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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 184883
Prefixes after maximum aggregation: 102603
Unique aggregates announced to Internet: 90321
Total ASes present in the Internet Routing Table: 21843
Origin-only ASes present in the Internet Routing Table: 18984
Origin ASes announcing only one prefix: 9040
Transit ASes present in the Internet Routing Table: 2859
Transit-only ASes present in the Internet Routing Table: 74
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1499006752
Equivalent to 89 /8s, 89 /16s and 7 /24s
Percentage of available address space announced: 40.4
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 90716
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38780
Total APNIC prefixes after maximum aggregation: 16306
Prefixes being announced from the APNIC address blocks: 36506
Unique aggregates announced from the APNIC address blocks: 17899
APNIC Region origin ASes present in the Internet Routing Table: 2524
APNIC Region origin ASes announcing only one prefix: 723
APNIC Region transit ASes present in the Internet Routing Table: 385
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 219500256
Equivalent to 13 /8s, 21 /16s and 78 /24s
Percentage of available APNIC address space announced: 68.6
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: 96841
Total ARIN prefixes after maximum aggregation: 57217
Prefixes being announced from the ARIN address blocks: 75922
Unique aggregates announced from the ARIN address blocks: 28996
ARIN Region origin ASes present in the Internet Routing Table: 10603
ARIN Region origin ASes announcing only one prefix: 3961
ARIN Region transit ASes present in the Internet Routing Table: 977
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293345536
Equivalent to 17 /8s, 124 /16s and 25 /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: 36675
Total RIPE prefixes after maximum aggregation: 24611
Prefixes being announced from the RIPE address blocks: 33723
Unique aggregates announced from the RIPE address blocks: 22861
RIPE Region origin ASes present in the Internet Routing Table: 7809
RIPE Region origin ASes announcing only one prefix: 4088
RIPE Region transit ASes present in the Internet Routing Table: 1303
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 242826624
Equivalent to 14 /8s, 121 /16s and 61 /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: 10513
Total LACNIC prefixes after maximum aggregation: 3582
Prefixes being announced from the LACNIC address blocks: 8673
Unique aggregates announced from the LACNIC address blocks: 5253
LACNIC Region origin ASes present in the Internet Routing Table: 683
LACNIC Region origin ASes announcing only one prefix: 224
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: 25920256
Equivalent to 1 /8s, 139 /16s and 131 /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: 2067
Total AfriNIC prefixes after maximum aggregation: 887
Prefixes being announced from the AfriNIC address blocks: 1400
Unique aggregates announced from the AfriNIC address blocks: 911
AfriNIC Region origin ASes present in the Internet Routing Table: 150
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: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3946240
Equivalent to 0 /8s, 60 /16s and 55 /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 619 1556 473 Telstra Pty Ltd
9498 560 211 71 BHARTI BT INTERNET LTD.
7545 529 108 71 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 375 91 170 Wantree Development
2907 336 1749 312 SINET Japan
17974 328 90 34 PT TELEKOMUNIKASI INDONESIA
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 1506 6263 967 AT&T WorldNet Services
4323 1245 714 248 Time Warner Telecom
721 1012 21962 307 DLA Systems Automation Center
6197 1006 620 469 BellSouth Network Solutions,
174 959 5784 906 Cogent Communications
701 946 8050 783 UUNET Technologies, Inc.
18566 923 272 8 Covad Communications
2386 874 521 665 AT&T Data Communications Serv
1239 852 2805 606 Sprint
19029 784 152 112 New Edge Networks
209 701 3607 544 Qwest
20115 672 589 360 Charter Communications
19262 665 1968 156 Verizon Global Networks
22773 642 1480 40 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 612 212 398 Citizens Utilities
6198 583 506 239 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 307 1564 31 Ibernet, Internet Access Netw
8220 290 473 269 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 215 276 201 Romania Data Systems S.A.
8551 202 197 23 Bezeq International
24863 200 40 9 LINKdotNET AS number
1257 198 711 173 SWIPnet Swedish IP Network
3269 197 2086 76 TELECOM ITALIA
3215 187 1550 87 France Telecom Transpac
786 171 1778 171 The JANET IP Service
8866 170 37 14 Bulgarian Telecommunication C
6830 167 765 35 UPC Distribution Services
5400 166 328 135 BT Ignite European Backbone
5515 161 839 120 Sonera Solution Autonomous Sy
9121 161 931 26 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 589 1009 227 UniNet S.A. de C.V.
22047 386 142 10 VTR PUNTO NET S.A.
11172 318 110 81 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
19169 123 8 32 Telconet
21826 123 16 20 INTERCABLE
10481 121 48 8 Prima S.A.
6503 119 149 74 AVANTEL, S.A.
6505 106 88 78 Global One Communicaoes Ltda
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 125 314 105 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
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
21280 20 5 5 Swift Global Kenya Ltd.Is an
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 923 915 Covad Communications
9583 876 860 Sify Limited
4755 891 821 Videsh Sanchar Nigam Ltd. Aut
4134 997 784 CHINANET-BACKBONE
721 1012 705 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 529 458 TPG Internet Pty Ltd
7757 473 454 AT&T Broadband
3602 538 429 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
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 /11:26 /12:88
/13:199 /14:356 /15:690 /16:8755 /17:3159 /18:5159
/19:11441 /20:12866 /21:11102 /22:14204 /23:15339 /24:100473
/25:341 /26:246 /27:213 /28:63 /29:63 /30:34
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 906 923 Covad Communications
7018 798 1506 AT&T WorldNet Services
6197 795 1006 BellSouth Network Solutions,
19029 711 784 New Edge Networks
9583 695 876 Sify Limited
11492 618 627 Cable One
4323 602 1245 Time Warner Telecom
2386 598 874 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 524 612 Citizens Utilities
4766 485 676 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 441 583 BellSouth Network Solutions,
855 420 546 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 377 852 Sprint
702 367 586 UUNET - Commercial IP service
15270 363 393 PaeTec.net -a division of Pae
6517 347 377 Yipes Communications, Inc.
22773 336 642 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1622 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 58:152 59:190 60:182
61:822 62:809 63:1923 64:3116 65:2229 66:3081
67:616 68:681 69:1435 70:313 71:68 72:652
73:23 74:26 80:756 81:612 82:546 83:370
84:369 85:497 86:337 87:267 88:47 89:107
124:196 125:278 128:161 129:178 130:108 131:320
132:33 133:8 134:150 135:47 136:177 137:68
138:195 139:75 140:469 141:134 142:393 143:157
144:225 145:40 146:322 147:133 148:337 149:189
150:114 151:80 152:65 153:107 154:6 155:196
156:99 157:119 158:166 159:168 160:86 161:68
162:253 163:145 164:179 165:182 166:166 167:243
168:480 169:134 170:323 171:12 172:1 183:1
190:45 192:5770 193:3399 194:2545 195:1796 196:804
198:3878 199:3265 200:4280 201:667 202:6507 203:6821
204:3930 205:2082 206:2426 207:2928 208:2029 209:3700
210:1902 211:818 212:1241 213:1435 214:337 215:42
216:4082 217:1171 218:240 219:169 220:654 221:351
222:158
End of report
