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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 31 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185282
Prefixes after maximum aggregation: 102651
Unique aggregates announced to Internet: 90433
Total ASes present in the Internet Routing Table: 21857
Origin-only ASes present in the Internet Routing Table: 19000
Origin ASes announcing only one prefix: 9052
Transit ASes present in the Internet Routing Table: 2857
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
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: 12
Number of addresses announced to Internet: 1499896352
Equivalent to 89 /8s, 102 /16s and 154 /24s
Percentage of available address space announced: 40.5
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 90903
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38920
Total APNIC prefixes after maximum aggregation: 16330
Prefixes being announced from the APNIC address blocks: 36621
Unique aggregates announced from the APNIC address blocks: 17993
APNIC Region origin ASes present in the Internet Routing Table: 2530
APNIC Region origin ASes announcing only one prefix: 719
APNIC Region transit ASes present in the Internet Routing Table: 387
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 219863520
Equivalent to 13 /8s, 26 /16s and 217 /24s
Percentage of available APNIC address space announced: 68.7
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: 96995
Total ARIN prefixes after maximum aggregation: 57250
Prefixes being announced from the ARIN address blocks: 76080
Unique aggregates announced from the ARIN address blocks: 29003
ARIN Region origin ASes present in the Internet Routing Table: 10610
ARIN Region origin ASes announcing only one prefix: 3971
ARIN Region transit ASes present in the Internet Routing Table: 980
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293466112
Equivalent to 17 /8s, 125 /16s and 240 /24s
Percentage of available ARIN address space announced: 72.9
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: 36735
Total RIPE prefixes after maximum aggregation: 24609
Prefixes being announced from the RIPE address blocks: 33784
Unique aggregates announced from the RIPE address blocks: 22823
RIPE Region origin ASes present in the Internet Routing Table: 7816
RIPE Region origin ASes announcing only one prefix: 4093
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: 242946176
Equivalent to 14 /8s, 123 /16s and 16 /24s
Percentage of available RIPE address space announced: 72.4
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: 10551
Total LACNIC prefixes after maximum aggregation: 3575
Prefixes being announced from the LACNIC address blocks: 8726
Unique aggregates announced from the LACNIC address blocks: 5280
LACNIC Region origin ASes present in the Internet Routing Table: 682
LACNIC Region origin ASes announcing only one prefix: 223
LACNIC Region transit ASes present in the Internet Routing Table: 127
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 26120704
Equivalent to 1 /8s, 142 /16s and 146 /24s
Percentage of available LACNIC address space announced: 38.9
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: 2073
Total AfriNIC prefixes after maximum aggregation: 887
Prefixes being announced from the AfriNIC address blocks: 1401
Unique aggregates announced from the AfriNIC address blocks: 912
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 46
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: 14
Number of AfriNIC addresses announced to Internet: 3947264
Equivalent to 0 /8s, 60 /16s and 59 /24s
Percentage of available AfriNIC address space announced: 11.8
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 997 6935 213 CHINANET-BACKBONE
4755 891 259 70 Videsh Sanchar Nigam Ltd. Aut
9583 876 109 16 Sify Limited
4766 676 3923 301 Korea Telecom (KIX)
1221 620 1556 474 Telstra Pty Ltd
9498 560 211 71 BHARTI BT INTERNET LTD.
7545 529 108 70 TPG Internet Pty Ltd
17488 502 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 414 95 82 Primus Telecommunications
4802 376 91 171 Wantree Development
17974 337 90 38 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
18101 324 68 23 Reliance Infocom Ltd Internet
17557 321 27 165 Pakistan Telecom
17849 318 20 104 Telecommunications Technology
9929 315 218 53 China Netcom Corp.
7474 307 211 233 SingTel Optus Pty Ltd
4780 281 226 16 Digital United Inc.
9837 269 77 165 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1510 6264 967 AT&T WorldNet Services
4323 1245 714 248 Time Warner Telecom
721 1008 21962 306 DLA Systems Automation Center
6197 1006 620 469 BellSouth Network Solutions,
174 959 5784 906 Cogent Communications
701 949 8050 785 UUNET Technologies, Inc.
18566 924 272 8 Covad Communications
2386 872 521 665 AT&T Data Communications Serv
1239 853 2805 603 Sprint
19029 784 152 112 New Edge Networks
209 701 3607 544 Qwest
20115 674 591 362 Charter Communications
19262 665 1968 156 Verizon Global Networks
22773 642 1480 40 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 617 212 399 Citizens Utilities
6198 582 506 238 BellSouth Network Solutions,
852 578 1088 385 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 546 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 586 1951 459 UUNET - Commercial IP service
3301 309 1071 293 TeliaNet Sweden
3352 306 1564 31 Ibernet, Internet Access Netw
8220 289 473 268 COLT Telecommunications
3320 282 3478 234 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 230 89 204 Dynamic Network Technologies,
8708 215 275 200 Romania Data Systems S.A.
8551 203 198 24 Bezeq International
24863 201 40 9 LINKdotNET AS number
1257 198 711 173 SWIPnet Swedish IP Network
3269 197 2086 76 TELECOM ITALIA
3215 189 1574 89 France Telecom Transpac
9121 174 931 26 TTnet Autonomous System
786 171 1778 171 The JANET IP Service
8866 170 37 14 Bulgarian Telecommunication C
5400 168 329 137 BT Ignite European Backbone
6830 167 765 35 UPC Distribution Services
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 1051 226 UniNet S.A. de C.V.
22047 386 142 10 VTR PUNTO NET S.A.
11172 319 110 82 Servicios Alestra S.A de C.V
16814 280 18 7 NSS, S.A.
14117 185 12 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
6505 123 91 83 Global One Communicaoes Ltda
19169 123 8 32 Telconet
21826 123 16 20 INTERCABLE
6503 122 149 75 AVANTEL, S.A.
10481 121 48 8 Prima S.A.
23216 100 20 7 RAMtelecom Telecomunicaciones
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.
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 803 232 The Internet Solution
8452 166 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
15475 131 84 4 Nile Online
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 83 50 7 RAYA Telecom - Egypt
2905 74 155 67 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
12455 40 6 3 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
21280 23 5 5 Swift Global Kenya Ltd.Is an
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1245 997 Time Warner Telecom
18566 924 916 Covad Communications
9583 876 860 Sify Limited
4755 891 821 Videsh Sanchar Nigam Ltd. Aut
4134 997 784 CHINANET-BACKBONE
721 1008 702 DLA Systems Automation Center
19029 784 672 New Edge Networks
11492 627 607 Cable One
22773 642 602 Cox Communications, Inc.
6197 1006 537 BellSouth Network Solutions,
19262 665 509 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 502 CenturyTel Internet Holdings,
17488 502 495 Hathway IP Over Cable Interne
9498 560 489 BHARTI BT INTERNET LTD.
855 546 482 Canadian Research Network
7545 529 459 TPG Internet Pty Ltd
7757 473 454 AT&T Broadband
3602 540 431 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
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65412 PRIVATE 221.123.128.0/20 24405 Beijing CJWX Communi
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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 /8:17 /9:9 /10:8 /11:27 /12:88
/13:199 /14:357 /15:691 /16:8771 /17:3168 /18:5163
/19:11449 /20:12901 /21:11190 /22:14255 /23:15374 /24:100628
/25:341 /26:247 /27:213 /28:59 /29:62 /30:33
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 907 924 Covad Communications
7018 802 1510 AT&T WorldNet Services
6197 795 1006 BellSouth Network Solutions,
19029 711 784 New Edge Networks
9583 694 876 Sify Limited
11492 618 627 Cable One
4323 602 1245 Time Warner Telecom
2386 596 872 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 529 617 Citizens Utilities
4766 485 676 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 440 582 BellSouth Network Solutions,
855 420 546 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 378 853 Sprint
702 367 586 UUNET - Commercial IP service
15270 363 393 PaeTec.net -a division of Pae
6517 348 378 Yipes Communications, Inc.
22773 336 642 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 24:880 25:1 30:2
32:67 38:206 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:153 59:190 60:166
61:833 62:808 63:1919 64:3114 65:2230 66:3094
67:616 68:700 69:1429 70:314 71:76 72:655
73:23 74:26 80:757 81:612 82:547 83:360
84:374 85:505 86:336 87:272 88:50 89:107
124:196 125:279 128:160 129:177 130:108 131:320
132:33 133:8 134:150 135:47 136:177 137:69
138:196 139:75 140:467 141:134 142:393 143:157
144:224 145:40 146:323 147:133 148:338 149:190
150:114 151:80 152:65 153:107 154:6 155:195
156:99 157:119 158:166 159:168 160:86 161:69
162:253 163:145 164:179 165:179 166:166 167:243
168:480 169:134 170:325 171:12 172:1 183:1
190:47 192:5768 193:3402 194:2554 195:1790 196:803
198:3877 199:3262 200:4305 201:667 202:6558 203:6870
204:3926 205:2085 206:2421 207:2925 208:2042 209:3725
210:1921 211:737 212:1247 213:1435 214:339 215:42
216:4079 217:1175 218:239 219:180 220:654 221:352
222:159
End of report
