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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 02 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 241924
Prefixes after maximum aggregation: 123947
Deaggregation factor: 1.95
Unique aggregates announced to Internet: 118057
Total ASes present in the Internet Routing Table: 26984
Prefixes per ASN: 8.97
Origin-only ASes present in the Internet Routing Table: 23496
Origin ASes announcing only one prefix: 11434
Transit ASes present in the Internet Routing Table: 3488
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 19
Max AS path prepend of ASN (29642) 15
Prefixes from unregistered ASNs in the Routing Table: 11
Unregistered ASNs in the Routing Table: 11
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1799119408
Equivalent to 107 /8s, 60 /16s and 98 /24s
Percentage of available address space announced: 48.5
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 113623
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55573
Total APNIC prefixes after maximum aggregation: 20931
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 53148
Unique aggregates announced from the APNIC address blocks: 23688
APNIC Region origin ASes present in the Internet Routing Table: 3087
APNIC Prefixes per ASN: 17.22
APNIC Region origin ASes announcing only one prefix: 809
APNIC Region transit ASes present in the Internet Routing Table: 457
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 324394800
Equivalent to 19 /8s, 85 /16s and 223 /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: 114334
Total ARIN prefixes after maximum aggregation: 65143
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 83411
Unique aggregates announced from the ARIN address blocks: 33147
ARIN Region origin ASes present in the Internet Routing Table: 12034
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4631
ARIN Region transit ASes present in the Internet Routing Table: 1152
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 356186816
Equivalent to 21 /8s, 58 /16s and 250 /24s
Percentage of available ARIN address space announced: 78.6
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: 50504
Total RIPE prefixes after maximum aggregation: 32164
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 47844
Unique aggregates announced from the RIPE address blocks: 31668
RIPE Region origin ASes present in the Internet Routing Table: 10684
RIPE Prefixes per ASN: 4.48
RIPE Region origin ASes announcing only one prefix: 5639
RIPE Region transit ASes present in the Internet Routing Table: 1656
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 339671680
Equivalent to 20 /8s, 62 /16s and 250 /24s
Percentage of available RIPE address space announced: 77.9
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: 18149
Total LACNIC prefixes after maximum aggregation: 4590
LACNIC Deaggregation factor: 3.95
Prefixes being announced from the LACNIC address blocks: 16332
Unique aggregates announced from the LACNIC address blocks: 9004
LACNIC Region origin ASes present in the Internet Routing Table: 892
LACNIC Prefixes per ASN: 18.31
LACNIC Region origin ASes announcing only one prefix: 289
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: 47130112
Equivalent to 2 /8s, 207 /16s and 38 /24s
Percentage of available LACNIC address space announced: 46.8
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: 3345
Total AfriNIC prefixes after maximum aggregation: 1103
AfriNIC Deaggregation factor: 3.03
Prefixes being announced from the AfriNIC address blocks: 2483
Unique aggregates announced from the AfriNIC address blocks: 1445
AfriNIC Region origin ASes present in the Internet Routing Table: 213
AfriNIC Prefixes per ASN: 11.66
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 8211456
Equivalent to 0 /8s, 125 /16s and 76 /24s
Percentage of available AfriNIC address space announced: 24.5
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 1506 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1101 82 433 Sify Limited
9498 1060 549 61 BHARTI BT INTERNET LTD.
4134 979 11601 305 CHINANET-BACKBONE
17488 936 60 84 Hathway IP Over Cable Interne
4766 828 5495 339 Korea Telecom (KIX)
23577 811 34 690 Korea Telecom (ATM-MPLS)
18101 607 120 59 Reliance Infocom Ltd Internet
9829 590 449 11 BSNL National Internet Backbo
7545 582 147 98 TPG Internet Pty Ltd
1221 544 1952 420 Telstra Pty Ltd
4812 529 874 82 China Telecom (Shanghai)
4808 524 799 122 CNCGROUP IP network: China169
4668 521 68 10 LG-EDS Systems Inc.
17676 505 10919 64 Softbank BB Corp.
4802 470 128 151 Wantree Development
9443 438 121 69 Primus Telecommunications
17974 401 145 17 PT TELEKOMUNIKASI INDONESIA
7474 387 202 273 SingTel Optus Pty Ltd
4837 367 5076 179 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6106 1007 AT&T WorldNet Services
4323 1386 1009 361 Time Warner Telecom
2386 1337 635 812 AT&T Data Communications Serv
11492 1203 134 15 Cable One
6478 1095 330 135 AT&T Worldnet Services
18566 1037 288 9 Covad Communications
6197 1026 721 509 BellSouth Network Solutions,
7011 1010 297 590 Citizens Utilities
174 967 6833 820 Cogent Communications
701 903 6544 710 UUNET Technologies, Inc.
20115 859 793 466 Charter Communications
19262 856 3141 172 Verizon Global Networks
3356 838 10906 416 Level 3 Communications, LLC
22773 835 2140 59 Cox Communications, Inc.
1239 791 2672 551 Sprint
209 752 3785 597 Qwest
5668 664 176 18 CenturyTel Internet Holdings,
6140 603 109 151 ImpSat
6517 596 150 42 Yipes Communications, Inc.
15270 596 160 52 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 409 1654 368 TDC Tele Danmark
3301 323 1458 297 TeliaNet Sweden
3320 316 6019 262 Deutsche Telekom AG
8452 280 188 7 TEDATA
8866 277 78 24 Bulgarian Telecommunication C
8551 276 266 40 Bezeq International
3215 270 2583 92 France Telecom Transpac
6746 270 128 249 Dynamic Network Technologies,
680 268 2045 254 DFN-IP service G-WiN
8708 265 420 238 Romania Data Systems S.A.
8220 243 423 229 COLT Telecommunications
3352 238 1948 40 Ibernet, Internet Access Netw
9155 235 43 10 QualityNet AS number
3269 231 3037 68 TELECOM ITALIA
5462 229 666 27 Telewest Broadband
9116 221 184 28 Goldenlines main autonomous s
3300 211 172 100 AUCS Communications Services
9121 211 1444 26 TTnet Autonomous System
29357 199 17 4 WATANIYA TELECOM
1257 196 1195 179 SWIPnet Swedish IP Network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1147 2390 222 UniNet S.A. de C.V.
11830 545 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 419 204 56 Telecom Argentina Stet-France
11172 379 115 62 Servicios Alestra S.A de C.V
6471 375 85 37 ENTEL CHILE S.A.
14522 371 34 8 SatNet S.A.
22047 322 254 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
10620 297 81 22 TVCABLE BOGOTA
14117 286 19 15 Telefonica del Sur S.A.
6147 254 214 21 Telefonica Del Peru
7738 238 602 25 Telecomunicacoes da Bahia S.A
11556 235 128 3 Cable-Wireless Panama
28573 229 321 29 NET Servicos de Comunicao S.A
23216 225 17 47 RAMtelecom Telecomunicaciones
20299 220 33 29 NEWCOM AMERICAS
6503 216 180 85 AVANTEL, S.A.
19169 192 12 21 Telconet
21826 187 33 48 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 401 60 36 LINKdotNET AS number
3741 284 869 226 The Internet Solution
20858 201 34 3 EgyNet
6713 145 135 11 Itissalat Al-MAGHRIB
2018 142 268 114 Tertiary Education Network
33783 139 9 10 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 84 84 4 Nile Online
23889 79 24 16 MAURITIUS TELECOM
2905 77 174 73 The Internetworking Company o
29571 77 13 7 Ci Telecom Autonomous system
20484 70 5 6 Yalla Online Autonomous Syste
15706 57 12 4 Sudatel Internet Exchange Aut
5713 50 455 40 Telkom SA Ltd
33774 50 37 28 AS Number for Telecom Algeria
16637 43 21 28 Johnnic e-Ventures
8524 33 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
11492 1203 1188 Cable One
18566 1037 1028 Covad Communications
4323 1386 1025 Time Warner Telecom
9498 1060 999 BHARTI BT INTERNET LTD.
6478 1095 960 AT&T Worldnet Services
8151 1147 925 UniNet S.A. de C.V.
17488 936 852 Hathway IP Over Cable Interne
22773 835 776 Cox Communications, Inc.
19262 856 684 Verizon Global Networks
4134 979 674 CHINANET-BACKBONE
9583 1101 668 Sify Limited
5668 664 646 CenturyTel Internet Holdings,
9829 590 579 BSNL National Internet Backbo
6517 596 554 Yipes Communications, Inc.
18101 607 548 Reliance Infocom Ltd Internet
15270 596 544 PaeTec.net -a division of Pae
11830 545 536 Instituto Costarricense de El
2386 1337 525 AT&T Data Communications Serv
19916 563 521 OLM LLC
6197 1026 517 BellSouth Network Solutions,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
65068 PRIVATE 79.171.184.0/21 43895 *
65500 PRIVATE 83.142.233.0/24 20516 LuckyNet Israel
65364 PRIVATE 190.144.163.0/24 14080 FIRSTCOM COLOMBIA
65389 PRIVATE 190.144.166.0/24 14080 FIRSTCOM COLOMBIA
65394 PRIVATE 190.144.167.0/24 14080 FIRSTCOM COLOMBIA
65403 PRIVATE 190.144.168.0/24 14080 FIRSTCOM COLOMBIA
65375 PRIVATE 190.144.175.0/24 14080 FIRSTCOM COLOMBIA
65201 PRIVATE 202.112.49.0/24 4538 China Education and
65201 PRIVATE 202.112.50.0/24 4538 China Education and
65201 PRIVATE 202.112.57.0/24 4538 China Education and
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.31.31.0/24 9730 The Best ISP to go Multimedia
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
173.173.173.0/24 9730 The Best ISP to go Multimedia
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 /11:40 /12:135
/13:271 /14:487 /15:971 /16:9747 /17:4202 /18:6906
/19:14909 /20:17073 /21:16132 /22:20260 /23:21279 /24:126846
/25:870 /26:1088 /27:550 /28:101 /29:8 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1193 1203 Cable One
6478 1094 1095 AT&T Worldnet Services
2386 1033 1337 AT&T Data Communications Serv
18566 1019 1037 Covad Communications
9583 946 1101 Sify Limited
7011 895 1010 Citizens Utilities
4755 872 1506 Videsh Sanchar Nigam Ltd. Aut
7018 815 1482 AT&T WorldNet Services
23577 802 811 Korea Telecom (ATM-MPLS)
6197 772 1026 BellSouth Network Solutions,
17488 751 936 Hathway IP Over Cable Interne
9498 748 1060 BHARTI BT INTERNET LTD.
4766 612 828 Korea Telecom (KIX)
4323 593 1386 Time Warner Telecom
6517 558 596 Yipes Communications, Inc.
15270 558 596 PaeTec.net -a division of Pae
19916 558 563 OLM LLC
5668 522 664 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 501 607 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:95 12:1926 13:2 15:21 16:3
17:6 18:14 20:35 24:1018 25:1 31:1
32:61 33:4 38:372 40:69 41:427 44:2
47:8 52:3 55:3 56:3 57:21 58:508
59:412 60:399 61:983 62:1046 63:1982 64:3320
65:2363 66:3573 67:1013 68:643 69:2069 70:465
71:106 72:1466 73:7 74:812 75:273 76:175
77:488 78:413 79:65 80:884 81:790 82:554
83:371 84:522 85:907 86:366 87:598 88:291
89:1077 90:39 91:874 92:68 93:2 96:2
97:7 98:25 114:1 115:1 116:452 117:232
118:57 119:80 121:382 122:666 123:231 124:759
125:1057 128:310 129:185 130:132 131:388 132:65
133:9 134:188 135:34 136:194 137:84 138:146
139:71 140:500 141:126 142:375 143:262 144:321
145:51 146:333 147:128 148:481 149:186 150:116
151:129 152:95 153:127 154:11 155:279 156:201
157:244 158:165 159:209 160:192 161:99 162:198
163:187 164:560 165:411 166:291 167:309 168:545
169:129 170:422 171:29 172:3 173:1 189:137
190:1331 192:5736 193:4059 194:3249 195:2331 196:948
198:3806 199:3232 200:5346 201:1311 202:7468 203:7805
204:3966 205:2045 206:2415 207:2753 208:3071 209:3577
210:2537 211:1112 212:1251 213:1607 214:441 215:45
216:4106 217:1220 218:332 219:405 220:1000 221:408
222:295
End of report
