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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 17 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 243311
Prefixes after maximum aggregation: 124305
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 118793
Total ASes present in the Internet Routing Table: 27088
Prefixes per ASN: 8.98
Origin-only ASes present in the Internet Routing Table: 23583
Origin ASes announcing only one prefix: 11460
Transit ASes present in the Internet Routing Table: 3505
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (29642) 15
Prefixes from unregistered ASNs in the Routing Table: 7
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: 1802342304
Equivalent to 107 /8s, 109 /16s and 143 /24s
Percentage of available address space announced: 48.6
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 114635
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55995
Total APNIC prefixes after maximum aggregation: 21044
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 53507
Unique aggregates announced from the APNIC address blocks: 23902
APNIC Region origin ASes present in the Internet Routing Table: 3097
APNIC Prefixes per ASN: 17.28
APNIC Region origin ASes announcing only one prefix: 810
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: 325559712
Equivalent to 19 /8s, 103 /16s and 165 /24s
Percentage of available APNIC address space announced: 74.5
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: 114578
Total ARIN prefixes after maximum aggregation: 65257
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 83540
Unique aggregates announced from the ARIN address blocks: 33239
ARIN Region origin ASes present in the Internet Routing Table: 12064
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: 1151
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 357253056
Equivalent to 21 /8s, 75 /16s and 63 /24s
Percentage of available ARIN address space announced: 78.9
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: 50924
Total RIPE prefixes after maximum aggregation: 32257
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 48249
Unique aggregates announced from the RIPE address blocks: 32031
RIPE Region origin ASes present in the Internet Routing Table: 10735
RIPE Prefixes per ASN: 4.49
RIPE Region origin ASes announcing only one prefix: 5644
RIPE Region transit ASes present in the Internet Routing Table: 1666
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 340306176
Equivalent to 20 /8s, 72 /16s and 169 /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: 18423
Total LACNIC prefixes after maximum aggregation: 4620
LACNIC Deaggregation factor: 3.99
Prefixes being announced from the LACNIC address blocks: 16593
Unique aggregates announced from the LACNIC address blocks: 9005
LACNIC Region origin ASes present in the Internet Routing Table: 897
LACNIC Prefixes per ASN: 18.50
LACNIC Region origin ASes announcing only one prefix: 287
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: 15
Number of LACNIC addresses announced to Internet: 47256832
Equivalent to 2 /8s, 209 /16s and 21 /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: 3376
Total AfriNIC prefixes after maximum aggregation: 1109
AfriNIC Deaggregation factor: 3.04
Prefixes being announced from the AfriNIC address blocks: 2520
Unique aggregates announced from the AfriNIC address blocks: 1461
AfriNIC Region origin ASes present in the Internet Routing Table: 218
AfriNIC Prefixes per ASN: 11.56
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 8223232
Equivalent to 0 /8s, 125 /16s and 122 /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 1543 383 71 Videsh Sanchar Nigam Ltd. Aut
9583 1113 82 436 Sify Limited
9498 1097 549 61 BHARTI BT INTERNET LTD.
17488 960 62 87 Hathway IP Over Cable Interne
4134 861 11625 307 CHINANET-BACKBONE
4766 837 5494 339 Korea Telecom (KIX)
23577 816 34 694 Korea Telecom (ATM-MPLS)
18101 608 121 60 Reliance Infocom Ltd Internet
4780 591 308 43 Digital United Inc.
9829 590 449 11 BSNL National Internet Backbo
1221 542 1952 418 Telstra Pty Ltd
4808 530 821 125 CNCGROUP IP network: China169
4812 529 934 86 China Telecom (Shanghai)
4668 521 68 10 LG-EDS Systems Inc.
17676 506 10919 64 Softbank BB Corp.
7545 483 147 92 TPG Internet Pty Ltd
4802 470 128 151 Wantree Development
9443 437 121 71 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 6072 991 AT&T WorldNet Services
4323 1388 1009 363 Time Warner Telecom
2386 1348 668 827 AT&T Data Communications Serv
11492 1211 134 16 Cable One
6478 1096 330 132 AT&T Worldnet Services
18566 1040 296 10 Covad Communications
7011 1004 296 590 Citizens Utilities
6197 968 697 502 BellSouth Network Solutions,
174 967 6831 810 Cogent Communications
701 898 6559 693 UUNET Technologies, Inc.
19262 869 3207 152 Verizon Global Networks
20115 864 794 470 Charter Communications
22773 841 2139 58 Cox Communications, Inc.
3356 834 10907 411 Level 3 Communications, LLC
1239 794 2673 553 Sprint
209 750 3912 600 Qwest
5668 666 177 19 CenturyTel Internet Holdings,
6140 616 110 152 ImpSat
6517 607 150 41 Yipes Communications, Inc.
15270 603 161 56 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 402 1651 367 TDC Tele Danmark
3301 329 1458 301 TeliaNet Sweden
3320 318 6019 264 Deutsche Telekom AG
8452 287 188 7 TEDATA
5462 286 666 27 Telewest Broadband
8551 277 267 41 Bezeq International
8866 277 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 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 2386 217 UniNet S.A. de C.V.
11830 548 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 421 205 54 Telecom Argentina Stet-France
11172 396 115 62 Servicios Alestra S.A de C.V
6471 380 85 37 ENTEL CHILE S.A.
14117 351 23 16 Telefonica del Sur S.A.
10620 350 92 25 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 239 602 25 Telecomunicacoes da Bahia S.A
11556 236 128 4 Cable-Wireless Panama
20299 236 33 29 NEWCOM AMERICAS
28573 227 322 23 NET Servicos de Comunicao S.A
23216 225 17 47 RAMtelecom Telecomunicaciones
6503 220 180 85 AVANTEL, S.A.
10834 193 76 40 ADVANCE TELECOMUNICACIONES S.
19169 193 12 20 Telconet
21826 187 33 48 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 407 60 33 LINKdotNET AS number
3741 287 869 225 The Internet Solution
20858 202 34 3 EgyNet
6713 145 135 11 Itissalat Al-MAGHRIB
2018 142 268 114 Tertiary Education Network
33783 128 9 15 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
15475 88 84 4 Nile Online
24835 88 48 6 RAYA Telecom - Egypt
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 47 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 1211 1195 Cable One
9498 1097 1036 BHARTI BT INTERNET LTD.
18566 1040 1030 Covad Communications
4323 1388 1025 Time Warner Telecom
6478 1096 964 AT&T Worldnet Services
8151 1149 932 UniNet S.A. de C.V.
17488 960 873 Hathway IP Over Cable Interne
22773 841 783 Cox Communications, Inc.
19262 869 717 Verizon Global Networks
9583 1113 677 Sify Limited
5668 666 647 CenturyTel Internet Holdings,
9829 590 579 BSNL National Internet Backbo
6517 607 566 Yipes Communications, Inc.
4134 861 554 CHINANET-BACKBONE
18101 608 548 Reliance Infocom Ltd Internet
4780 591 548 Digital United Inc.
15270 603 547 PaeTec.net -a division of Pae
11830 548 539 Instituto Costarricense de El
2386 1348 521 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
33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner 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
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 /14:489 /15:971 /16:9737 /17:4213 /18:6937
/19:14883 /20:17104 /21:16199 /22:20369 /23:21497 /24:127758
/25:879 /26:1104 /27:558 /28:108 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1201 1211 Cable One
6478 1095 1096 AT&T Worldnet Services
2386 1042 1348 AT&T Data Communications Serv
18566 1021 1040 Covad Communications
9583 958 1113 Sify Limited
4755 907 1543 Videsh Sanchar Nigam Ltd. Aut
7011 889 1004 Citizens Utilities
23577 807 816 Korea Telecom (ATM-MPLS)
7018 805 1467 AT&T WorldNet Services
17488 775 960 Hathway IP Over Cable Interne
9498 769 1097 BHARTI BT INTERNET LTD.
6197 728 968 BellSouth Network Solutions,
4766 620 837 Korea Telecom (KIX)
4323 594 1388 Time Warner Telecom
6517 570 607 Yipes Communications, Inc.
15270 562 603 PaeTec.net -a division of Pae
19916 558 563 OLM LLC
5668 522 666 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 502 608 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:98 12:1943 13:2 15:21 16:3
17:6 18:14 20:35 24:1011 25:1 31:1
32:61 33:4 38:380 40:65 41:452 44:2
47:8 52:3 55:3 56:3 57:22 58:506
59:416 60:407 61:976 62:1055 63:1976 64:3330
65:2372 66:3612 67:1051 68:636 69:2088 70:464
71:105 72:1461 73:7 74:783 75:173 76:179
77:471 78:442 79:63 80:887 81:788 82:576
83:354 84:525 85:946 86:372 87:598 88:291
89:1088 90:41 91:916 92:104 93:18 96:2
97:7 98:31 114:1 115:1 116:487 117:241
118:61 119:91 121:398 122:672 123:254 124:767
125:1064 128:306 129:199 130:125 131:391 132:67
133:9 134:187 135:31 136:215 137:97 138:156
139:90 140:498 141:106 142:375 143:266 144:307
145:51 146:331 147:128 148:481 149:188 150:115
151:132 152:95 153:127 154:11 155:286 156:196
157:246 158:163 159:212 160:204 161:95 162:199
163:187 164:562 165:420 166:292 167:311 168:571
169:132 170:427 171:28 172:3 173:1 189:141
190:1345 192:5746 193:4067 194:3247 195:2314 196:957
198:3808 199:3211 200:5440 201:1280 202:7502 203:7895
204:3964 205:2060 206:2425 207:2745 208:3100 209:3613
210:2643 211:1136 212:1271 213:1614 214:444 215:46
216:4140 217:1234 218:332 219:406 220:1007 221:409
222:296
End of report
