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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 29 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 180255
Prefixes after maximum aggregation: 100588
Unique aggregates announced to Internet: 87556
Total ASes present in the Internet Routing Table: 21385
Origin-only ASes present in the Internet Routing Table: 18588
Origin ASes announcing only one prefix: 8815
Transit ASes present in the Internet Routing Table: 2797
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: 22
Prefixes from unregistered ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1485234208
Equivalent to 88 /8s, 134 /16s and 224 /24s
Percentage of available address space announced: 40.1
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 87478
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37754
Total APNIC prefixes after maximum aggregation: 15938
Prefixes being announced from the APNIC address blocks: 35535
Unique aggregates announced from the APNIC address blocks: 17397
APNIC Region origin ASes present in the Internet Routing Table: 2465
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 380
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211556320
Equivalent to 12 /8s, 156 /16s and 23 /24s
Percentage of available APNIC address space announced: 66.1
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: 94942
Total ARIN prefixes after maximum aggregation: 56457
Prefixes being announced from the ARIN address blocks: 74221
Unique aggregates announced from the ARIN address blocks: 28244
ARIN Region origin ASes present in the Internet Routing Table: 10471
ARIN Region origin ASes announcing only one prefix: 3902
ARIN Region transit ASes present in the Internet Routing Table: 974
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 284611584
Equivalent to 16 /8s, 246 /16s and 212 /24s
Percentage of available ARIN address space announced: 70.7
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: 35386
Total RIPE prefixes after maximum aggregation: 23864
Prefixes being announced from the RIPE address blocks: 32382
Unique aggregates announced from the RIPE address blocks: 21746
RIPE Region origin ASes present in the Internet Routing Table: 7564
RIPE Region origin ASes announcing only one prefix: 3957
RIPE Region transit ASes present in the Internet Routing Table: 1251
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 230558848
Equivalent to 13 /8s, 190 /16s and 12 /24s
Percentage of available RIPE address space announced: 68.7
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: 10308
Total LACNIC prefixes after maximum aggregation: 3461
Prefixes being announced from the LACNIC address blocks: 8492
Unique aggregates announced from the LACNIC address blocks: 5076
LACNIC Region origin ASes present in the Internet Routing Table: 667
LACNIC Region origin ASes announcing only one prefix: 218
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24854528
Equivalent to 1 /8s, 123 /16s and 64 /24s
Percentage of available LACNIC address space announced: 37.0
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: 1858
Total AfriNIC prefixes after maximum aggregation: 868
Prefixes being announced from the AfriNIC address blocks: 1228
Unique aggregates announced from the AfriNIC address blocks: 860
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3040256
Equivalent to 0 /8s, 46 /16s and 100 /24s
Percentage of available AfriNIC address space announced: 9.1
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 982 6462 204 CHINANET-BACKBONE
9583 847 109 15 Sify Limited
4755 793 258 62 Videsh Sanchar Nigam Ltd. Aut
4766 720 3930 304 Korea Telecom (KIX)
1221 669 1428 476 Telstra Pty Ltd
7545 516 108 70 TPG Internet Pty Ltd
9498 515 211 69 BHARTI BT INTERNET LTD.
17676 480 6949 104 Softbank BB Corp.
17488 435 26 9 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 366 75 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 330 68 23 Reliance Infocom Ltd Internet
17974 316 77 37 PT TELEKOMUNIKASI INDONESIA
17557 312 25 161 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 259 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1466 6245 950 AT&T WorldNet Services
4323 1207 724 236 Time Warner Telecom
174 1036 5791 947 Cogent Communications
721 1028 21970 310 DLA Systems Automation Center
6197 985 593 475 BellSouth Network Solutions,
701 962 8067 804 UUNET Technologies, Inc.
18566 897 272 8 Covad Communications
2386 883 501 691 AT&T Data Communications Serv
1239 848 2792 601 Sprint
20115 671 545 350 Charter Communications
209 665 3604 531 Qwest
6198 636 449 238 BellSouth Network Solutions,
11492 632 89 12 Cable One
22773 611 1478 33 Cox Communications, Inc.
19262 604 1743 146 Verizon Global Networks
855 573 243 65 Canadian Research Network
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
6478 537 1517 298 AT&T Worldnet Services
3602 522 127 106 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 588 1954 464 UUNET - Commercial IP service
3301 303 1071 289 TeliaNet Sweden
3352 302 1500 34 Ibernet, Internet Access Netw
3320 281 3485 235 Deutsche Telekom AG
8220 275 474 269 COLT Telecommunications
680 248 2025 239 DFN-IP service G-WiN
3246 229 487 219 Song Networks
8708 223 275 207 Romania Data Systems S.A.
6746 218 85 188 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
8866 172 37 13 Bulgarian Telecommunication C
24863 169 38 9 LINKdotNET AS number
3215 167 1366 81 France Telecom Transpac
5400 166 328 136 BT Ignite European Backbone
3300 164 170 93 AUCS Communications Services
6830 159 669 33 UPC Distribution Services
12479 156 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 559 1048 216 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 304 110 77 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 189 51 18 Mega Cable S.A. de C.V.
14117 181 11 6 Telefonica del Sur S.A.
6147 154 126 22 Telefonica Del Peru
7303 154 73 18 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
19169 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 114 148 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 79 Global One Communicaoes Ltda
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
19429 96 52 49 E.T.B.
11311 94 8 23 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 819 233 The Internet Solution
8452 151 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 76 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
24835 73 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
5713 38 166 34 Telkom SA Ltd
33774 37 9 28 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
12455 28 6 5 Jambonet Autonomous system
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
8346 20 14 19 SONATEL-AS Autonomous System
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1207 971 Time Warner Telecom
18566 897 889 Covad Communications
9583 847 832 Sify Limited
4134 982 778 CHINANET-BACKBONE
4755 793 731 Videsh Sanchar Nigam Ltd. Aut
721 1028 718 DLA Systems Automation Center
11492 632 620 Cable One
22773 611 578 Cox Communications, Inc.
6197 985 510 BellSouth Network Solutions,
19916 563 509 OLM LLC
855 573 508 Canadian Research Network
5668 521 497 CenturyTel Internet Holdings,
19262 604 458 Verizon Global Networks
7545 516 446 TPG Internet Pty Ltd
9498 515 446 BHARTI BT INTERNET LTD.
7757 446 427 AT&T Broadband
17488 435 426 Hathway IP Over Cable Interne
4766 720 416 Korea Telecom (KIX)
3602 522 416 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
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
192.43.230.0/24 7575 Australian Academic and Rease
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 /8:18 /9:5 /10:8 /11:20 /12:87
/13:198 /14:350 /15:684 /16:8667 /17:2982 /18:4988
/19:11229 /20:12424 /21:10793 /22:13824 /23:15017 /24:98002
/25:315 /26:259 /27:203 /28:61 /29:26 /30:55
/31:3 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 880 897 Covad Communications
6197 784 985 BellSouth Network Solutions,
7018 745 1466 AT&T WorldNet Services
9583 666 847 Sify Limited
11492 623 632 Cable One
2386 617 883 AT&T Data Communications Serv
4323 582 1207 Time Warner Telecom
19916 557 563 OLM LLC
4766 520 720 Korea Telecom (KIX)
6198 501 636 BellSouth Network Solutions,
855 445 573 Canadian Research Network
7757 428 446 AT&T Broadband
5668 409 521 CenturyTel Internet Holdings,
7011 406 472 Citizens Utilities
702 375 588 UUNET - Commercial IP service
1239 368 848 Sprint
6517 344 371 Yipes Communications, Inc.
15270 338 366 PaeTec.net -a division of Pae
22773 318 611 Cox Communications, Inc.
812 317 438 Rogers WAVE
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1635 13:1 15:11 16:3
17:3 18:4 20:42 24:859 25:1 30:2
32:66 38:191 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:163 60:183
61:822 62:745 63:1898 64:2963 65:2229 66:3093
67:590 68:665 69:1423 70:300 71:54 72:611
73:23 80:742 81:600 82:508 83:356 84:343
85:424 86:281 87:153 88:17 89:7 124:8
125:190 128:152 129:174 130:103 131:310 132:34
133:7 134:152 135:46 136:166 137:61 138:183
139:89 140:445 141:133 142:414 143:144 144:225
145:39 146:307 147:134 148:322 149:185 150:114
151:72 152:61 153:104 154:6 155:186 156:90
157:120 158:156 159:180 160:88 161:68 162:263
163:177 164:170 165:181 166:145 167:236 168:478
169:139 170:316 171:12 190:30 192:5755 193:3351
194:2474 195:1747 196:742 198:3891 199:3264 200:4218
201:569 202:6443 203:6752 204:3882 205:2106 206:2436
207:2922 208:2013 209:3526 210:1866 211:789 212:1283
213:1435 214:320 215:40 216:3844 217:1153 218:235
219:133 220:640 221:336 222:147
End of report
