
3352 307 1564 31 Ibernet, Internet Access Netw
3301 306 1071 291 TeliaNet Sweden
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 88 198 Dynamic Network Technologies,
8708 219 276 203 Romania Data Systems S.A.
8551 203 197 24 Bezeq International
1257 197 710 172 SWIPnet Swedish IP Network
24863 197 40 9 LINKdotNET AS number
3269 191 2037 73 TELECOM ITALIA
3215 183 1518 86 France Telecom Transpac
786 173 1794 173 The JANET IP Service
8866 169 37 13 Bulgarian Telecommunication C
5400 167 328 136 BT Ignite European Backbone
6830 166 765 35 UPC Distribution Services
9121 162 931 27 TTnet Autonomous System
5515 161 839 120 Sonera Solution Autonomous Sy
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 372 142 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
6503 125 149 78 AVANTEL, S.A.
19169 123 8 33 Telconet
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 162 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 124 314 105 Tertiary Education Network
5536 122 8 18 Internet Egypt Network
15475 116 84 4 Nile Online
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
30988 18 1 2 Accelon Nigeria Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1230 993 Time Warner Telecom
18566 920 912 Covad Communications
9583 867 851 Sify Limited
4755 874 803 Videsh Sanchar Nigam Ltd. Aut
4134 990 780 CHINANET-BACKBONE
721 1010 703 DLA Systems Automation Center
19029 771 665 New Edge Networks
11492 624 604 Cable One
22773 641 601 Cox Communications, Inc.
6197 1004 536 BellSouth Network Solutions,
19262 664 511 Verizon Global Networks
19916 563 509 OLM LLC
17488 516 509 Hathway IP Over Cable Interne
9498 559 487 BHARTI BT INTERNET LTD.
855 545 481 Canadian Research Network
5668 509 472 CenturyTel Internet Holdings,
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
24294 UNALLOCATED 202.173.112.0/20 2514 NTT PC Communication
65505 PRIVATE 206.252.200.192/27 8002 Stealth Communicatio
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 /16:8747 /17:3116 /18:5146
/19:11417 /20:12826 /21:10949 /22:14129 /23:15293 /24:100231
/25:359 /26:241 /27:212 /28:66 /29:25 /30:33
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 903 920 Covad Communications
6197 794 1004 BellSouth Network Solutions,
7018 792 1497 AT&T WorldNet Services
19029 704 771 New Edge Networks
9583 686 867 Sify Limited
11492 615 624 Cable One
2386 594 870 AT&T Data Communications Serv
4323 593 1230 Time Warner Telecom
19916 557 563 OLM LLC
7011 516 602 Citizens Utilities
4766 486 677 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 440 580 BellSouth Network Solutions,
855 419 545 Canadian Research Network
5668 392 509 CenturyTel Internet Holdings,
1239 380 855 Sprint
702 367 583 UUNET - Commercial IP service
15270 353 383 PaeTec.net -a division of Pae
6517 346 375 Yipes Communications, Inc.
22773 336 641 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1620 13:1 15:12 16:3
17:3 18:4 20:43 24:866 25:1 30:2
32:67 38:205 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:134 59:170 60:179
61:818 62:791 63:1908 64:3110 65:2221 66:3078
67:611 68:678 69:1415 70:311 71:59 72:641
73:23 74:22 80:751 81:598 82:535 83:360
84:340 85:469 86:374 87:256 88:43 89:71
124:185 125:252 128:162 129:174 130:102 131:319
132:33 133:8 134:147 135:47 136:175 137:65
138:191 139:57 140:486 141:137 142:393 143:156
144:230 145:40 146:310 147:134 148:338 149:187
150:114 151:78 152:64 153:106 154:6 155:194
156:94 157:120 158:164 159:167 160:88 161:73
162:228 163:143 164:179 165:175 166:152 167:240
168:478 169:140 170:320 171:12 172:1 190:39
192:5771 193:3399 194:2545 195:1779 196:797 198:3880
199:3259 200:4230 201:648 202:6540 203:6891 204:3933
205:2089 206:2417 207:2930 208:2020 209:3741 210:1935
211:817 212:1273 213:1479 214:342 215:42 216:4089
217:1157 218:240 219:179 220:659 221:351 222:158
End of report
