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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 20 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 186938
Prefixes after maximum aggregation: 103264
Unique aggregates announced to Internet: 91434
Total ASes present in the Internet Routing Table: 21973
Origin-only ASes present in the Internet Routing Table: 19111
Origin ASes announcing only one prefix: 9105
Transit ASes present in the Internet Routing Table: 2862
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1508590112
Equivalent to 89 /8s, 235 /16s and 66 /24s
Percentage of available address space announced: 40.7
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 92265
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39154
Total APNIC prefixes after maximum aggregation: 16437
Prefixes being announced from the APNIC address blocks: 36852
Unique aggregates announced from the APNIC address blocks: 18150
APNIC Region origin ASes present in the Internet Routing Table: 2544
APNIC Region origin ASes announcing only one prefix: 721
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 222202336
Equivalent to 13 /8s, 62 /16s and 137 /24s
Percentage of available APNIC address space announced: 69.5
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: 97357
Total ARIN prefixes after maximum aggregation: 57483
Prefixes being announced from the ARIN address blocks: 76457
Unique aggregates announced from the ARIN address blocks: 29415
ARIN Region origin ASes present in the Internet Routing Table: 10646
ARIN Region origin ASes announcing only one prefix: 3993
ARIN Region transit ASes present in the Internet Routing Table: 985
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294737408
Equivalent to 17 /8s, 145 /16s and 86 /24s
Percentage of available ARIN address space announced: 73.2
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: 37191
Total RIPE prefixes after maximum aggregation: 24823
Prefixes being announced from the RIPE address blocks: 34267
Unique aggregates announced from the RIPE address blocks: 23068
RIPE Region origin ASes present in the Internet Routing Table: 7890
RIPE Region origin ASes announcing only one prefix: 4123
RIPE Region transit ASes present in the Internet Routing Table: 1308
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 246134336
Equivalent to 14 /8s, 171 /16s and 182 /24s
Percentage of available RIPE address space announced: 73.4
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: 11083
Total LACNIC prefixes after maximum aggregation: 3614
Prefixes being announced from the LACNIC address blocks: 9192
Unique aggregates announced from the LACNIC address blocks: 5417
LACNIC Region origin ASes present in the Internet Routing Table: 681
LACNIC Region origin ASes announcing only one prefix: 222
LACNIC Region transit ASes present in the Internet Routing Table: 128
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 26492160
Equivalent to 1 /8s, 148 /16s and 61 /24s
Percentage of available LACNIC address space announced: 39.5
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: 2146
Total AfriNIC prefixes after maximum aggregation: 907
Prefixes being announced from the AfriNIC address blocks: 1453
Unique aggregates announced from the AfriNIC address blocks: 953
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: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4034304
Equivalent to 0 /8s, 61 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 12.0
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 1054 7017 208 CHINANET-BACKBONE
9583 886 109 16 Sify Limited
4755 760 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 683 4436 304 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 571 212 72 BHARTI BT INTERNET LTD.
7545 524 108 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
18101 340 69 18 Reliance Infocom Ltd Internet
17849 338 21 114 Telecommunications Technology
2907 336 1749 312 SINET Japan
9929 322 220 56 China Netcom Corp.
17557 317 27 161 Pakistan Telecom
17974 305 120 27 PT TELEKOMUNIKASI INDONESIA
7474 297 210 229 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
4837 267 2890 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6254 978 AT&T WorldNet Services
4323 1261 733 251 Time Warner Telecom
721 1007 21929 304 DLA Systems Automation Center
6197 1007 618 475 BellSouth Network Solutions,
174 960 5785 908 Cogent Communications
19029 953 151 111 New Edge Networks
701 936 8047 777 UUNET Technologies, Inc.
18566 933 272 8 Covad Communications
2386 877 537 669 AT&T Data Communications Serv
1239 850 2804 603 Sprint
209 718 3615 560 Qwest
20115 676 595 365 Charter Communications
19262 675 1984 158 Verizon Global Networks
22773 644 1487 41 Cox Communications, Inc.
7011 631 217 412 Citizens Utilities
11492 616 86 19 Cable One
6198 591 534 236 BellSouth Network Solutions,
852 584 1085 386 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 559 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 576 1950 453 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 294 474 272 COLT Telecommunications
3320 284 3988 235 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 228 89 202 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 208 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 198 711 173 SWIPnet Swedish IP Network
3269 195 2070 74 TELECOM ITALIA
3215 192 1614 90 France Telecom Transpac
8866 176 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
6830 162 765 35 UPC Distribution Services
3300 160 172 90 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 694 1067 228 UniNet S.A. de C.V.
22047 400 158 11 VTR PUNTO NET S.A.
11172 321 110 84 Servicios Alestra S.A de C.V
16814 313 20 8 NSS, S.A.
14117 189 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 153 124 23 Telefonica Del Peru
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
21826 130 16 21 INTERCABLE
19169 126 8 29 Telconet
6503 124 149 75 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
18822 114 8 10 TELEFONICA MANQUEHUE
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
23216 104 21 8 RAMtelecom Telecomunicaciones
19429 102 57 43 E.T.B.
7315 96 6 3 Grupo Rey Moreno
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 232 The Internet Solution
8452 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 93 6 12 EEPAD TISP TELECOM & INTERNET
15475 88 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 36 6 6 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1261 1010 Time Warner Telecom
18566 933 925 Covad Communications
9583 886 870 Sify Limited
4134 1054 846 CHINANET-BACKBONE
19029 953 842 New Edge Networks
721 1007 703 DLA Systems Automation Center
4755 760 693 Videsh Sanchar Nigam Ltd. Aut
22773 644 603 Cox Communications, Inc.
11492 616 597 Cable One
6197 1007 532 BellSouth Network Solutions,
19262 675 517 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 571 499 BHARTI BT INTERNET LTD.
855 559 496 Canadian Research Network
17488 501 494 Hathway IP Over Cable Interne
8151 694 466 UniNet S.A. de C.V.
7757 477 458 AT&T Broadband
7545 524 455 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
64501 RESERVED 68.142.125.0/24 22822 Limelight Networks,
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64624 PRIVATE 204.114.220.0/24 18113 Pfizer Pte Ltd Singa
64624 PRIVATE 204.114.221.0/24 18113 Pfizer Pte Ltd Singa
65412 PRIVATE 221.123.128.0/20 24405 Beijing CJWX Communi
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
121.128.0.0/11 4766 Korea Telecom (KIX)
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
192.119.135.0/24 270 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 /10:9 /11:28 /12:88
/13:200 /14:357 /15:698 /16:8792 /17:3179 /18:5237
/19:11551 /20:13021 /21:11253 /22:14423 /23:15526 /24:101512
/25:370 /26:253 /27:218 /28:61 /29:69 /30:34
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 916 933 Covad Communications
19029 885 953 New Edge Networks
6197 795 1007 BellSouth Network Solutions,
7018 792 1505 AT&T WorldNet Services
9583 715 886 Sify Limited
11492 607 616 Cable One
4323 606 1261 Time Warner Telecom
2386 597 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 631 Citizens Utilities
4766 491 683 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 442 591 BellSouth Network Solutions,
855 434 559 Canadian Research Network
5668 416 535 CenturyTel Internet Holdings,
1239 380 850 Sprint
15270 372 403 PaeTec.net -a division of Pae
702 359 576 UUNET - Commercial IP service
6517 354 383 Yipes Communications, Inc.
8151 338 694 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1625 13:1 15:12 16:3
17:3 18:4 20:43 24:876 25:1 30:2
32:66 38:211 40:54 44:3 47:6 52:4
55:1 56:3 57:32 58:145 59:192 60:180
61:831 62:786 63:1921 64:3124 65:2235 66:3066
67:631 68:685 69:1476 70:333 71:76 72:687
73:23 74:29 80:770 81:628 82:624 83:382
84:379 85:522 86:345 87:316 88:71 89:148
124:219 125:367 128:161 129:176 130:107 131:315
132:31 133:8 134:153 135:46 136:177 137:70
138:198 139:66 140:466 141:134 142:395 143:161
144:228 145:42 146:323 147:133 148:322 149:187
150:114 151:80 152:64 153:107 154:6 155:196
156:96 157:139 158:165 159:171 160:87 161:73
162:253 163:145 164:179 165:204 166:163 167:244
168:478 169:134 170:331 171:12 172:1 183:1
190:96 192:5762 193:3365 194:2585 195:1826 196:848
198:3890 199:3248 200:4347 201:848 202:6528 203:6790
204:3883 205:2100 206:2416 207:2931 208:2053 209:3848
210:1940 211:700 212:1256 213:1461 214:340 215:41
216:4128 217:1171 218:259 219:179 220:646 221:355
222:146
End of report
