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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 14 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 242964
Prefixes after maximum aggregation: 124145
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 118603
Total ASes present in the Internet Routing Table: 27069
Prefixes per ASN: 8.98
Origin-only ASes present in the Internet Routing Table: 23568
Origin ASes announcing only one prefix: 11452
Transit ASes present in the Internet Routing Table: 3501
Transit-only ASes present in the Internet Routing Table: 75
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: 12
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: 1800352032
Equivalent to 107 /8s, 79 /16s and 49 /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: 114393
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55967
Total APNIC prefixes after maximum aggregation: 20979
APNIC Deaggregation factor: 2.67
Prefixes being announced from the APNIC address blocks: 53482
Unique aggregates announced from the APNIC address blocks: 23781
APNIC Region origin ASes present in the Internet Routing Table: 3094
APNIC Prefixes per ASN: 17.29
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 460
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 325172384
Equivalent to 19 /8s, 97 /16s and 188 /24s
Percentage of available APNIC address space announced: 74.4
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: 114469
Total ARIN prefixes after maximum aggregation: 65207
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 83463
Unique aggregates announced from the ARIN address blocks: 33235
ARIN Region origin ASes present in the Internet Routing Table: 12061
ARIN Prefixes per ASN: 6.92
ARIN Region origin ASes announcing only one prefix: 4646
ARIN Region transit ASes present in the Internet Routing Table: 1150
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 355874496
Equivalent to 21 /8s, 54 /16s and 54 /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: 50816
Total RIPE prefixes after maximum aggregation: 32221
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 48127
Unique aggregates announced from the RIPE address blocks: 31972
RIPE Region origin ASes present in the Internet Routing Table: 10724
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: 1668
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 340148736
Equivalent to 20 /8s, 70 /16s and 66 /24s
Percentage of available RIPE address space announced: 78.0
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: 18343
Total LACNIC prefixes after maximum aggregation: 4621
LACNIC Deaggregation factor: 3.97
Prefixes being announced from the LACNIC address blocks: 16501
Unique aggregates announced from the LACNIC address blocks: 8990
LACNIC Region origin ASes present in the Internet Routing Table: 897
LACNIC Prefixes per ASN: 18.40
LACNIC Region origin ASes announcing only one prefix: 286
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 47243264
Equivalent to 2 /8s, 208 /16s and 224 /24s
Percentage of available LACNIC address space announced: 46.9
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: 3348
Total AfriNIC prefixes after maximum aggregation: 1099
AfriNIC Deaggregation factor: 3.05
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: 217
AfriNIC Prefixes per ASN: 11.54
AfriNIC Region origin ASes announcing only one prefix: 68
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: 15
Number of AfriNIC addresses announced to Internet: 8219648
Equivalent to 0 /8s, 125 /16s and 108 /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 1520 383 71 Videsh Sanchar Nigam Ltd. Aut
9583 1113 82 436 Sify Limited
9498 1096 549 61 BHARTI BT INTERNET LTD.
17488 960 62 87 Hathway IP Over Cable Interne
4134 859 11593 306 CHINANET-BACKBONE
4766 833 5494 338 Korea Telecom (KIX)
23577 816 34 694 Korea Telecom (ATM-MPLS)
18101 609 121 60 Reliance Infocom Ltd Internet
4780 591 308 43 Digital United Inc.
9829 590 449 11 BSNL National Internet Backbo
1221 544 1952 420 Telstra Pty Ltd
4812 535 938 83 China Telecom (Shanghai)
4808 530 821 125 CNCGROUP IP network: China169
4668 521 68 10 LG-EDS Systems Inc.
17676 505 10919 64 Softbank BB Corp.
7545 485 146 88 TPG Internet Pty Ltd
4802 471 128 152 Wantree Development
9443 434 121 69 Primus Telecommunications
17974 399 145 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 1467 6073 993 AT&T WorldNet Services
4323 1389 1008 362 Time Warner Telecom
2386 1353 668 823 AT&T Data Communications Serv
11492 1210 134 16 Cable One
6478 1095 330 135 AT&T Worldnet Services
18566 1040 296 10 Covad Communications
7011 1003 296 589 Citizens Utilities
6197 968 697 502 BellSouth Network Solutions,
174 967 6831 810 Cogent Communications
701 896 6559 691 UUNET Technologies, Inc.
19262 868 3206 151 Verizon Global Networks
20115 861 793 467 Charter Communications
22773 838 2139 58 Cox Communications, Inc.
3356 835 10907 412 Level 3 Communications, LLC
1239 795 2673 553 Sprint
209 751 3912 600 Qwest
5668 665 177 19 CenturyTel Internet Holdings,
6140 616 110 152 ImpSat
6517 607 150 41 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 402 1651 367 TDC Tele Danmark
3301 328 1458 299 TeliaNet Sweden
3320 317 6019 263 Deutsche Telekom AG
8452 283 188 7 TEDATA
8551 278 267 41 Bezeq International
8866 277 78 24 Bulgarian Telecommunication C
5462 276 666 27 Telewest Broadband
6746 272 128 250 Dynamic Network Technologies,
680 270 2046 255 DFN-IP service G-WiN
3215 270 2583 92 France Telecom Transpac
8708 270 420 241 Romania Data Systems S.A.
8220 242 422 228 COLT Telecommunications
3352 240 1948 40 Ibernet, Internet Access Netw
3269 231 3037 68 TELECOM ITALIA
9155 214 43 10 QualityNet AS number
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
2856 195 2306 161 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1149 2390 218 UniNet S.A. de C.V.
11830 545 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 418 203 56 Telecom Argentina Stet-France
11172 396 115 62 Servicios Alestra S.A de C.V
6471 374 85 37 ENTEL CHILE S.A.
14117 351 23 16 Telefonica del Sur S.A.
10620 342 91 26 TVCABLE BOGOTA
22047 322 254 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima 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
20299 236 33 29 NEWCOM AMERICAS
28573 228 322 23 NET Servicos de Comunicao S.A
23216 225 17 47 RAMtelecom Telecomunicaciones
6503 215 180 85 AVANTEL, S.A.
19169 193 12 20 Telconet
10834 192 76 40 ADVANCE TELECOMUNICACIONES S.
21826 187 33 48 INTERCABLE
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 202 34 3 EgyNet
6713 145 135 11 Itissalat Al-MAGHRIB
2018 142 268 114 Tertiary Education Network
33783 141 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 83 84 4 Nile Online
23889 77 24 16 MAURITIUS TELECOM
29571 77 13 7 Ci Telecom Autonomous system
2905 76 174 73 The Internetworking Company o
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 44 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 1210 1194 Cable One
9498 1096 1035 BHARTI BT INTERNET LTD.
18566 1040 1030 Covad Communications
4323 1389 1027 Time Warner Telecom
6478 1095 960 AT&T Worldnet Services
8151 1149 931 UniNet S.A. de C.V.
17488 960 873 Hathway IP Over Cable Interne
22773 838 780 Cox Communications, Inc.
19262 868 717 Verizon Global Networks
9583 1113 677 Sify Limited
5668 665 646 CenturyTel Internet Holdings,
9829 590 579 BSNL National Internet Backbo
6517 607 566 Yipes Communications, Inc.
4134 859 553 CHINANET-BACKBONE
18101 609 549 Reliance Infocom Ltd Internet
4780 591 548 Digital United Inc.
15270 601 546 PaeTec.net -a division of Pae
11830 545 536 Instituto Costarricense de El
2386 1353 530 AT&T Data Communications Serv
19916 563 521 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D
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
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
/13:271 /14:486 /15:971 /16:9735 /17:4212 /18:6939
/19:14877 /20:17095 /21:16137 /22:20358 /23:21426 /24:127588
/25:883 /26:1096 /27:558 /28:102 /29:8 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1200 1210 Cable One
6478 1094 1095 AT&T Worldnet Services
2386 1048 1353 AT&T Data Communications Serv
18566 1021 1040 Covad Communications
9583 958 1113 Sify Limited
7011 888 1003 Citizens Utilities
4755 884 1520 Videsh Sanchar Nigam Ltd. Aut
23577 807 816 Korea Telecom (ATM-MPLS)
7018 802 1467 AT&T WorldNet Services
17488 775 960 Hathway IP Over Cable Interne
9498 769 1096 BHARTI BT INTERNET LTD.
6197 728 968 BellSouth Network Solutions,
4766 617 833 Korea Telecom (KIX)
4323 596 1389 Time Warner Telecom
6517 570 607 Yipes Communications, Inc.
15270 561 601 PaeTec.net -a division of Pae
19916 558 563 OLM LLC
5668 521 665 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 8:97 12:1938 13:2 15:21 16:3
17:6 18:14 20:35 24:1009 25:1 31:1
32:60 33:4 38:381 40:65 41:440 44:2
47:8 52:3 55:3 56:3 57:22 58:504
59:413 60:405 61:981 62:1048 63:1980 64:3340
65:2365 66:3615 67:1058 68:637 69:2078 70:468
71:105 72:1464 73:7 74:786 75:173 76:177
77:491 78:435 79:65 80:890 81:783 82:564
83:351 84:523 85:928 86:368 87:595 88:289
89:1091 90:39 91:903 92:97 93:18 96:2
97:7 98:30 114:1 115:1 116:485 117:241
118:61 119:88 121:388 122:669 123:248 124:769
125:1062 128:310 129:198 130:125 131:390 132:68
133:9 134:188 135:31 136:215 137:97 138:149
139:90 140:500 141:120 142:374 143:265 144:322
145:51 146:336 147:128 148:481 149:188 150:115
151:131 152:95 153:127 154:11 155:279 156:196
157:246 158:164 159:212 160:196 161:98 162:200
163:187 164:561 165:420 166:291 167:310 168:570
169:129 170:428 171:28 172:3 173:1 189:140
190:1333 192:5746 193:4065 194:3245 195:2312 196:959
198:3806 199:3208 200:5406 201:1278 202:7525 203:7891
204:3960 205:2048 206:2425 207:2754 208:3094 209:3605
210:2640 211:1115 212:1268 213:1608 214:437 215:46
216:4140 217:1236 218:331 219:406 220:1010 221:410
222:295
End of report
