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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 29 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/29/0400
Analysis Summary
----------------
BGP routing table entries examined: 235836
Prefixes after maximum aggregation: 121879
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 113949
Total ASes present in the Internet Routing Table: 26579
Prefixes per ASN: 8.87
Origin-only ASes present in the Internet Routing Table: 23145
Origin ASes announcing only one prefix: 11290
Transit ASes present in the Internet Routing Table: 3434
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: 20
Max AS path prepend of ASN (13227) 16
Prefixes from unregistered ASNs in the Routing Table: 28
Unregistered ASNs in the Routing Table: 10
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: 10
Number of addresses announced to Internet: 1782978176
Equivalent to 106 /8s, 70 /16s and 22 /24s
Percentage of available address space announced: 48.1
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 109456
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55032
Total APNIC prefixes after maximum aggregation: 20720
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 51958
Unique aggregates announced from the APNIC address blocks: 21953
APNIC Region origin ASes present in the Internet Routing Table: 3083
APNIC Prefixes per ASN: 16.85
APNIC Region origin ASes announcing only one prefix: 811
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: 322926784
Equivalent to 19 /8s, 63 /16s and 120 /24s
Percentage of available APNIC address space announced: 80.0
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: 110822
Total ARIN prefixes after maximum aggregation: 63733
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81946
Unique aggregates announced from the ARIN address blocks: 32491
ARIN Region origin ASes present in the Internet Routing Table: 11912
ARIN Prefixes per ASN: 6.88
ARIN Region origin ASes announcing only one prefix: 4589
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: 349482368
Equivalent to 20 /8s, 212 /16s and 173 /24s
Percentage of available ARIN address space announced: 77.2
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: 49734
Total RIPE prefixes after maximum aggregation: 31806
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 46223
Unique aggregates announced from the RIPE address blocks: 30461
RIPE Region origin ASes present in the Internet Routing Table: 10419
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5539
RIPE Region transit ASes present in the Internet Routing Table: 1637
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 334258048
Equivalent to 19 /8s, 236 /16s and 95 /24s
Percentage of available RIPE address space announced: 76.6
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: 17475
Total LACNIC prefixes after maximum aggregation: 4567
LACNIC Deaggregation factor: 3.83
Prefixes being announced from the LACNIC address blocks: 15508
Unique aggregates announced from the LACNIC address blocks: 8625
LACNIC Region origin ASes present in the Internet Routing Table: 873
LACNIC Prefixes per ASN: 17.76
LACNIC Region origin ASes announcing only one prefix: 282
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: 44827136
Equivalent to 2 /8s, 172 /16s and 2 /24s
Percentage of available LACNIC address space announced: 44.5
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: 2737
Total AfriNIC prefixes after maximum aggregation: 1039
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2321
Unique aggregates announced from the AfriNIC address blocks: 1391
AfriNIC Region origin ASes present in the Internet Routing Table: 212
AfriNIC Prefixes per ASN: 10.95
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7623424
Equivalent to 0 /8s, 116 /16s and 83 /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 1472 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1118 108 15 Sify Limited
4134 1098 11539 299 CHINANET-BACKBONE
9498 1014 550 68 BHARTI BT INTERNET LTD.
17488 855 55 67 Hathway IP Over Cable Interne
4766 815 5473 327 Korea Telecom (KIX)
23577 780 34 681 Korea Telecom (ATM-MPLS)
7545 716 159 118 TPG Internet Pty Ltd
18101 606 119 51 Reliance Infocom Ltd Internet
1221 542 1950 422 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 523 858 76 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 498 793 119 CNCGROUP IP network: China169
4802 486 133 140 Wantree Development
9443 441 121 72 Primus Telecommunications
7474 374 201 261 SingTel Optus Pty Ltd
17974 365 142 16 PT TELEKOMUNIKASI INDONESIA
4837 357 5057 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6146 1004 AT&T WorldNet Services
4323 1346 1009 357 Time Warner Telecom
2386 1241 629 752 AT&T Data Communications Serv
11492 1156 117 39 Cable One
6478 1115 328 197 AT&T Worldnet Services
6197 1029 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 993 6803 847 Cogent Communications
7011 967 289 558 Citizens Utilities
701 886 6560 694 UUNET Technologies, Inc.
20115 849 774 458 Charter Communications
22773 800 2133 54 Cox Communications, Inc.
1239 795 2721 556 Sprint
19262 792 2853 183 Verizon Global Networks
3356 764 10891 398 Level 3 Communications, LLC
209 730 3784 573 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
3561 591 2325 377 Savvis
6517 587 163 34 Yipes Communications, Inc.
1785 585 395 247 AppliedTheory Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 472 1919 385 UUNET - Commercial IP service
24863 375 58 39 LINKdotNET AS number
9116 334 168 28 Goldenlines main autonomous s
3301 317 1441 294 TeliaNet Sweden
3320 316 6035 263 Deutsche Telekom AG
8551 311 298 41 Bezeq International
6746 275 129 252 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
8866 269 62 25 Bulgarian Telecommunication C
680 266 2045 254 DFN-IP service G-WiN
3215 264 2504 99 France Telecom Transpac
8220 257 445 238 COLT Telecommunications
3352 232 1916 40 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 199 172 95 AUCS Communications Services
20858 195 34 3 EgyNet
1257 194 1194 176 SWIPnet Swedish IP Network
12479 194 578 6 Uni2 Autonomous System
3246 193 257 183 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1053 2196 214 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 380 32 7 SatNet S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 362 175 53 Telecom Argentina Stet-France
6471 348 75 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 265 73 27 TVCABLE BOGOTA
10481 261 104 9 Prima S.A.
6147 236 182 20 Telefonica Del Peru
11556 235 128 3 Cable-Wireless Panama
6503 213 187 84 AVANTEL, S.A.
23216 211 17 47 RAMtelecom Telecomunicaciones
7738 204 538 24 Telecomunicacoes da Bahia S.A
28573 199 314 29 NET Servicos de Comunicao S.A
8163 183 11 8 METROTEL REDES S.A.
21826 181 32 50 INTERCABLE
19169 180 12 20 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 869 225 The Internet Solution
8452 221 188 7 TEDATA
6713 143 135 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 49 33 26 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
21280 26 4 4 Swift Global Kenya Ltd.Is an
29975 26 10 9 Vodacom
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1472 1405 Videsh Sanchar Nigam Ltd. Aut
11492 1156 1117 Cable One
9583 1118 1103 Sify Limited
18566 1028 1019 Covad Communications
4323 1346 989 Time Warner Telecom
9498 1014 946 BHARTI BT INTERNET LTD.
6478 1115 918 AT&T Worldnet Services
8151 1053 839 UniNet S.A. de C.V.
4134 1098 799 CHINANET-BACKBONE
17488 855 788 Hathway IP Over Cable Interne
22773 800 746 Cox Communications, Inc.
5668 663 646 CenturyTel Internet Holdings,
19262 792 609 Verizon Global Networks
7545 716 598 TPG Internet Pty Ltd
18101 606 555 Reliance Infocom Ltd Internet
6517 587 553 Yipes Communications, Inc.
19916 569 522 OLM LLC
6197 1029 521 BellSouth Network Solutions,
9829 530 521 BSNL National Internet Backbo
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
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
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
65535 PRIVATE 200.62.98.0/24 7137 TELEMATIX/ ENITEL
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
172.33.1.0/24 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 /10:16 /11:38 /12:135
/13:269 /14:480 /15:947 /16:9705 /17:4156 /18:6677
/19:14424 /20:16660 /21:15447 /22:19797 /23:20760 /24:123852
/25:776 /26:1018 /27:542 /28:97 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1148 1156 Cable One
6478 1114 1115 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 953 1118 Sify Limited
2386 931 1241 AT&T Data Communications Serv
7011 854 967 Citizens Utilities
4755 844 1472 Videsh Sanchar Nigam Ltd. Aut
7018 824 1499 AT&T WorldNet Services
6197 773 1029 BellSouth Network Solutions,
23577 771 780 Korea Telecom (ATM-MPLS)
9498 700 1014 BHARTI BT INTERNET LTD.
17488 674 855 Hathway IP Over Cable Interne
4766 606 815 Korea Telecom (KIX)
4323 568 1346 Time Warner Telecom
19916 564 569 OLM LLC
6517 542 587 Yipes Communications, Inc.
5668 521 663 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 508 606 Reliance Infocom Ltd Internet
855 443 543 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:87 12:1795 15:19 16:3 17:5
18:13 20:36 24:987 25:1 32:57 33:3
38:358 40:64 41:347 44:2 47:8 52:3
55:3 56:3 57:21 58:472 59:416 60:380
61:983 62:932 63:1982 64:3290 65:2371 66:3573
67:848 68:674 69:2001 70:466 71:108 72:1410
73:6 74:730 75:263 76:154 77:412 78:247
79:3 80:855 81:796 82:581 83:352 84:630
85:825 86:348 87:579 88:284 89:1042 90:38
91:688 92:4 96:1 97:6 98:9 116:415
117:206 118:39 121:325 122:635 123:204 124:704
125:1040 128:277 129:195 130:138 131:366 132:56
133:8 134:193 135:34 136:188 137:82 138:156
139:75 140:507 141:145 142:371 143:254 144:317
145:45 146:326 147:130 148:485 149:187 150:113
151:137 152:83 153:121 154:11 155:261 156:162
157:223 158:160 159:187 160:142 161:98 162:188
163:183 164:497 165:399 166:290 167:308 168:496
169:126 170:407 171:22 172:2 189:118 190:1207
192:5709 193:3993 194:3210 195:2460 196:939 198:3796
199:3218 200:5229 201:1233 202:7395 203:7808 204:3975
205:2002 206:2414 207:2788 208:2906 209:3584 210:2480
211:1077 212:1344 213:1523 214:416 215:44 216:4102
217:1187 218:319 219:390 220:1012 221:409 222:264
End of report
