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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 08 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 242520
Prefixes after maximum aggregation: 124036
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 118260
Total ASes present in the Internet Routing Table: 27015
Prefixes per ASN: 8.98
Origin-only ASes present in the Internet Routing Table: 23535
Origin ASes announcing only one prefix: 11453
Transit ASes present in the Internet Routing Table: 3480
Transit-only ASes present in the Internet Routing Table: 72
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: 9
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1799875232
Equivalent to 107 /8s, 71 /16s and 234 /24s
Percentage of available address space announced: 48.6
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 113906
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55891
Total APNIC prefixes after maximum aggregation: 20946
APNIC Deaggregation factor: 2.67
Prefixes being announced from the APNIC address blocks: 53407
Unique aggregates announced from the APNIC address blocks: 23738
APNIC Region origin ASes present in the Internet Routing Table: 3086
APNIC Prefixes per ASN: 17.31
APNIC Region origin ASes announcing only one prefix: 806
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: 13
Number of APNIC addresses announced to Internet: 324707488
Equivalent to 19 /8s, 90 /16s and 164 /24s
Percentage of available APNIC address space announced: 74.3
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: 114295
Total ARIN prefixes after maximum aggregation: 65203
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 83319
Unique aggregates announced from the ARIN address blocks: 33163
ARIN Region origin ASes present in the Internet Routing Table: 12048
ARIN Prefixes per ASN: 6.92
ARIN Region origin ASes announcing only one prefix: 4643
ARIN Region transit ASes present in the Internet Routing Table: 1147
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 356313792
Equivalent to 21 /8s, 60 /16s and 234 /24s
Percentage of available ARIN address space announced: 78.7
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: 50621
Total RIPE prefixes after maximum aggregation: 32163
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 47931
Unique aggregates announced from the RIPE address blocks: 31706
RIPE Region origin ASes present in the Internet Routing Table: 10699
RIPE Prefixes per ASN: 4.48
RIPE Region origin ASes announcing only one prefix: 5648
RIPE Region transit ASes present in the Internet Routing Table: 1653
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 339936384
Equivalent to 20 /8s, 67 /16s and 4 /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: 18373
Total LACNIC prefixes after maximum aggregation: 4608
LACNIC Deaggregation factor: 3.99
Prefixes being announced from the LACNIC address blocks: 16532
Unique aggregates announced from the LACNIC address blocks: 9032
LACNIC Region origin ASes present in the Internet Routing Table: 895
LACNIC Prefixes per ASN: 18.47
LACNIC Region origin ASes announcing only one prefix: 288
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 47146240
Equivalent to 2 /8s, 207 /16s and 101 /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: 3320
Total AfriNIC prefixes after maximum aggregation: 1098
AfriNIC Deaggregation factor: 3.02
Prefixes being announced from the AfriNIC address blocks: 2491
Unique aggregates announced from the AfriNIC address blocks: 1449
AfriNIC Region origin ASes present in the Internet Routing Table: 214
AfriNIC Prefixes per ASN: 11.64
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: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8189184
Equivalent to 0 /8s, 124 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 24.4
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 1512 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1106 82 434 Sify Limited
9498 1100 549 62 BHARTI BT INTERNET LTD.
4134 978 11601 305 CHINANET-BACKBONE
17488 951 61 84 Hathway IP Over Cable Interne
4766 827 5495 339 Korea Telecom (KIX)
23577 812 34 691 Korea Telecom (ATM-MPLS)
18101 609 121 60 Reliance Infocom Ltd Internet
4780 591 308 42 Digital United Inc.
9829 590 449 11 BSNL National Internet Backbo
1221 544 1952 420 Telstra Pty Ltd
4812 529 874 82 China Telecom (Shanghai)
4808 526 815 123 CNCGROUP IP network: China169
4668 521 68 10 LG-EDS Systems Inc.
17676 505 10919 64 Softbank BB Corp.
7545 485 146 89 TPG Internet Pty Ltd
4802 470 128 151 Wantree Development
9443 434 121 69 Primus Telecommunications
17974 400 145 17 PT TELEKOMUNIKASI INDONESIA
7474 387 202 273 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1488 6138 1013 AT&T WorldNet Services
4323 1387 1009 360 Time Warner Telecom
2386 1345 667 816 AT&T Data Communications Serv
11492 1198 134 23 Cable One
6478 1096 330 135 AT&T Worldnet Services
18566 1039 296 10 Covad Communications
7011 1008 296 589 Citizens Utilities
174 971 6833 818 Cogent Communications
6197 969 697 502 BellSouth Network Solutions,
701 896 6543 704 UUNET Technologies, Inc.
20115 858 792 466 Charter Communications
19262 857 3149 173 Verizon Global Networks
22773 837 2140 59 Cox Communications, Inc.
3356 833 10906 414 Level 3 Communications, LLC
1239 794 2672 551 Sprint
209 747 3784 595 Qwest
5668 666 177 19 CenturyTel Internet Holdings,
6140 604 109 152 ImpSat
6517 602 151 42 Yipes Communications, Inc.
15270 599 160 55 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 324 1458 298 TeliaNet Sweden
3320 316 6019 262 Deutsche Telekom AG
8452 287 188 7 TEDATA
8551 278 267 41 Bezeq International
8866 276 78 24 Bulgarian Telecommunication C
6746 272 128 250 Dynamic Network Technologies,
680 270 2046 255 DFN-IP service G-WiN
3215 270 2583 92 France Telecom Transpac
8708 269 420 241 Romania Data Systems S.A.
8220 242 422 228 COLT Telecommunications
3352 238 1948 40 Ibernet, Internet Access Netw
5462 236 666 27 Telewest Broadband
9155 235 43 10 QualityNet AS number
3269 231 3037 68 TELECOM ITALIA
3300 211 172 100 AUCS Communications Services
9121 209 1444 25 TTnet Autonomous System
29357 199 17 4 WATANIYA TELECOM
1257 197 1196 180 SWIPnet Swedish IP Network
9116 197 184 28 Goldenlines main autonomous s
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1150 2390 218 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 394 115 62 Servicios Alestra S.A de C.V
6471 376 85 37 ENTEL CHILE S.A.
14522 371 34 8 SatNet S.A.
22047 322 254 13 VTR PUNTO NET S.A.
10620 303 82 23 TVCABLE BOGOTA
10481 301 120 10 Prima S.A.
14117 286 19 15 Telefonica del Sur S.A.
6147 255 214 21 Telefonica Del Peru
7738 237 602 25 Telecomunicacoes da Bahia S.A
11556 235 128 3 Cable-Wireless Panama
28573 228 322 23 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.
10834 194 76 40 ADVANCE TELECOMUNICACIONES S.
19169 193 12 20 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 402 60 36 LINKdotNET AS number
3741 279 869 225 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 1198 1175 Cable One
9498 1100 1038 BHARTI BT INTERNET LTD.
18566 1039 1029 Covad Communications
4323 1387 1027 Time Warner Telecom
6478 1096 961 AT&T Worldnet Services
8151 1150 932 UniNet S.A. de C.V.
17488 951 867 Hathway IP Over Cable Interne
22773 837 778 Cox Communications, Inc.
19262 857 684 Verizon Global Networks
4134 978 673 CHINANET-BACKBONE
9583 1106 672 Sify Limited
5668 666 647 CenturyTel Internet Holdings,
9829 590 579 BSNL National Internet Backbo
6517 602 560 Yipes Communications, Inc.
18101 609 549 Reliance Infocom Ltd Internet
4780 591 549 Digital United Inc.
15270 599 544 PaeTec.net -a division of Pae
11830 545 536 Instituto Costarricense de El
2386 1345 529 AT&T Data Communications Serv
19916 563 521 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
65101 PRIVATE 89.211.192.0/19 42298 Qatar Telecom
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 202.112.54.0/24 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 /12:134
/13:271 /14:488 /15:970 /16:9751 /17:4216 /18:6955
/19:14919 /20:17082 /21:16129 /22:20302 /23:21327 /24:127263
/25:872 /26:1090 /27:552 /28:102 /29:8 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1188 1198 Cable One
6478 1095 1096 AT&T Worldnet Services
2386 1039 1345 AT&T Data Communications Serv
18566 1020 1039 Covad Communications
9583 951 1106 Sify Limited
7011 893 1008 Citizens Utilities
4755 878 1512 Videsh Sanchar Nigam Ltd. Aut
7018 815 1488 AT&T WorldNet Services
23577 803 812 Korea Telecom (ATM-MPLS)
9498 775 1100 BHARTI BT INTERNET LTD.
17488 766 951 Hathway IP Over Cable Interne
6197 729 969 BellSouth Network Solutions,
4766 610 827 Korea Telecom (KIX)
4323 594 1387 Time Warner Telecom
6517 565 602 Yipes Communications, Inc.
15270 559 599 PaeTec.net -a division of Pae
19916 558 563 OLM LLC
5668 523 666 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 503 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:96 12:1934 13:2 15:21 16:3
17:6 18:14 20:35 24:1005 25:1 31:1
32:61 33:4 38:373 40:65 41:437 44:2
47:8 52:3 55:3 56:3 57:22 58:505
59:418 60:402 61:984 62:1052 63:1981 64:3325
65:2364 66:3544 67:1013 68:640 69:2075 70:470
71:105 72:1457 73:7 74:801 75:173 76:175
77:490 78:419 79:66 80:883 81:790 82:560
83:362 84:519 85:905 86:367 87:596 88:291
89:1081 90:39 91:881 92:61 93:2 96:2
97:7 98:27 114:1 115:1 116:468 117:234
118:59 119:80 121:387 122:669 123:223 124:764
125:1061 128:311 129:187 130:132 131:390 132:68
133:9 134:187 135:34 136:200 137:85 138:149
139:90 140:500 141:131 142:374 143:267 144:321
145:51 146:336 147:128 148:483 149:188 150:116
151:129 152:95 153:127 154:11 155:278 156:200
157:244 158:165 159:210 160:194 161:99 162:199
163:189 164:562 165:420 166:291 167:310 168:561
169:130 170:427 171:28 172:3 173:1 189:138
190:1369 192:5749 193:4058 194:3233 195:2331 196:950
198:3803 199:3228 200:5476 201:1299 202:7485 203:7899
204:3963 205:2054 206:2420 207:2747 208:3079 209:3595
210:2636 211:1113 212:1262 213:1611 214:440 215:45
216:4105 217:1227 218:332 219:401 220:1006 221:410
222:295
End of report
