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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 17 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/17/0400
Analysis Summary
----------------
BGP routing table entries examined: 234683
Prefixes after maximum aggregation: 121321
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113303
Total ASes present in the Internet Routing Table: 26497
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 23057
Origin ASes announcing only one prefix: 11243
Transit ASes present in the Internet Routing Table: 3440
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
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: 11
Number of addresses announced to Internet: 1792333472
Equivalent to 106 /8s, 212 /16s and 214 /24s
Percentage of available address space announced: 48.4
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 108552
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54906
Total APNIC prefixes after maximum aggregation: 20670
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 51837
Unique aggregates announced from the APNIC address blocks: 21869
APNIC Region origin ASes present in the Internet Routing Table: 3075
APNIC Prefixes per ASN: 16.86
APNIC Region origin ASes announcing only one prefix: 818
APNIC Region transit ASes present in the Internet Routing Table: 473
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 321378784
Equivalent to 19 /8s, 39 /16s and 217 /24s
Percentage of available APNIC address space announced: 79.6
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: 110392
Total ARIN prefixes after maximum aggregation: 63511
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81531
Unique aggregates announced from the ARIN address blocks: 32249
ARIN Region origin ASes present in the Internet Routing Table: 11901
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4575
ARIN Region transit ASes present in the Internet Routing Table: 1105
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 347376768
Equivalent to 20 /8s, 180 /16s and 140 /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: 49378
Total RIPE prefixes after maximum aggregation: 31559
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45837
Unique aggregates announced from the RIPE address blocks: 30253
RIPE Region origin ASes present in the Internet Routing Table: 10358
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5501
RIPE Region transit ASes present in the Internet Routing Table: 1636
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 330979456
Equivalent to 19 /8s, 186 /16s and 88 /24s
Percentage of available RIPE address space announced: 75.9
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: 17246
Total LACNIC prefixes after maximum aggregation: 4530
LACNIC Deaggregation factor: 3.81
Prefixes being announced from the LACNIC address blocks: 15272
Unique aggregates announced from the LACNIC address blocks: 8592
LACNIC Region origin ASes present in the Internet Routing Table: 874
LACNIC Prefixes per ASN: 17.47
LACNIC Region origin ASes announcing only one prefix: 283
LACNIC Region transit ASes present in the Internet Routing Table: 152
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44427008
Equivalent to 2 /8s, 165 /16s and 231 /24s
Percentage of available LACNIC address space announced: 44.1
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: 2732
Total AfriNIC prefixes after maximum aggregation: 1037
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2314
Unique aggregates announced from the AfriNIC address blocks: 1383
AfriNIC Region origin ASes present in the Internet Routing Table: 209
AfriNIC Prefixes per ASN: 11.07
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7607552
Equivalent to 0 /8s, 116 /16s and 21 /24s
Percentage of available AfriNIC address space announced: 22.7
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 1462 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1107 108 18 Sify Limited
4134 1096 11532 299 CHINANET-BACKBONE
9498 1010 550 68 BHARTI BT INTERNET LTD.
17488 839 54 66 Hathway IP Over Cable Interne
4766 811 5442 321 Korea Telecom (KIX)
23577 790 34 683 Korea Telecom (ATM-MPLS)
7545 732 159 119 TPG Internet Pty Ltd
18101 605 119 52 Reliance Infocom Ltd Internet
4802 573 132 144 Wantree Development
1221 537 1950 417 Telstra Pty Ltd
4812 537 906 88 China Telecom (Shanghai)
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 440 121 72 Primus Telecommunications
7474 379 217 266 SingTel Optus Pty Ltd
17557 369 57 189 Pakistan Telecom
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6148 994 AT&T WorldNet Services
4323 1362 1006 362 Time Warner Telecom
2386 1232 628 741 AT&T Data Communications Serv
11492 1157 114 13 Cable One
6478 1125 329 146 AT&T Worldnet Services
6197 1028 718 512 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 973 6786 847 Cogent Communications
7011 960 290 558 Citizens Utilities
701 880 6574 687 UUNET Technologies, Inc.
20115 837 765 447 Charter Communications
1239 804 2720 562 Sprint
22773 795 2133 54 Cox Communications, Inc.
19262 787 2842 185 Verizon Global Networks
209 744 3809 585 Qwest
3356 687 10821 372 Level 3 Communications, LLC
5668 660 176 17 CenturyTel Internet Holdings,
6517 588 165 36 Yipes Communications, Inc.
852 581 1093 358 Telus Advanced Communications
6198 568 613 259 BellSouth Network Solutions,
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 344 168 27 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
8551 296 284 38 Bezeq International
6746 279 129 255 Dynamic Network Technologies,
8708 270 421 242 Romania Data Systems S.A.
680 269 2045 257 DFN-IP service G-WiN
8866 265 62 24 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 226 2903 74 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 198 172 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 189 253 179 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1054 2196 213 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 432 27 10 NSS, S.A.
11172 380 114 60 Servicios Alestra S.A de C.V
7303 353 170 49 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 256 71 27 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 230 178 24 Telefonica Del Peru
23216 209 17 45 RAMtelecom Telecomunicaciones
6503 208 170 82 AVANTEL, S.A.
7738 193 538 24 Telecomunicacoes da Bahia S.A
28573 188 301 23 NET Servicos de Comunicao S.A
8163 183 11 8 METROTEL REDES S.A.
21826 181 32 50 INTERCABLE
20299 180 25 30 NEWCOM AMERICAS
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 885 226 The Internet Solution
8452 218 188 7 TEDATA
6713 146 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 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 26 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1462 1395 Videsh Sanchar Nigam Ltd. Aut
11492 1157 1144 Cable One
9583 1107 1089 Sify Limited
18566 1028 1019 Covad Communications
4323 1362 1000 Time Warner Telecom
6478 1125 979 AT&T Worldnet Services
9498 1010 942 BHARTI BT INTERNET LTD.
8151 1054 841 UniNet S.A. de C.V.
4134 1096 797 CHINANET-BACKBONE
17488 839 773 Hathway IP Over Cable Interne
22773 795 741 Cox Communications, Inc.
5668 660 643 CenturyTel Internet Holdings,
7545 732 613 TPG Internet Pty Ltd
19262 787 602 Verizon Global Networks
18101 605 553 Reliance Infocom Ltd Internet
6517 588 552 Yipes Communications, Inc.
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
6197 1028 516 BellSouth Network Solutions,
4668 518 508 LG-EDS Systems Inc.
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
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 /15:939 /16:9670 /17:4112 /18:6688
/19:14354 /20:16556 /21:15368 /22:19677 /23:20574 /24:123325
/25:797 /26:1021 /27:541 /28:91 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1149 1157 Cable One
6478 1124 1125 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 940 1107 Sify Limited
2386 922 1232 AT&T Data Communications Serv
7011 847 960 Citizens Utilities
4755 833 1462 Videsh Sanchar Nigam Ltd. Aut
7018 814 1481 AT&T WorldNet Services
23577 781 790 Korea Telecom (ATM-MPLS)
6197 772 1028 BellSouth Network Solutions,
9498 692 1010 BHARTI BT INTERNET LTD.
17488 658 839 Hathway IP Over Cable Interne
4766 609 811 Korea Telecom (KIX)
4323 580 1362 Time Warner Telecom
19916 563 568 OLM LLC
6517 543 588 Yipes Communications, Inc.
5668 520 660 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 506 605 Reliance Infocom Ltd Internet
15270 479 514 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:87 12:1794 15:19 16:3 17:5
18:13 20:36 24:980 25:1 32:60 33:3
38:355 40:64 41:327 44:2 47:8 52:3
55:3 56:3 57:23 58:467 59:415 60:379
61:985 62:927 63:1988 64:3269 65:2379 66:3544
67:830 68:677 69:2004 70:464 71:108 72:1418
73:6 74:716 75:260 76:145 77:395 78:244
80:850 81:799 82:581 83:361 84:621 85:834
86:349 87:570 88:289 89:1021 90:37 91:635
96:1 97:6 98:4 116:391 117:198 118:39
121:320 122:613 123:202 124:665 125:1035 128:275
129:195 130:137 131:368 132:55 133:9 134:193
135:34 136:188 137:83 138:156 139:74 140:511
141:150 142:371 143:254 144:315 145:46 146:335
147:130 148:483 149:186 150:112 151:137 152:89
153:121 154:11 155:261 156:161 157:220 158:160
159:197 160:136 161:98 162:180 163:182 164:495
165:397 166:291 167:305 168:495 169:125 170:400
171:22 172:3 189:94 190:1123 192:5723 193:3984
194:3220 195:2482 196:961 198:3798 199:3235 200:5211
201:1229 202:7395 203:7904 204:3958 205:2008 206:2424
207:2802 208:2894 209:3480 210:2442 211:1076 212:1271
213:1498 214:419 215:45 216:4085 217:1198 218:315
219:383 220:1002 221:419 222:263
End of report
