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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 29 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 190847
Prefixes after maximum aggregation: 105290
Unique aggregates announced to Internet: 93556
Total ASes present in the Internet Routing Table: 22541
Origin-only ASes present in the Internet Routing Table: 19614
Origin ASes announcing only one prefix: 9404
Transit ASes present in the Internet Routing Table: 2927
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1533779944
Equivalent to 91 /8s, 107 /16s and 159 /24s
Percentage of available address space announced: 41.4
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94363
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40943
Total APNIC prefixes after maximum aggregation: 16937
Prefixes being announced from the APNIC address blocks: 38656
Unique aggregates announced from the APNIC address blocks: 18417
APNIC Region origin ASes present in the Internet Routing Table: 2619
APNIC Region origin ASes announcing only one prefix: 746
APNIC Region transit ASes present in the Internet Routing Table: 399
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 230553952
Equivalent to 13 /8s, 189 /16s and 249 /24s
Percentage of available APNIC address space announced: 72.1
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: 97692
Total ARIN prefixes after maximum aggregation: 58074
Prefixes being announced from the ARIN address blocks: 71530
Unique aggregates announced from the ARIN address blocks: 26999
ARIN Region origin ASes present in the Internet Routing Table: 10796
ARIN Region origin ASes announcing only one prefix: 4078
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294815744
Equivalent to 17 /8s, 146 /16s and 136 /24s
Percentage of available ARIN address space announced: 76.4
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38319
Total RIPE prefixes after maximum aggregation: 25652
Prefixes being announced from the RIPE address blocks: 35374
Unique aggregates announced from the RIPE address blocks: 23879
RIPE Region origin ASes present in the Internet Routing Table: 8200
RIPE Region origin ASes announcing only one prefix: 4300
RIPE Region transit ASes present in the Internet Routing Table: 1352
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 254908548
Equivalent to 15 /8s, 49 /16s and 152 /24s
Percentage of available RIPE address space announced: 80.0
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11624
Total LACNIC prefixes after maximum aggregation: 3728
Prefixes being announced from the LACNIC address blocks: 9748
Unique aggregates announced from the LACNIC address blocks: 5574
LACNIC Region origin ASes present in the Internet Routing Table: 703
LACNIC Region origin ASes announcing only one prefix: 235
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28018176
Equivalent to 1 /8s, 171 /16s and 134 /24s
Percentage of available LACNIC address space announced: 41.8
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: 2265
Total AfriNIC prefixes after maximum aggregation: 899
Prefixes being announced from the AfriNIC address blocks: 1521
Unique aggregates announced from the AfriNIC address blocks: 949
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4145152
Equivalent to 0 /8s, 63 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 12.4
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 1241 7286 228 CHINANET-BACKBONE
4755 940 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 907 109 15 Sify Limited
4766 689 4435 303 Korea Telecom (KIX)
9498 653 211 67 BHARTI BT INTERNET LTD.
1221 612 1668 470 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17676 490 7093 110 Softbank BB Corp.
17488 487 30 40 Hathway IP Over Cable Interne
9443 452 111 83 Primus Telecommunications
18101 421 85 24 Reliance Infocom Ltd Internet
17557 389 30 170 Pakistan Telecom
4802 382 81 169 Wantree Development
17974 380 129 14 PT TELEKOMUNIKASI INDONESIA
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 297 211 227 SingTel Optus Pty Ltd
10139 281 19 5 Meridian Telekoms
4837 279 3085 123 chinanet IDC center beijing n
9800 276 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6264 946 AT&T WorldNet Services
4323 1320 744 263 Time Warner Telecom
721 1022 21998 314 DLA Systems Automation Center
6197 1014 636 477 BellSouth Network Solutions,
174 961 5771 896 Cogent Communications
18566 945 272 8 Covad Communications
701 943 6754 779 UUNET Technologies, Inc.
2386 917 560 711 AT&T Data Communications Serv
1239 845 2788 600 Sprint
19262 718 2152 187 Verizon Global Networks
20115 713 619 381 Charter Communications
209 696 3683 551 Qwest
22773 668 1741 40 Cox Communications, Inc.
7011 646 217 410 Citizens Utilities
11492 642 89 10 Cable One
6198 603 568 237 BellSouth Network Solutions,
852 583 1084 382 Telus Advanced Communications
855 571 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 569 1954 448 UUNET - Commercial IP service
3301 312 1327 297 TeliaNet Sweden
3352 305 1643 30 Ibernet, Internet Access Netw
3320 287 3989 241 Deutsche Telekom AG
8220 275 470 264 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 239 90 214 Dynamic Network Technologies,
3246 225 462 216 Song Networks
8708 217 276 203 Romania Data Systems S.A.
24863 215 42 10 LINKdotNET AS number
8551 209 198 29 Bezeq International
3269 202 2184 73 TELECOM ITALIA
3215 201 1720 96 France Telecom Transpac
30890 199 18 76 SC Kappa Invexim SRL
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 98 AUCS Communications Services
12479 161 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 724 1114 225 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 354 111 84 Servicios Alestra S.A de C.V
16814 328 20 7 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 176 82 24 Telecom Argentina Stet-France
6503 172 151 84 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 128 8 24 Telconet
19429 127 68 41 E.T.B.
14259 119 10 15 GTD Internet S.A.
14522 116 18 9 SatNet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7738 105 410 20 Telecomunicacoes da Bahia S.A
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 287 803 234 The Internet Solution
8452 167 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 113 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 24 6 3 Jambonet Autonomous system
16637 24 14 22 Johnnic e-Ventures
21280 23 4 4 Swift Global Kenya Ltd.Is an
23889 23 8 11 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1320 1057 Time Warner Telecom
4134 1241 1013 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 907 892 Sify Limited
4755 940 866 Videsh Sanchar Nigam Ltd. Aut
721 1022 708 DLA Systems Automation Center
11492 642 632 Cable One
22773 668 628 Cox Communications, Inc.
9498 653 586 BHARTI BT INTERNET LTD.
6197 1014 537 BellSouth Network Solutions,
19262 718 531 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
8151 724 499 UniNet S.A. de C.V.
855 571 497 Canadian Research Network
7545 546 476 TPG Internet Pty Ltd
17488 487 447 Hathway IP Over Cable Interne
3602 526 422 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
15270 439 406 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
65535 PRIVATE 202.136.215.0/24 24141 Shanghai DMT Informa
65535 PRIVATE 202.136.217.0/24 24141 Shanghai DMT Informa
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
192.84.205.0/24 719 LANLINK autonomous system
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 /10:9 /11:28 /12:93
/13:201 /14:364 /15:714 /16:8864 /17:3275 /18:5398
/19:11784 /20:13396 /21:11665 /22:14823 /23:15897 /24:103233
/25:384 /26:292 /27:181 /28:63 /29:63 /30:55
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 794 1014 BellSouth Network Solutions,
7018 790 1482 AT&T WorldNet Services
9583 737 907 Sify Limited
4323 643 1320 Time Warner Telecom
2386 634 917 AT&T Data Communications Serv
11492 630 642 Cable One
19916 557 563 OLM LLC
7011 555 646 Citizens Utilities
4766 500 689 Korea Telecom (KIX)
855 445 571 Canadian Research Network
6198 445 603 BellSouth Network Solutions,
5668 412 529 CenturyTel Internet Holdings,
15270 408 439 PaeTec.net -a division of Pae
1239 389 845 Sprint
9498 377 653 BHARTI BT INTERNET LTD.
4755 374 940 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
8151 358 724 UniNet S.A. de C.V.
702 353 569 UUNET - Commercial IP service
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1612 13:1 15:16 16:3
17:3 18:4 20:41 24:768 25:1 32:58
38:229 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:187 59:241 60:179
61:868 62:806 63:1886 64:3179 65:2244 66:3135
67:617 68:678 69:1525 70:385 71:86 72:798
74:50 75:1 80:771 81:645 82:628 83:398
84:376 85:560 86:388 87:367 88:107 89:295
121:1 122:2 123:1 124:168 125:496 128:143
129:189 130:119 131:313 132:33 133:8 134:160
135:48 136:178 137:83 138:206 139:55 140:522
141:134 142:383 143:168 144:224 145:39 146:320
147:137 148:336 149:190 150:114 151:93 152:69
153:106 154:5 155:201 156:183 157:145 158:166
159:171 160:92 161:77 162:245 163:158 164:181
165:211 166:172 167:243 168:494 169:128 170:353
171:14 183:1 190:80 192:5729 193:3356 194:2647
195:1936 196:853 198:3962 199:3235 200:4474 201:1001
202:6696 203:6997 204:3909 205:2042 206:2423 207:2918
208:2158 209:3398 210:2025 211:712 212:1256 213:1479
214:360 215:41 216:3999 217:1172 218:294 219:234
220:730 221:364 222:188
End of report
