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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 31 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/31/0400
Analysis Summary
----------------
BGP routing table entries examined: 226622
Prefixes after maximum aggregation: 119419
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110246
Total ASes present in the Internet Routing Table: 25811
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22501
Origin ASes announcing only one prefix: 10975
Transit ASes present in the Internet Routing Table: 3310
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 43
Unregistered ASNs in the Routing Table: 40
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1741525088
Equivalent to 103 /8s, 205 /16s and 144 /24s
Percentage of available address space announced: 47.0
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 119396
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53141
Total APNIC prefixes after maximum aggregation: 20699
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50077
Unique aggregates announced from the APNIC address blocks: 21990
APNIC Region origin ASes present in the Internet Routing Table: 3020
APNIC Prefixes per ASN: 16.58
APNIC Region origin ASes announcing only one prefix: 811
APNIC Region transit ASes present in the Internet Routing Table: 455
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 305613984
Equivalent to 18 /8s, 55 /16s and 76 /24s
Percentage of available APNIC address space announced: 75.7
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: 107570
Total ARIN prefixes after maximum aggregation: 62506
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79168
Unique aggregates announced from the ARIN address blocks: 31492
ARIN Region origin ASes present in the Internet Routing Table: 11716
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4530
ARIN Region transit ASes present in the Internet Routing Table: 1071
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341123840
Equivalent to 20 /8s, 85 /16s and 35 /24s
Percentage of available ARIN address space announced: 75.3
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: 47622
Total RIPE prefixes after maximum aggregation: 30858
RIPE Deaggregation factor: 1.54
Prefixes being announced from the RIPE address blocks: 43968
Unique aggregates announced from the RIPE address blocks: 28996
RIPE Region origin ASes present in the Internet Routing Table: 9963
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5301
RIPE Region transit ASes present in the Internet Routing Table: 1570
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 323065216
Equivalent to 19 /8s, 65 /16s and 149 /24s
Percentage of available RIPE address space announced: 74.1
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
40960-44031
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: 15682
Total LACNIC prefixes after maximum aggregation: 4307
LACNIC Deaggregation factor: 3.64
Prefixes being announced from the LACNIC address blocks: 13726
Unique aggregates announced from the LACNIC address blocks: 7739
LACNIC Region origin ASes present in the Internet Routing Table: 835
LACNIC Prefixes per ASN: 16.44
LACNIC Region origin ASes announcing only one prefix: 272
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41018112
Equivalent to 2 /8s, 113 /16s and 227 /24s
Percentage of available LACNIC address space announced: 61.1
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: 2600
Total AfriNIC prefixes after maximum aggregation: 1039
AfriNIC Deaggregation factor: 2.50
Prefixes being announced from the AfriNIC address blocks: 2140
Unique aggregates announced from the AfriNIC address blocks: 1288
AfriNIC Region origin ASes present in the Internet Routing Table: 199
AfriNIC Prefixes per ASN: 10.75
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6368768
Equivalent to 0 /8s, 97 /16s and 46 /24s
Percentage of available AfriNIC address space announced: 19.0
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 1364 10954 288 CHINANET-BACKBONE
4755 1309 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1122 80 397 Sify Limited
9498 1003 533 70 BHARTI BT INTERNET LTD.
4766 796 4930 316 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 699 150 113 TPG Internet Pty Ltd
18101 578 117 41 Reliance Infocom Ltd Internet
1221 546 1951 424 Telstra Pty Ltd
4812 530 915 96 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 471 122 77 Primus Telecommunications
7474 416 218 269 SingTel Optus Pty Ltd
4802 410 105 150 Wantree Development
4808 381 668 128 CNCGROUP IP network: China169
9829 362 258 14 BSNL National Internet Backbo
17974 359 127 11 PT TELEKOMUNIKASI INDONESIA
4837 352 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1466 6073 992 AT&T WorldNet Services
4323 1323 1021 375 Time Warner Telecom
2386 1208 633 752 AT&T Data Communications Serv
6478 1121 319 135 AT&T Worldnet Services
11492 1107 108 20 Cable One
6197 1025 717 508 BellSouth Network Solutions,
18566 1016 288 9 Covad Communications
174 966 6778 853 Cogent Communications
701 941 6562 718 UUNET Technologies, Inc.
7011 897 257 546 Citizens Utilities
1239 814 2742 582 Sprint
20115 804 737 430 Charter Communications
19262 766 2762 185 Verizon Global Networks
209 750 3877 595 Qwest
22773 748 2148 49 Cox Communications, Inc.
5668 619 169 21 CenturyTel Internet Holdings,
855 575 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
7029 569 488 79 Alltel Information Services,
6517 568 159 36 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 509 918 381 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 361 56 41 LINKdotNET AS number
9116 322 168 25 Goldenlines main autonomous s
3301 312 1456 292 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 285 129 261 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 264 2044 255 DFN-IP service G-WiN
8220 259 445 242 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 251 420 240 Romania Data Systems S.A.
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
8551 215 212 27 Bezeq International
9121 210 1441 24 TTnet Autonomous System
3292 194 1379 174 TDC Tele Danmark
1257 193 1195 171 SWIPnet Swedish IP Network
12479 191 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 892 1958 205 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 373 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
7303 313 149 38 Telecom Argentina Stet-France
6471 312 75 32 ENTEL CHILE S.A.
14117 279 19 15 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
10620 214 60 18 TVCABLE BOGOTA
6503 207 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 177 28 7 SatNet S.A.
8163 176 11 9 METROTEL REDES S.A.
7738 159 506 23 Telecomunicacoes da Bahia S.A
7910 158 11 28 ANDINET ON LINE
20299 157 23 13 NEWCOM AMERICAS
21826 157 27 60 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 125 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
24835 89 48 6 RAYA Telecom - Egypt
15475 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 46 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 36 2 7 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 31 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1309 1238 Videsh Sanchar Nigam Ltd. Aut
11492 1107 1087 Cable One
4134 1364 1076 CHINANET-BACKBONE
18566 1016 1007 Covad Communications
6478 1121 986 AT&T Worldnet Services
4323 1323 948 Time Warner Telecom
9498 1003 933 BHARTI BT INTERNET LTD.
9583 1122 725 Sify Limited
22773 748 699 Cox Communications, Inc.
8151 892 687 UniNet S.A. de C.V.
17488 738 680 Hathway IP Over Cable Interne
5668 619 598 CenturyTel Internet Holdings,
7545 699 586 TPG Internet Pty Ltd
19262 766 581 Verizon Global Networks
18101 578 537 Reliance Infocom Ltd Internet
6517 568 532 Yipes Communications, Inc.
15270 562 525 PaeTec.net -a division of Pae
6197 1025 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 575 502 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43346 UNALLOCATED 77.87.168.0/21 28906 CJSC "TransTelecom-N
43087 UNALLOCATED 77.95.88.0/21 12389 JSC Rostelecom
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
42864 UNALLOCATED 77.242.144.0/20 8928 Interoute Telecommun
43082 UNALLOCATED 77.246.160.0/20 174 Cogent Communication
43345 UNALLOCATED 78.40.40.0/24 702 UUNET - Commercial I
43328 UNALLOCATED 78.40.112.0/21 21448 Crosswired Mancheste
43391 UNALLOCATED 78.40.224.0/21 9121 TTnet Autonomous Sys
43203 UNALLOCATED 78.108.152.0/22 2819 KPNQwest Czechia AS
43314 UNALLOCATED 78.109.128.0/20 21127 JSC Zap-Sib TransTel
39389 UNALLOCATED 80.67.165.0/24 20766 The main Autonomous
43157 UNALLOCATED 83.143.224.0/21 174 Cogent Communication
24982 UNALLOCATED 85.112.68.0/24 39010 TerraNet sal
43378 UNALLOCATED 89.45.176.0/20 5606 KPNQwest Romania AS
43286 UNALLOCATED 91.149.120.0/22 3216 Teleross, Moscow, Ru
42976 UNALLOCATED 91.194.4.0/24 8551 Bezeq International
39389 UNALLOCATED 91.194.60.0/23 20766 The main Autonomous
43103 UNALLOCATED 91.194.72.0/23 21219 Datacom Autonomous S
43290 UNALLOCATED 91.194.198.0/23 20751 max4eu.net InterNet-
43376 UNALLOCATED 91.194.234.0/23 2914 Verio, Inc.
43067 UNALLOCATED 91.196.80.0/22 31305 Kriviy Rih City netw
43103 UNALLOCATED 91.196.92.0/22 21219 Datacom Autonomous S
43319 UNALLOCATED 91.197.8.0/22 12452 VSTN AS
43348 UNALLOCATED 91.197.24.0/22 29632 The NetAssist autono
43359 UNALLOCATED 91.197.36.0/22 25441 Irish Broadband Inte
43164 UNALLOCATED 91.198.0.0/24 16016 VOLJATEL Autonomous
43194 UNALLOCATED 91.198.5.0/24 5486 Euronet Digital Comm
43187 UNALLOCATED 91.198.7.0/24 3340 DataNet Telecommunic
43212 UNALLOCATED 91.198.19.0/24 21294 SC Idilis S.A.
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
43028 UNALLOCATED 193.200.201.0/24 21016 LVRTC Autonomous Sys
43034 UNALLOCATED 193.200.207.0/24 9119 Softnet
43360 UNALLOCATED 193.228.153.0/24 6663 InterComp Bucharest
35396 UNALLOCATED 193.247.0.0/19 6830 UPC Distribution Ser
43122 UNALLOCATED 194.110.128.0/24 8220 COLT Telecommunicati
42752 UNALLOCATED 194.110.150.0/24 9121 TTnet Autonomous Sys
42795 UNALLOCATED 194.110.245.0/24 174 Cogent Communication
41431 UNALLOCATED 194.246.85.0/24 12843 TelemaxX Autonomous
39094 UNALLOCATED 195.66.64.0/24 12578 LATTELEKOM-APOLLO
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64516 PRIVATE 209.43.37.0/24 7332 IQuest Internet
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
172.33.1.0/24 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 /8:18 /9:9 /10:15 /11:36 /12:130
/13:255 /14:468 /15:901 /16:9563 /17:4023 /18:6531
/19:13807 /20:16077 /21:14584 /22:18907 /23:19869 /24:119113
/25:750 /26:1000 /27:479 /28:74 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1120 1121 AT&T Worldnet Services
11492 1098 1107 Cable One
18566 998 1016 Covad Communications
9583 964 1122 Sify Limited
2386 903 1208 AT&T Data Communications Serv
7018 800 1466 AT&T WorldNet Services
7011 795 897 Citizens Utilities
6197 779 1025 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 701 1309 Videsh Sanchar Nigam Ltd. Aut
9498 673 1003 BHARTI BT INTERNET LTD.
4766 595 796 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 555 1323 Time Warner Telecom
6517 534 568 Yipes Communications, Inc.
15270 527 562 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 490 578 Reliance Infocom Ltd Internet
5668 484 619 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:82 9:1 12:1807 15:19
16:3 17:3 18:12 20:37 24:927 25:1
32:50 33:3 38:336 40:60 41:224 44:2
47:4 52:4 55:3 56:3 57:25 58:466
59:381 60:345 61:992 62:891 63:1982 64:3139
65:2372 66:3309 67:747 68:625 69:1917 70:441
71:102 72:1365 73:2 74:586 75:254 76:81
77:260 78:23 80:824 81:821 82:659 83:374
84:540 85:858 86:343 87:456 88:279 89:954
90:12 91:435 97:6 98:3 116:255 117:87
121:252 122:586 123:137 124:882 125:962 128:288
129:212 130:138 131:363 132:52 133:9 134:193
135:38 136:188 137:81 138:149 139:71 140:493
141:172 142:377 143:254 144:290 145:45 146:326
147:121 148:403 149:142 150:112 151:160 152:90
153:122 154:2 155:257 156:157 157:213 158:158
159:171 160:106 161:94 162:210 163:181 164:469
165:401 166:286 167:294 168:507 169:120 170:412
171:23 172:1 189:64 190:755 192:5738 193:3935
194:3169 195:2239 196:960 198:3797 199:3277 200:4975
201:1114 202:7377 203:7559 204:3939 205:2004 206:2419
207:2807 208:2745 209:3490 210:2426 211:965 212:1278
213:1487 214:416 215:40 216:3969 217:1163 218:357
219:386 220:1014 221:412 222:266
End of report
