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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 13 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237603
Prefixes after maximum aggregation: 122529
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 115857
Total ASes present in the Internet Routing Table: 26631
Prefixes per ASN: 8.92
Origin-only ASes present in the Internet Routing Table: 23188
Origin ASes announcing only one prefix: 11286
Transit ASes present in the Internet Routing Table: 3443
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 13
Unregistered ASNs in the Routing Table: 7
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: 1790719744
Equivalent to 106 /8s, 188 /16s and 55 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110435
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55452
Total APNIC prefixes after maximum aggregation: 21176
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52340
Unique aggregates announced from the APNIC address blocks: 23221
APNIC Region origin ASes present in the Internet Routing Table: 3078
APNIC Prefixes per ASN: 17.00
APNIC Region origin ASes announcing only one prefix: 801
APNIC Region transit ASes present in the Internet Routing Table: 469
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 324361664
Equivalent to 19 /8s, 85 /16s and 93 /24s
Percentage of available APNIC address space announced: 74.2
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, 114/7, 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: 111489
Total ARIN prefixes after maximum aggregation: 63770
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82376
Unique aggregates announced from the ARIN address blocks: 32714
ARIN Region origin ASes present in the Internet Routing Table: 11927
ARIN Prefixes per ASN: 6.91
ARIN Region origin ASes announcing only one prefix: 4589
ARIN Region transit ASes present in the Internet Routing Table: 1119
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 352452736
Equivalent to 21 /8s, 2 /16s and 0 /24s
Percentage of available ARIN address space announced: 77.8
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: 49622
Total RIPE prefixes after maximum aggregation: 31927
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46513
Unique aggregates announced from the RIPE address blocks: 30704
RIPE Region origin ASes present in the Internet Routing Table: 10460
RIPE Prefixes per ASN: 4.45
RIPE Region origin ASes announcing only one prefix: 5547
RIPE Region transit ASes present in the Internet Routing Table: 1635
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 336001024
Equivalent to 20 /8s, 6 /16s and 248 /24s
Percentage of available RIPE address space announced: 77.0
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: 17779
Total LACNIC prefixes after maximum aggregation: 4566
LACNIC Deaggregation factor: 3.89
Prefixes being announced from the LACNIC address blocks: 15685
Unique aggregates announced from the LACNIC address blocks: 8701
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 18.01
LACNIC Region origin ASes announcing only one prefix: 281
LACNIC Region transit ASes present in the Internet Routing Table: 149
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46036224
Equivalent to 2 /8s, 190 /16s and 117 /24s
Percentage of available LACNIC address space announced: 45.7
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: 3240
Total AfriNIC prefixes after maximum aggregation: 1076
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2407
Unique aggregates announced from the AfriNIC address blocks: 1407
AfriNIC Region origin ASes present in the Internet Routing Table: 212
AfriNIC Prefixes per ASN: 11.35
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8167424
Equivalent to 0 /8s, 124 /16s and 160 /24s
Percentage of available AfriNIC address space announced: 24.3
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 1478 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1100 11563 301 CHINANET-BACKBONE
9583 1090 81 420 Sify Limited
9498 1046 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 815 5474 328 Korea Telecom (KIX)
23577 778 34 679 Korea Telecom (ATM-MPLS)
7545 722 159 124 TPG Internet Pty Ltd
18101 609 119 53 Reliance Infocom Ltd Internet
1221 544 1951 424 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 521 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 496 797 121 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
9443 440 121 70 Primus Telecommunications
17974 405 146 14 PT TELEKOMUNIKASI INDONESIA
7474 383 202 269 SingTel Optus Pty Ltd
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1493 6131 1005 AT&T WorldNet Services
4323 1366 1014 359 Time Warner Telecom
2386 1259 630 769 AT&T Data Communications Serv
11492 1169 121 43 Cable One
6478 1122 329 181 AT&T Worldnet Services
18566 1031 288 9 Covad Communications
6197 1030 719 509 BellSouth Network Solutions,
7011 982 290 565 Citizens Utilities
174 979 6866 844 Cogent Communications
701 905 6571 708 UUNET Technologies, Inc.
20115 847 773 461 Charter Communications
3356 828 10887 411 Level 3 Communications, LLC
22773 809 2133 54 Cox Communications, Inc.
19262 804 2895 185 Verizon Global Networks
1239 800 2713 557 Sprint
209 727 3784 571 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
15270 599 161 41 PaeTec.net -a division of Pae
3561 588 2324 370 Savvis
6517 586 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 469 1917 382 UUNET - Commercial IP service
9116 350 184 29 Goldenlines main autonomous s
8551 326 314 40 Bezeq International
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8452 279 188 7 TEDATA
6746 275 129 253 Dynamic Network Technologies,
8708 274 421 245 Romania Data Systems S.A.
8866 269 62 25 Bulgarian Telecommunication C
680 268 2045 254 DFN-IP service G-WiN
3215 264 2511 94 France Telecom Transpac
8220 256 444 237 COLT Telecommunications
3352 235 1932 41 Ibernet, Internet Access Netw
3269 229 2967 71 TELECOM ITALIA
9121 210 1442 25 TTnet Autonomous System
3300 198 171 93 AUCS Communications Services
3246 195 257 185 Song Networks
12479 195 578 6 Uni2 Autonomous System
1257 194 1195 177 SWIPnet Swedish IP Network
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1161 2419 219 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 381 33 8 SatNet S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 373 180 56 Telecom Argentina Stet-France
6471 357 85 38 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 254 71 43 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 221 18 48 RAMtelecom Telecomunicaciones
6503 218 187 86 AVANTEL, S.A.
28573 214 314 27 NET Servicos de Comunicao S.A
7738 206 538 24 Telecomunicacoes da Bahia S.A
20299 188 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 182 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 380 60 40 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 198 34 3 EgyNet
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 81 84 4 Nile Online
2905 76 176 73 The Internetworking Company o
23889 76 24 15 MAURITIUS TELECOM
20484 64 5 6 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
29571 56 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
16637 45 21 29 Johnnic e-Ventures
8524 32 2 10 AUCEGYPT Autonomous System
12455 32 5 7 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1478 1409 Videsh Sanchar Nigam Ltd. Aut
11492 1169 1126 Cable One
18566 1031 1022 Covad Communications
4323 1366 1007 Time Warner Telecom
9498 1046 982 BHARTI BT INTERNET LTD.
8151 1161 942 UniNet S.A. de C.V.
6478 1122 941 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
4134 1100 799 CHINANET-BACKBONE
22773 809 755 Cox Communications, Inc.
9583 1090 670 Sify Limited
5668 663 646 CenturyTel Internet Holdings,
19262 804 619 Verizon Global Networks
7545 722 598 TPG Internet Pty Ltd
15270 599 558 PaeTec.net -a division of Pae
18101 609 556 Reliance Infocom Ltd Internet
6517 586 553 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
6197 1030 521 BellSouth Network Solutions,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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
65068 PRIVATE 79.171.184.0/21 43895 *
64718 PRIVATE 81.200.197.0/24 25325 AS of Deutsche Bahn
64718 PRIVATE 81.200.198.0/23 25325 AS of Deutsche Bahn
64719 PRIVATE 81.200.204.0/24 25325 AS of Deutsche Bahn
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
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
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
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 /11:39 /12:136
/13:271 /14:484 /15:949 /16:9705 /17:4192 /18:6768
/19:14672 /20:16798 /21:15658 /22:19857 /23:20853 /24:124679
/25:813 /26:1020 /27:542 /28:111 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1160 1169 Cable One
6478 1121 1122 AT&T Worldnet Services
18566 1013 1031 Covad Communications
2386 951 1259 AT&T Data Communications Serv
9583 934 1090 Sify Limited
7011 869 982 Citizens Utilities
4755 849 1478 Videsh Sanchar Nigam Ltd. Aut
7018 818 1493 AT&T WorldNet Services
6197 773 1030 BellSouth Network Solutions,
23577 769 778 Korea Telecom (ATM-MPLS)
9498 730 1046 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 606 815 Korea Telecom (KIX)
4323 579 1366 Time Warner Telecom
19916 564 569 OLM LLC
15270 561 599 PaeTec.net -a division of Pae
6517 542 586 Yipes Communications, Inc.
5668 522 663 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 509 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1827 15:19 16:3 17:6
18:13 20:35 24:993 25:1 32:57 33:3
38:359 40:64 41:404 44:2 47:8 52:3
55:3 56:3 57:20 58:476 59:413 60:383
61:987 62:940 63:1976 64:3308 65:2375 66:3570
67:906 68:680 69:2015 70:466 71:106 72:1435
73:7 74:754 75:264 76:153 77:417 78:271
79:11 80:875 81:795 82:578 83:345 84:608
85:827 86:358 87:584 88:281 89:1018 90:38
91:728 92:5 96:2 97:6 98:10 116:432
117:224 118:44 121:336 122:643 123:208 124:709
125:1042 128:309 129:195 130:142 131:369 132:56
133:9 134:194 135:34 136:192 137:82 138:152
139:75 140:513 141:145 142:372 143:258 144:323
145:50 146:326 147:125 148:485 149:185 150:169
151:137 152:93 153:121 154:11 155:261 156:161
157:224 158:159 159:197 160:133 161:101 162:190
163:184 164:497 165:406 166:291 167:309 168:513
169:130 170:419 171:29 172:5 189:116 190:1206
192:5727 193:4040 194:3202 195:2467 196:937 198:3802
199:3226 200:5244 201:1250 202:7485 203:7838 204:3978
205:2003 206:2423 207:2782 208:2953 209:3596 210:2493
211:1079 212:1303 213:1519 214:417 215:44 216:4091
217:1191 218:320 219:399 220:1014 221:407 222:266
End of report
