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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 11 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/11/0400
Analysis Summary
----------------
BGP routing table entries examined: 234218
Prefixes after maximum aggregation: 121391
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 114126
Total ASes present in the Internet Routing Table: 26435
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 23016
Origin ASes announcing only one prefix: 11215
Transit ASes present in the Internet Routing Table: 3419
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 22
Unregistered ASNs in the Routing Table: 6
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: 1790948256
Equivalent to 106 /8s, 191 /16s and 179 /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: 108238
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54860
Total APNIC prefixes after maximum aggregation: 21038
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 51787
Unique aggregates announced from the APNIC address blocks: 22935
APNIC Region origin ASes present in the Internet Routing Table: 3068
APNIC Prefixes per ASN: 16.88
APNIC Region origin ASes announcing only one prefix: 813
APNIC Region transit ASes present in the Internet Routing Table: 468
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 321070816
Equivalent to 19 /8s, 35 /16s and 38 /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: 110193
Total ARIN prefixes after maximum aggregation: 63320
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81409
Unique aggregates announced from the ARIN address blocks: 32210
ARIN Region origin ASes present in the Internet Routing Table: 11883
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4574
ARIN Region transit ASes present in the Internet Routing Table: 1103
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 347223936
Equivalent to 20 /8s, 178 /16s and 55 /24s
Percentage of available ARIN address space announced: 76.7
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, 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: 49240
Total RIPE prefixes after maximum aggregation: 31462
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 45690
Unique aggregates announced from the RIPE address blocks: 30166
RIPE Region origin ASes present in the Internet Routing Table: 10323
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5481
RIPE Region transit ASes present in the Internet Routing Table: 1621
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 330181760
Equivalent to 19 /8s, 174 /16s and 44 /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: 17187
Total LACNIC prefixes after maximum aggregation: 4517
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15258
Unique aggregates announced from the LACNIC address blocks: 8571
LACNIC Region origin ASes present in the Internet Routing Table: 872
LACNIC Prefixes per ASN: 17.50
LACNIC Region origin ASes announcing only one prefix: 280
LACNIC Region transit ASes present in the Internet Routing Table: 150
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44233472
Equivalent to 2 /8s, 162 /16s and 243 /24s
Percentage of available LACNIC address space announced: 43.9
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: 2708
Total AfriNIC prefixes after maximum aggregation: 1040
AfriNIC Deaggregation factor: 2.60
Prefixes being announced from the AfriNIC address blocks: 2302
Unique aggregates announced from the AfriNIC address blocks: 1375
AfriNIC Region origin ASes present in the Internet Routing Table: 208
AfriNIC Prefixes per ASN: 11.07
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7537664
Equivalent to 0 /8s, 115 /16s and 4 /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 1121 81 419 Sify Limited
4134 1097 11500 298 CHINANET-BACKBONE
9498 1006 533 67 BHARTI BT INTERNET LTD.
17488 825 54 66 Hathway IP Over Cable Interne
4766 811 5442 321 Korea Telecom (KIX)
23577 794 34 687 Korea Telecom (ATM-MPLS)
7545 735 159 120 TPG Internet Pty Ltd
18101 602 119 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 368 57 188 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 1474 6147 987 AT&T WorldNet Services
4323 1401 1007 363 Time Warner Telecom
2386 1230 628 741 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
174 967 6779 843 Cogent Communications
7011 958 289 555 Citizens Utilities
701 878 6574 684 UUNET Technologies, Inc.
20115 838 765 448 Charter Communications
1239 803 2720 563 Sprint
22773 792 2133 54 Cox Communications, Inc.
19262 786 2840 184 Verizon Global Networks
209 739 3810 584 Qwest
3356 680 10804 370 Level 3 Communications, LLC
5668 653 176 23 CenturyTel Internet Holdings,
6517 587 165 36 Yipes Communications, Inc.
15270 583 161 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
702 472 1919 385 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 352 168 27 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 314 6035 261 Deutsche Telekom AG
8551 296 284 38 Bezeq International
6746 292 131 268 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8708 264 421 242 Romania Data Systems S.A.
8866 263 62 22 Bulgarian Telecommunication C
3215 262 2480 100 France Telecom Transpac
8220 255 444 237 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 1046 2196 213 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
11172 380 114 60 Servicios Alestra S.A de C.V
7303 349 168 46 Telecom Argentina Stet-France
14522 349 30 6 SatNet S.A.
6471 343 75 35 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 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 209 170 82 AVANTEL, S.A.
23216 209 17 45 RAMtelecom Telecomunicaciones
28573 183 301 23 NET Servicos de Comunicao S.A
7738 182 538 24 Telecomunicacoes da Bahia S.A
8163 182 11 8 METROTEL REDES S.A.
20299 180 25 30 NEWCOM AMERICAS
21826 180 32 49 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 885 226 The Internet Solution
8452 214 188 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 125 8 11 EEPAD TISP TELECOM & INTERNET
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
15706 55 12 4 Sudatel Internet Exchange Aut
33774 48 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
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 1401 1038 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1126 984 AT&T Worldnet Services
9498 1006 939 BHARTI BT INTERNET LTD.
8151 1046 833 UniNet S.A. de C.V.
4134 1097 799 CHINANET-BACKBONE
17488 825 759 Hathway IP Over Cable Interne
22773 792 738 Cox Communications, Inc.
9583 1121 702 Sify Limited
5668 653 630 CenturyTel Internet Holdings,
7545 735 615 TPG Internet Pty Ltd
19262 786 602 Verizon Global Networks
18101 602 552 Reliance Infocom Ltd Internet
6517 587 551 Yipes Communications, Inc.
15270 583 544 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
65100 PRIVATE 80.91.113.0/24 35047 Abiss Net Tirana Alb
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 /14:476 /15:934 /16:9658 /17:4097 /18:6686
/19:14308 /20:16548 /21:15331 /22:19623 /23:20527 /24:123102
/25:766 /26:1034 /27:541 /28:93 /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 963 1121 Sify Limited
2386 918 1230 AT&T Data Communications Serv
7011 845 958 Citizens Utilities
7018 812 1474 AT&T WorldNet Services
4755 808 1439 Videsh Sanchar Nigam Ltd. Aut
23577 785 794 Korea Telecom (ATM-MPLS)
6197 775 1031 BellSouth Network Solutions,
9498 690 1006 BHARTI BT INTERNET LTD.
17488 644 825 Hathway IP Over Cable Interne
4766 609 811 Korea Telecom (KIX)
4323 593 1401 Time Warner Telecom
19916 563 568 OLM LLC
15270 546 583 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 504 602 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 24:980 25:1 32:60 33:3
38:354 40:61 41:328 44:2 47:7 52:4
55:3 56:3 57:23 58:466 59:414 60:376
61:978 62:904 63:1989 64:3252 65:2366 66:3542
67:829 68:676 69:1986 70:460 71:107 72:1420
73:5 74:706 75:260 76:138 77:387 78:241
80:848 81:798 82:573 83:366 84:633 85:827
86:346 87:573 88:287 89:1011 90:37 91:609
96:1 97:6 98:4 101:1 116:377 117:197
118:39 121:310 122:615 123:200 124:691 125:1028
128:274 129:201 130:138 131:367 132:54 133:9
134:194 135:34 136:188 137:83 138:156 139:74
140:417 141:174 142:371 143:254 144:316 145:46
146:335 147:125 148:432 149:186 150:113 151:156
152:89 153:121 154:11 155:256 156:161 157:222
158:160 159:200 160:135 161:98 162:173 163:182
164:492 165:397 166:291 167:303 168:496 169:124
170:398 171:22 172:3 189:95 190:1122 192:5714
193:3975 194:3207 195:2484 196:958 198:3797 199:3233
200:5227 201:1230 202:7394 203:7906 204:3951 205:2017
206:2424 207:2804 208:2887 209:3479 210:2459 211:1079
212:1326 213:1495 214:418 215:45 216:4077 217:1203
218:321 219:382 220:1013 221:412 222:263
End of report
