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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 21 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187052
Prefixes after maximum aggregation: 103300
Unique aggregates announced to Internet: 91480
Total ASes present in the Internet Routing Table: 21969
Origin-only ASes present in the Internet Routing Table: 19110
Origin ASes announcing only one prefix: 9100
Transit ASes present in the Internet Routing Table: 2859
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: 29
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1509094560
Equivalent to 89 /8s, 242 /16s and 244 /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: 92319
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39186
Total APNIC prefixes after maximum aggregation: 16458
Prefixes being announced from the APNIC address blocks: 36887
Unique aggregates announced from the APNIC address blocks: 18172
APNIC Region origin ASes present in the Internet Routing Table: 2543
APNIC Region origin ASes announcing only one prefix: 723
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 222300128
Equivalent to 13 /8s, 64 /16s and 7 /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: 97431
Total ARIN prefixes after maximum aggregation: 57481
Prefixes being announced from the ARIN address blocks: 76494
Unique aggregates announced from the ARIN address blocks: 29417
ARIN Region origin ASes present in the Internet Routing Table: 10650
ARIN Region origin ASes announcing only one prefix: 3994
ARIN Region transit ASes present in the Internet Routing Table: 987
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 295767552
Equivalent to 17 /8s, 161 /16s and 14 /24s
Percentage of available ARIN address space announced: 73.5
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: 37223
Total RIPE prefixes after maximum aggregation: 24843
Prefixes being announced from the RIPE address blocks: 34277
Unique aggregates announced from the RIPE address blocks: 23092
RIPE Region origin ASes present in the Internet Routing Table: 7884
RIPE Region origin ASes announcing only one prefix: 4114
RIPE Region transit ASes present in the Internet Routing Table: 1301
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 245417408
Equivalent to 14 /8s, 160 /16s and 197 /24s
Percentage of available RIPE address space announced: 73.1
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: 11077
Total LACNIC prefixes after maximum aggregation: 3614
Prefixes being announced from the LACNIC address blocks: 9205
Unique aggregates announced from the LACNIC address blocks: 5408
LACNIC Region origin ASes present in the Internet Routing Table: 680
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: 4.1
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 26500608
Equivalent to 1 /8s, 148 /16s and 94 /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: 2129
Total AfriNIC prefixes after maximum aggregation: 904
Prefixes being announced from the AfriNIC address blocks: 1456
Unique aggregates announced from the AfriNIC address blocks: 950
AfriNIC Region origin ASes present in the Internet Routing Table: 151
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: 4042240
Equivalent to 0 /8s, 61 /16s and 174 /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 1057 7018 211 CHINANET-BACKBONE
9583 890 109 16 Sify Limited
4755 764 257 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 525 108 68 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 306 120 27 PT TELEKOMUNIKASI INDONESIA
7474 296 210 228 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
9837 265 77 161 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1508 6254 981 AT&T WorldNet Services
4323 1263 733 251 Time Warner Telecom
6197 1009 618 475 BellSouth Network Solutions,
721 1007 21961 304 DLA Systems Automation Center
174 961 5787 910 Cogent Communications
19029 954 151 111 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 681 596 363 Charter Communications
19262 676 1985 158 Verizon Global Networks
22773 648 1735 40 Cox Communications, Inc.
7011 631 217 412 Citizens Utilities
11492 622 86 20 Cable One
6198 591 534 236 BellSouth Network Solutions,
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 455 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 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 196 710 171 SWIPnet Swedish IP Network
3269 195 2070 74 TELECOM ITALIA
3215 192 1614 90 France Telecom Transpac
8866 177 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 167 765 35 UPC Distribution Services
30890 163 15 61 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 695 1067 229 UniNet S.A. de C.V.
22047 400 158 11 VTR PUNTO NET S.A.
11172 322 110 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 132 16 21 INTERCABLE
19169 125 8 28 Telconet
6503 122 149 75 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
23216 107 21 8 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 102 57 43 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 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 118 50 7 RAYA Telecom - Egypt
33783 93 6 12 EEPAD TISP TELECOM & INTERNET
2905 74 155 67 The Internetworking Company o
15475 65 84 4 Nile Online
20928 57 16 2 Noor Advanced Technologies AS
12455 43 6 6 Jambonet Autonomous system
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 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 21 14 18 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 1263 1012 Time Warner Telecom
18566 933 925 Covad Communications
9583 890 874 Sify Limited
4134 1057 846 CHINANET-BACKBONE
19029 954 843 New Edge Networks
721 1007 703 DLA Systems Automation Center
4755 764 697 Videsh Sanchar Nigam Ltd. Aut
22773 648 608 Cox Communications, Inc.
11492 622 602 Cable One
6197 1009 534 BellSouth Network Solutions,
19262 676 518 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 571 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 553 490 Canadian Research Network
8151 695 466 UniNet S.A. de C.V.
7757 477 458 AT&T Broadband
7545 525 457 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
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
192.208.171.0/24 4750 Loxley Information Co., Ltd.
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
/13:199 /14:357 /15:699 /16:8796 /17:3179 /18:5235
/19:11561 /20:13033 /21:11249 /22:14447 /23:15535 /24:101562
/25:372 /26:254 /27:221 /28:64 /29:70 /30:36
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 916 933 Covad Communications
19029 886 954 New Edge Networks
6197 797 1009 BellSouth Network Solutions,
7018 795 1508 AT&T WorldNet Services
9583 719 890 Sify Limited
11492 613 622 Cable One
4323 608 1263 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,
855 428 553 Canadian Research Network
5668 416 535 CenturyTel Internet Holdings,
1239 379 850 Sprint
15270 372 403 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 355 384 Yipes Communications, Inc.
8151 339 695 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 24:883 25:1 30:2
32:66 38:211 40:54 44:3 47:6 52:4
55:1 56:3 57:32 58:145 59:194 60:180
61:834 62:764 63:1924 64:3121 65:2240 66:3066
67:630 68:685 69:1477 70:334 71:76 72:689
73:23 74:29 80:777 81:628 82:627 83:382
84:379 85:524 86:347 87:316 88:71 89:148
124:220 125:366 128:163 129:176 130:107 131:317
132:31 133:8 134:154 135:46 136:177 137:70
138:198 139:66 140:467 141:134 142:388 143:161
144:228 145:42 146:324 147:133 148:322 149:187
150:114 151:80 152:64 153:107 154:6 155:196
156:96 157:142 158:165 159:171 160:87 161:73
162:253 163:145 164:177 165:204 166:163 167:245
168:477 169:134 170:330 171:12 172:1 183:1
190:95 192:5765 193:3362 194:2584 195:1825 196:846
198:3893 199:3244 200:4356 201:851 202:6557 203:6784
204:3884 205:2094 206:2417 207:2930 208:2056 209:3847
210:1941 211:699 212:1258 213:1466 214:341 215:41
216:4132 217:1169 218:259 219:179 220:647 221:356
222:146
End of report
