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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 30 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/30/0400
Analysis Summary
----------------
BGP routing table entries examined: 226486
Prefixes after maximum aggregation: 119138
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110162
Total ASes present in the Internet Routing Table: 25796
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22495
Origin ASes announcing only one prefix: 10973
Transit ASes present in the Internet Routing Table: 3301
Transit-only ASes present in the Internet Routing Table: 75
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: 50
Unregistered ASNs in the Routing Table: 49
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: 13
Number of addresses announced to Internet: 1741305696
Equivalent to 103 /8s, 202 /16s and 55 /24s
Percentage of available address space announced: 47.0
Percentage of allocated address space announced: 62.3
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 119283
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53164
Total APNIC prefixes after maximum aggregation: 20698
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50105
Unique aggregates announced from the APNIC address blocks: 21975
APNIC Region origin ASes present in the Internet Routing Table: 3025
APNIC Prefixes per ASN: 16.56
APNIC Region origin ASes announcing only one prefix: 815
APNIC Region transit ASes present in the Internet Routing Table: 458
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 305604256
Equivalent to 18 /8s, 55 /16s and 38 /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: 107539
Total ARIN prefixes after maximum aggregation: 62501
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79145
Unique aggregates announced from the ARIN address blocks: 31472
ARIN Region origin ASes present in the Internet Routing Table: 11712
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4527
ARIN Region transit ASes present in the Internet Routing Table: 1069
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341067008
Equivalent to 20 /8s, 84 /16s and 69 /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: 47564
Total RIPE prefixes after maximum aggregation: 30577
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43904
Unique aggregates announced from the RIPE address blocks: 28957
RIPE Region origin ASes present in the Internet Routing Table: 9951
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5297
RIPE Region transit ASes present in the Internet Routing Table: 1564
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 322935424
Equivalent to 19 /8s, 63 /16s and 154 /24s
Percentage of available RIPE address space announced: 80.2
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, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15627
Total LACNIC prefixes after maximum aggregation: 4315
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13692
Unique aggregates announced from the LACNIC address blocks: 7737
LACNIC Region origin ASes present in the Internet Routing Table: 832
LACNIC Prefixes per ASN: 16.46
LACNIC Region origin ASes announcing only one prefix: 272
LACNIC Region transit ASes present in the Internet Routing Table: 138
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40928512
Equivalent to 2 /8s, 112 /16s and 133 /24s
Percentage of available LACNIC address space announced: 61.0
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: 2581
Total AfriNIC prefixes after maximum aggregation: 1037
AfriNIC Deaggregation factor: 2.49
Prefixes being announced from the AfriNIC address blocks: 2128
Unique aggregates announced from the AfriNIC address blocks: 1284
AfriNIC Region origin ASes present in the Internet Routing Table: 200
AfriNIC Prefixes per ASN: 10.64
AfriNIC Region origin ASes announcing only one prefix: 62
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6368256
Equivalent to 0 /8s, 97 /16s and 44 /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 1304 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1123 80 398 Sify Limited
9498 1003 533 70 BHARTI BT INTERNET LTD.
4766 794 4930 316 Korea Telecom (KIX)
23577 788 34 685 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 698 150 112 TPG Internet Pty Ltd
18101 578 117 41 Reliance Infocom Ltd Internet
1221 546 1951 424 Telstra Pty Ltd
4812 529 915 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 471 122 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 411 218 265 SingTel Optus Pty Ltd
4808 376 670 127 CNCGROUP IP network: China169
9829 362 258 14 BSNL National Internet Backbo
17974 362 130 13 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 1464 6073 992 AT&T WorldNet Services
4323 1324 1021 375 Time Warner Telecom
2386 1214 633 753 AT&T Data Communications Serv
6478 1119 319 133 AT&T Worldnet Services
11492 1107 108 20 Cable One
6197 1024 717 508 BellSouth Network Solutions,
18566 1016 288 9 Covad Communications
174 964 6778 851 Cogent Communications
701 942 6562 719 UUNET Technologies, Inc.
7011 901 258 545 Citizens Utilities
1239 813 2742 584 Sprint
20115 796 735 435 Charter Communications
19262 765 2761 189 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
6517 568 159 36 Yipes Communications, Inc.
7029 568 488 79 Alltel Information Services,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 359 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 895 1958 207 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.
6471 312 75 32 ENTEL CHILE S.A.
7303 309 149 38 Telecom Argentina Stet-France
14117 279 19 15 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
10620 213 60 18 TVCABLE BOGOTA
6503 206 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
8163 176 11 9 METROTEL REDES S.A.
7738 159 506 23 Telecomunicacoes da Bahia S.A
7910 157 11 29 ANDINET ON LINE
20299 157 23 13 NEWCOM AMERICAS
21826 157 27 60 INTERCABLE
14522 156 28 9 SatNet S.A.
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
15475 76 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
24835 66 48 6 RAYA Telecom - Egypt
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 45 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 35 2 6 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 1304 1233 Videsh Sanchar Nigam Ltd. Aut
11492 1107 1087 Cable One
4134 1364 1076 CHINANET-BACKBONE
18566 1016 1007 Covad Communications
6478 1119 986 AT&T Worldnet Services
4323 1324 949 Time Warner Telecom
9498 1003 933 BHARTI BT INTERNET LTD.
9583 1123 725 Sify Limited
22773 748 699 Cox Communications, Inc.
8151 895 688 UniNet S.A. de C.V.
17488 738 680 Hathway IP Over Cable Interne
5668 619 598 CenturyTel Internet Holdings,
7545 698 586 TPG Internet Pty Ltd
19262 765 576 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
19916 568 517 OLM LLC
6197 1024 516 BellSouth Network Solutions,
855 575 502 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
34074 UNALLOCATED 77.77.152.0/24 8390 Global One Communica
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
42883 UNALLOCATED 91.193.204.0/22 6849 JSC UKRTELECOM,
42976 UNALLOCATED 91.194.4.0/24 8551 Bezeq International
43050 UNALLOCATED 91.194.50.0/23 24995 MIK ISP, Kiev, Ukrai
43103 UNALLOCATED 91.194.72.0/23 21219 Datacom Autonomous S
43144 UNALLOCATED 91.194.106.0/23 12831 TASK, PL-GDANSK
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
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
42512 UNALLOCATED 193.110.76.0/22 13121 Navigator Online ISP
43028 UNALLOCATED 193.200.201.0/24 21016 LVRTC Autonomous Sys
43034 UNALLOCATED 193.200.207.0/24 9119 Softnet
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
42591 UNALLOCATED 195.34.68.0/24 25233 Awalnet
65161 PRIVATE 195.47.199.0/24 28929 Tiziano D'Inca' - AS
39094 UNALLOCATED 195.66.64.0/24 12578 LATTELEKOM-APOLLO
65001 PRIVATE 195.250.120.0/23 8534 InfoSky - Informatik
65535 PRIVATE 200.62.98.0/24 7137 TELEMATIX/ ENITEL
65501 PRIVATE 202.153.21.0/24 23666 PT Sistelindo Mitral
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
95.192.0.0/16 12654 RIPE NCC RIS Project
95.255.248.0/21 12654 RIPE NCC RIS Project
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 /16:9560 /17:4023 /18:6521
/19:13798 /20:16061 /21:14567 /22:18904 /23:19858 /24:119046
/25:751 /26:999 /27:480 /28:73 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1118 1119 AT&T Worldnet Services
11492 1098 1107 Cable One
18566 998 1016 Covad Communications
9583 965 1123 Sify Limited
2386 908 1214 AT&T Data Communications Serv
7011 799 901 Citizens Utilities
7018 799 1464 AT&T WorldNet Services
23577 779 788 Korea Telecom (ATM-MPLS)
6197 778 1024 BellSouth Network Solutions,
4755 697 1304 Videsh Sanchar Nigam Ltd. Aut
9498 673 1003 BHARTI BT INTERNET LTD.
4766 593 794 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 555 1324 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 8:83 9:1 12:1812 15:19
16:3 17:3 18:12 20:37 24:927 25:1
32:50 33:3 38:336 40:60 41:221 44:2
47:4 52:4 55:3 56:3 57:25 58:466
59:381 60:345 61:992 62:890 63:1981 64:3138
65:2372 66:3310 67:747 68:625 69:1921 70:441
71:102 72:1364 73:2 74:586 75:254 76:81
77:260 78:22 80:823 81:823 82:657 83:374
84:538 85:856 86:343 87:455 88:277 89:946
90:12 91:433 97:6 98:3 116:255 117:82
121:250 122:586 123:132 124:879 125:962 128:290
129:212 130:140 131:363 132:54 133:9 134:193
135:38 136:177 137:81 138:156 139:71 140:493
141:172 142:377 143:251 144:290 145:45 146:326
147:121 148:401 149:141 150:112 151:160 152:85
153:122 154:2 155:257 156:157 157:213 158:158
159:170 160:105 161:94 162:209 163:181 164:466
165:394 166:286 167:294 168:507 169:119 170:410
171:23 172:1 189:64 190:759 192:5744 193:3928
194:3173 195:2235 196:961 198:3797 199:3283 200:4964
201:1107 202:7404 203:7543 204:3938 205:2008 206:2417
207:2812 208:2738 209:3487 210:2424 211:965 212:1278
213:1485 214:413 215:40 216:3964 217:1162 218:358
219:386 220:1014 221:413 222:266
End of report
