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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 09 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 242623
Prefixes after maximum aggregation: 124063
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 118300
Total ASes present in the Internet Routing Table: 27025
Prefixes per ASN: 8.98
Origin-only ASes present in the Internet Routing Table: 23539
Origin ASes announcing only one prefix: 11458
Transit ASes present in the Internet Routing Table: 3486
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: 13
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: 1799707552
Equivalent to 107 /8s, 69 /16s and 91 /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: 114094
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55795
Total APNIC prefixes after maximum aggregation: 20928
APNIC Deaggregation factor: 2.67
Prefixes being announced from the APNIC address blocks: 53311
Unique aggregates announced from the APNIC address blocks: 23629
APNIC Region origin ASes present in the Internet Routing Table: 3084
APNIC Prefixes per ASN: 17.29
APNIC Region origin ASes announcing only one prefix: 806
APNIC Region transit ASes present in the Internet Routing Table: 459
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 324810656
Equivalent to 19 /8s, 92 /16s and 55 /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: 114385
Total ARIN prefixes after maximum aggregation: 65209
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 83430
Unique aggregates announced from the ARIN address blocks: 33222
ARIN Region origin ASes present in the Internet Routing Table: 12056
ARIN Prefixes per ASN: 6.92
ARIN Region origin ASes announcing only one prefix: 4650
ARIN Region transit ASes present in the Internet Routing Table: 1144
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 356067008
Equivalent to 21 /8s, 57 /16s and 38 /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: 50706
Total RIPE prefixes after maximum aggregation: 32185
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 48023
Unique aggregates announced from the RIPE address blocks: 31788
RIPE Region origin ASes present in the Internet Routing Table: 10699
RIPE Prefixes per ASN: 4.49
RIPE Region origin ASes announcing only one prefix: 5645
RIPE Region transit ASes present in the Internet Routing Table: 1660
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 339858048
Equivalent to 20 /8s, 65 /16s and 210 /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: 18361
Total LACNIC prefixes after maximum aggregation: 4621
LACNIC Deaggregation factor: 3.97
Prefixes being announced from the LACNIC address blocks: 16525
Unique aggregates announced from the LACNIC address blocks: 9040
LACNIC Region origin ASes present in the Internet Routing Table: 896
LACNIC Prefixes per ASN: 18.44
LACNIC Region origin ASes announcing only one prefix: 290
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: 47151360
Equivalent to 2 /8s, 207 /16s and 121 /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: 3353
Total AfriNIC prefixes after maximum aggregation: 1102
AfriNIC Deaggregation factor: 3.04
Prefixes being announced from the AfriNIC address blocks: 2505
Unique aggregates announced from the AfriNIC address blocks: 1455
AfriNIC Region origin ASes present in the Internet Routing Table: 216
AfriNIC Prefixes per ASN: 11.60
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8215296
Equivalent to 0 /8s, 125 /16s and 91 /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 1516 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1110 82 435 Sify Limited
9498 1100 549 62 BHARTI BT INTERNET LTD.
17488 951 61 84 Hathway IP Over Cable Interne
4134 929 11601 305 CHINANET-BACKBONE
4766 836 5495 340 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 528 874 82 China Telecom (Shanghai)
4808 526 815 123 CNCGROUP IP network: China169
4668 522 68 10 LG-EDS Systems Inc.
17676 505 10919 64 Softbank BB Corp.
7545 486 146 90 TPG Internet Pty Ltd
4802 470 128 151 Wantree Development
9443 434 121 69 Primus Telecommunications
17974 400 145 17 PT TELEKOMUNIKASI INDONESIA
7474 386 202 272 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6074 1005 AT&T WorldNet Services
4323 1389 1011 361 Time Warner Telecom
2386 1343 667 815 AT&T Data Communications Serv
11492 1200 134 23 Cable One
6478 1095 330 135 AT&T Worldnet Services
18566 1039 296 10 Covad Communications
7011 1002 296 589 Citizens Utilities
174 970 6833 817 Cogent Communications
6197 968 697 502 BellSouth Network Solutions,
701 896 6559 694 UUNET Technologies, Inc.
20115 861 793 467 Charter Communications
19262 857 3149 173 Verizon Global Networks
22773 836 2140 59 Cox Communications, Inc.
3356 829 10906 411 Level 3 Communications, LLC
1239 793 2672 551 Sprint
209 746 3784 594 Qwest
5668 666 177 19 CenturyTel Internet Holdings,
6140 604 109 152 ImpSat
6517 602 151 42 Yipes Communications, Inc.
852 601 1134 359 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 399 1650 364 TDC Tele Danmark
3301 327 1458 298 TeliaNet Sweden
3320 316 6019 262 Deutsche Telekom AG
8452 286 188 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
5462 239 666 27 Telewest Broadband
3352 238 1948 40 Ibernet, Internet Access Netw
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 196 184 28 Goldenlines main autonomous s
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1140 2390 217 UniNet S.A. de C.V.
11830 545 299 9 Instituto Costarricense de El
16814 425 27 15 NSS, S.A.
7303 418 203 56 Telecom Argentina Stet-France
11172 395 115 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.
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 240 602 25 Telecomunicacoes da Bahia S.A
11556 236 128 4 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
2905 77 174 73 The Internetworking Company o
23889 77 24 16 MAURITIUS TELECOM
29571 77 13 7 Ci Telecom Autonomous system
20484 71 5 4 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 1200 1177 Cable One
9498 1100 1038 BHARTI BT INTERNET LTD.
18566 1039 1029 Covad Communications
4323 1389 1028 Time Warner Telecom
6478 1095 960 AT&T Worldnet Services
8151 1140 923 UniNet S.A. de C.V.
17488 951 867 Hathway IP Over Cable Interne
22773 836 777 Cox Communications, Inc.
19262 857 684 Verizon Global Networks
9583 1110 675 Sify Limited
5668 666 647 CenturyTel Internet Holdings,
4134 929 624 CHINANET-BACKBONE
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 1343 528 AT&T Data Communications Serv
19916 563 521 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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 202.112.45.0/24 4538 China Education and
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
65201 PRIVATE 202.112.58.0/24 4538 China Education and
65530 PRIVATE 210.18.244.0/24 9738 Besecure P/L
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 /12:133
/13:270 /14:486 /15:967 /16:9741 /17:4203 /18:6944
/19:14913 /20:17076 /21:16134 /22:20304 /23:21408 /24:127333
/25:869 /26:1090 /27:552 /28:103 /29:8 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1190 1200 Cable One
6478 1094 1095 AT&T Worldnet Services
2386 1038 1343 AT&T Data Communications Serv
18566 1020 1039 Covad Communications
9583 955 1110 Sify Limited
7011 887 1002 Citizens Utilities
4755 882 1516 Videsh Sanchar Nigam Ltd. Aut
7018 815 1481 AT&T WorldNet Services
23577 803 812 Korea Telecom (ATM-MPLS)
9498 772 1100 BHARTI BT INTERNET LTD.
17488 766 951 Hathway IP Over Cable Interne
6197 728 968 BellSouth Network Solutions,
4766 619 836 Korea Telecom (KIX)
4323 594 1389 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 512 522 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 38:374 40:65 41:439 44:2
47:8 52:3 55:3 56:3 57:22 58:473
59:415 60:402 61:982 62:1052 63:1982 64:3330
65:2365 66:3606 67:1051 68:640 69:2076 70:470
71:105 72:1456 73:7 74:801 75:172 76:174
77:489 78:422 79:66 80:884 81:788 82:560
83:362 84:518 85:928 86:367 87:595 88:290
89:1083 90:39 91:884 92:62 93:2 96:2
97:7 98:26 114:1 115:1 116:473 117:232
118:62 119:81 121:389 122:668 123:222 124:765
125:1061 128:310 129:187 130:125 131:391 132:67
133:9 134:187 135:31 136:215 137:84 138:149
139:90 140:499 141:131 142:374 143:265 144:323
145:51 146:337 147:128 148:483 149:188 150:116
151:129 152:95 153:127 154:11 155:278 156:201
157:243 158:164 159:212 160:194 161:99 162:199
163:189 164:562 165:420 166:291 167:310 168:561
169:130 170:427 171:28 172:3 173:1 189:139
190:1369 192:5746 193:4057 194:3243 195:2325 196:956
198:3798 199:3224 200:5467 201:1297 202:7434 203:7901
204:3962 205:2050 206:2420 207:2760 208:3081 209:3609
210:2640 211:1112 212:1261 213:1610 214:440 215:45
216:4103 217:1228 218:330 219:401 220:1006 221:411
222:295
End of report
