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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 10 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/10/0400
Analysis Summary
----------------
BGP routing table entries examined: 233960
Prefixes after maximum aggregation: 121431
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113964
Total ASes present in the Internet Routing Table: 26422
Prefixes per ASN: 8.85
Origin-only ASes present in the Internet Routing Table: 22999
Origin ASes announcing only one prefix: 11213
Transit ASes present in the Internet Routing Table: 3423
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 21
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1790508576
Equivalent to 106 /8s, 184 /16s and 254 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 108101
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54872
Total APNIC prefixes after maximum aggregation: 21058
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 51793
Unique aggregates announced from the APNIC address blocks: 22946
APNIC Region origin ASes present in the Internet Routing Table: 3071
APNIC Prefixes per ASN: 16.87
APNIC Region origin ASes announcing only one prefix: 817
APNIC Region transit ASes present in the Internet Routing Table: 469
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 320994016
Equivalent to 19 /8s, 33 /16s and 250 /24s
Percentage of available APNIC address space announced: 79.5
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, 116/6, 120/6, 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: 110131
Total ARIN prefixes after maximum aggregation: 63306
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81258
Unique aggregates announced from the ARIN address blocks: 32204
ARIN Region origin ASes present in the Internet Routing Table: 11879
ARIN Prefixes per ASN: 6.84
ARIN Region origin ASes announcing only one prefix: 4574
ARIN Region transit ASes present in the Internet Routing Table: 1101
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 347076096
Equivalent to 20 /8s, 175 /16s and 246 /24s
Percentage of available ARIN address space announced: 76.6
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 49154
Total RIPE prefixes after maximum aggregation: 31446
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45538
Unique aggregates announced from the RIPE address blocks: 30133
RIPE Region origin ASes present in the Internet Routing Table: 10314
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5476
RIPE Region transit ASes present in the Internet Routing Table: 1633
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 330143616
Equivalent to 19 /8s, 173 /16s and 151 /24s
Percentage of available RIPE address space announced: 75.7
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17131
Total LACNIC prefixes after maximum aggregation: 4565
LACNIC Deaggregation factor: 3.75
Prefixes being announced from the LACNIC address blocks: 15216
Unique aggregates announced from the LACNIC address blocks: 8448
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 17.47
LACNIC Region origin ASes announcing only one prefix: 279
LACNIC Region transit ASes present in the Internet Routing Table: 147
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44022784
Equivalent to 2 /8s, 159 /16s and 188 /24s
Percentage of available LACNIC address space announced: 43.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2643
Total AfriNIC prefixes after maximum aggregation: 1042
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 2298
Unique aggregates announced from the AfriNIC address blocks: 1375
AfriNIC Region origin ASes present in the Internet Routing Table: 208
AfriNIC Prefixes per ASN: 11.05
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7533824
Equivalent to 0 /8s, 114 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 22.5
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
4755 1439 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1122 81 421 Sify Limited
4134 1097 11500 298 CHINANET-BACKBONE
9498 1006 533 67 BHARTI BT INTERNET LTD.
17488 824 53 65 Hathway IP Over Cable Interne
4766 811 5442 321 Korea Telecom (KIX)
23577 796 34 688 Korea Telecom (ATM-MPLS)
7545 735 159 120 TPG Internet Pty Ltd
18101 603 119 50 Reliance Infocom Ltd Internet
4802 574 132 145 Wantree Development
4812 548 974 94 China Telecom (Shanghai)
1221 540 1950 420 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4668 518 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 492 792 119 CNCGROUP IP network: China169
9443 465 122 76 Primus Telecommunications
7474 380 218 267 SingTel Optus Pty Ltd
17557 367 57 191 Pakistan Telecom
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1473 6146 987 AT&T WorldNet Services
4323 1404 1007 363 Time Warner Telecom
2386 1231 636 742 AT&T Data Communications Serv
11492 1158 114 14 Cable One
6478 1126 329 142 AT&T Worldnet Services
6197 1031 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 968 6779 844 Cogent Communications
7011 956 289 554 Citizens Utilities
701 874 6573 680 UUNET Technologies, Inc.
20115 819 749 449 Charter Communications
1239 802 2728 561 Sprint
22773 792 2133 54 Cox Communications, Inc.
19262 784 2830 182 Verizon Global Networks
209 740 3826 585 Qwest
3356 680 10820 370 Level 3 Communications, LLC
5668 653 176 23 CenturyTel Internet Holdings,
6517 587 165 36 Yipes Communications, Inc.
15270 582 161 39 PaeTec.net -a division of Pae
852 581 1093 358 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 474 1920 387 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 349 168 27 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 314 6035 261 Deutsche Telekom AG
8551 294 282 45 Bezeq International
6746 293 131 269 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8708 263 421 241 Romania Data Systems S.A.
8866 263 62 22 Bulgarian Telecommunication C
3215 262 2480 100 France Telecom Transpac
8220 256 444 238 COLT Telecommunications
3352 231 1898 40 Ibernet, Internet Access Netw
3269 223 2839 73 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 197 172 96 AUCS Communications Services
3292 195 1380 177 TDC Tele Danmark
1257 194 1195 171 SWIPnet Swedish IP Network
12479 194 578 6 Uni2 Autonomous System
3246 189 252 179 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1053 2196 213 UniNet S.A. de C.V.
11830 490 291 54 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 379 114 60 Servicios Alestra S.A de C.V
14522 348 30 6 SatNet S.A.
7303 347 168 45 Telecom Argentina Stet-France
6471 343 75 35 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 283 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
10620 253 70 27 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 229 178 24 Telefonica Del Peru
6503 210 170 82 AVANTEL, S.A.
23216 208 17 45 RAMtelecom Telecomunicaciones
28573 182 301 23 NET Servicos de Comunicao S.A
8163 181 11 7 METROTEL REDES S.A.
7738 179 538 24 Telecomunicacoes da Bahia S.A
20299 179 25 29 NEWCOM AMERICAS
19169 178 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 885 226 The Internet Solution
8452 210 188 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
33783 64 8 16 EEPAD TISP TELECOM & INTERNET
15706 55 12 4 Sudatel Internet Exchange Aut
5713 46 294 36 Telkom SA Ltd
33774 45 28 26 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 27 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
15804 24 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1439 1372 Videsh Sanchar Nigam Ltd. Aut
11492 1158 1144 Cable One
4323 1404 1041 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1126 984 AT&T Worldnet Services
9498 1006 939 BHARTI BT INTERNET LTD.
8151 1053 840 UniNet S.A. de C.V.
4134 1097 799 CHINANET-BACKBONE
17488 824 759 Hathway IP Over Cable Interne
22773 792 738 Cox Communications, Inc.
9583 1122 701 Sify Limited
5668 653 630 CenturyTel Internet Holdings,
7545 735 615 TPG Internet Pty Ltd
19262 784 602 Verizon Global Networks
18101 603 553 Reliance Infocom Ltd Internet
6517 587 551 Yipes Communications, Inc.
15270 582 543 PaeTec.net -a division of Pae
6197 1031 523 BellSouth Network Solutions,
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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
172.11.12.0/24 1803 SPRINT
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /8:19 /9:9 /10:16 /11:37 /12:135
/13:265 /14:475 /15:937 /16:9658 /17:4095 /18:6664
/19:14280 /20:16522 /21:15307 /22:19593 /23:20492 /24:123011
/25:770 /26:1024 /27:547 /28:91 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1150 1158 Cable One
6478 1125 1126 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 964 1122 Sify Limited
2386 919 1231 AT&T Data Communications Serv
7011 843 956 Citizens Utilities
7018 811 1473 AT&T WorldNet Services
4755 808 1439 Videsh Sanchar Nigam Ltd. Aut
23577 787 796 Korea Telecom (ATM-MPLS)
6197 775 1031 BellSouth Network Solutions,
9498 690 1006 BHARTI BT INTERNET LTD.
17488 643 824 Hathway IP Over Cable Interne
4766 609 811 Korea Telecom (KIX)
4323 596 1404 Time Warner Telecom
19916 563 568 OLM LLC
15270 545 582 PaeTec.net -a division of Pae
6517 542 587 Yipes Communications, Inc.
5668 515 653 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 505 603 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:90 12:1792 15:20 16:3 17:4
18:13 20:36 24:979 25:1 32:60 33:3
38:352 40:61 41:326 44:2 47:4 52:4
55:3 56:3 57:23 58:467 59:414 60:375
61:993 62:905 63:1988 64:3230 65:2364 66:3546
67:829 68:677 69:1982 70:460 71:107 72:1414
73:5 74:703 75:260 76:139 77:371 78:217
80:847 81:783 82:530 83:365 84:628 85:834
86:346 87:574 88:285 89:1008 90:37 91:604
97:6 98:4 101:1 116:376 117:198 118:39
121:313 122:616 123:202 124:688 125:1028 128:273
129:201 130:138 131:361 132:55 133:9 134:195
135:34 136:188 137:83 138:156 139:74 140:514
141:174 142:371 143:255 144:316 145:46 146:335
147:125 148:433 149:186 150:113 151:156 152:89
153:121 154:11 155:257 156:161 157:221 158:160
159:200 160:136 161:98 162:173 163:182 164:492
165:396 166:291 167:303 168:495 169:124 170:399
171:22 172:3 189:94 190:1116 192:5711 193:3974
194:3207 195:2482 196:961 198:3804 199:3231 200:5228
201:1226 202:7383 203:7892 204:3947 205:2021 206:2423
207:2796 208:2888 209:3477 210:2458 211:1087 212:1308
213:1495 214:419 215:45 216:4075 217:1201 218:320
219:382 220:1013 221:414 222:263
End of report
