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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 11 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 242896
Prefixes after maximum aggregation: 124157
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 118587
Total ASes present in the Internet Routing Table: 27048
Prefixes per ASN: 8.98
Origin-only ASes present in the Internet Routing Table: 23548
Origin ASes announcing only one prefix: 11452
Transit ASes present in the Internet Routing Table: 3500
Transit-only ASes present in the Internet Routing Table: 74
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: 8
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: 1799767328
Equivalent to 107 /8s, 70 /16s and 69 /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: 114318
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55819
Total APNIC prefixes after maximum aggregation: 20972
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 53332
Unique aggregates announced from the APNIC address blocks: 23796
APNIC Region origin ASes present in the Internet Routing Table: 3087
APNIC Prefixes per ASN: 17.28
APNIC Region origin ASes announcing only one prefix: 805
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: 325152672
Equivalent to 19 /8s, 97 /16s and 111 /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: 114321
Total ARIN prefixes after maximum aggregation: 65192
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 83331
Unique aggregates announced from the ARIN address blocks: 33183
ARIN Region origin ASes present in the Internet Routing Table: 12059
ARIN Prefixes per ASN: 6.91
ARIN Region origin ASes announcing only one prefix: 4645
ARIN Region transit ASes present in the Internet Routing Table: 1155
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 355507136
Equivalent to 21 /8s, 48 /16s and 155 /24s
Percentage of available ARIN address space announced: 78.5
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: 50858
Total RIPE prefixes after maximum aggregation: 32246
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 48179
Unique aggregates announced from the RIPE address blocks: 31943
RIPE Region origin ASes present in the Internet Routing Table: 10713
RIPE Prefixes per ASN: 4.50
RIPE Region origin ASes announcing only one prefix: 5646
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: 340021504
Equivalent to 20 /8s, 68 /16s and 81 /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: 18521
Total LACNIC prefixes after maximum aggregation: 4628
LACNIC Deaggregation factor: 4.00
Prefixes being announced from the LACNIC address blocks: 16672
Unique aggregates announced from the LACNIC address blocks: 9043
LACNIC Region origin ASes present in the Internet Routing Table: 897
LACNIC Prefixes per ASN: 18.59
LACNIC Region origin ASes announcing only one prefix: 288
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 47211264
Equivalent to 2 /8s, 208 /16s and 99 /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: 3355
Total AfriNIC prefixes after maximum aggregation: 1101
AfriNIC Deaggregation factor: 3.05
Prefixes being announced from the AfriNIC address blocks: 2503
Unique aggregates announced from the AfriNIC address blocks: 1460
AfriNIC Region origin ASes present in the Internet Routing Table: 217
AfriNIC Prefixes per ASN: 11.53
AfriNIC Region origin ASes announcing only one prefix: 68
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: 14
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 1517 383 71 Videsh Sanchar Nigam Ltd. Aut
9583 1112 82 436 Sify Limited
9498 1101 549 62 BHARTI BT INTERNET LTD.
17488 957 62 86 Hathway IP Over Cable Interne
4134 859 11601 305 CHINANET-BACKBONE
4766 834 5494 339 Korea Telecom (KIX)
23577 813 34 691 Korea Telecom (ATM-MPLS)
18101 609 121 60 Reliance Infocom Ltd Internet
4780 590 308 42 Digital United Inc.
9829 590 449 11 BSNL National Internet Backbo
1221 542 1952 419 Telstra Pty Ltd
4812 535 938 83 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 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 1473 6073 997 AT&T WorldNet Services
4323 1388 1011 361 Time Warner Telecom
2386 1350 667 820 AT&T Data Communications Serv
11492 1210 134 16 Cable One
6478 1095 330 135 AT&T Worldnet Services
18566 1039 296 10 Covad Communications
7011 1003 296 589 Citizens Utilities
174 970 6832 814 Cogent Communications
6197 968 697 502 BellSouth Network Solutions,
701 897 6559 695 UUNET Technologies, Inc.
19262 863 3156 171 Verizon Global Networks
20115 861 793 467 Charter Communications
22773 837 2140 59 Cox Communications, Inc.
3356 835 10907 412 Level 3 Communications, LLC
1239 795 2672 552 Sprint
209 751 3912 600 Qwest
5668 664 177 19 CenturyTel Internet Holdings,
6140 608 110 151 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 402 1651 367 TDC Tele Danmark
3301 327 1458 298 TeliaNet Sweden
3320 317 6019 263 Deutsche Telekom AG
8452 288 188 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 270 420 241 Romania Data Systems S.A.
5462 267 666 27 Telewest Broadband
8220 242 422 228 COLT Telecommunications
3352 238 1948 40 Ibernet, Internet Access Netw
3269 231 3037 68 TELECOM ITALIA
9155 226 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
9116 196 184 28 Goldenlines main autonomous s
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1149 2390 219 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.
14522 374 36 8 SatNet S.A.
14117 351 23 16 Telefonica del Sur S.A.
10620 343 91 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 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 221 33 29 NEWCOM AMERICAS
6503 216 180 85 AVANTEL, S.A.
19169 195 13 22 Telconet
10834 194 76 40 ADVANCE TELECOMUNICACIONES S.
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 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
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 41 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 1101 1039 BHARTI BT INTERNET LTD.
18566 1039 1029 Covad Communications
4323 1388 1027 Time Warner Telecom
6478 1095 960 AT&T Worldnet Services
8151 1149 930 UniNet S.A. de C.V.
17488 957 871 Hathway IP Over Cable Interne
22773 837 778 Cox Communications, Inc.
19262 863 692 Verizon Global Networks
9583 1112 676 Sify Limited
5668 664 645 CenturyTel Internet Holdings,
9829 590 579 BSNL National Internet Backbo
6517 602 560 Yipes Communications, Inc.
4134 859 554 CHINANET-BACKBONE
18101 609 549 Reliance Infocom Ltd Internet
4780 590 548 Digital United Inc.
15270 600 545 PaeTec.net -a division of Pae
11830 545 536 Instituto Costarricense de El
2386 1350 530 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
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 /15:969 /16:9733 /17:4209 /18:6943
/19:14863 /20:17086 /21:16125 /22:20346 /23:21432 /24:127583
/25:868 /26:1095 /27:556 /28:101 /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 1044 1350 AT&T Data Communications Serv
18566 1020 1039 Covad Communications
9583 957 1112 Sify Limited
7011 888 1003 Citizens Utilities
4755 882 1517 Videsh Sanchar Nigam Ltd. Aut
7018 808 1473 AT&T WorldNet Services
23577 804 813 Korea Telecom (ATM-MPLS)
9498 773 1101 BHARTI BT INTERNET LTD.
17488 772 957 Hathway IP Over Cable Interne
6197 728 968 BellSouth Network Solutions,
4766 618 834 Korea Telecom (KIX)
4323 593 1388 Time Warner Telecom
6517 565 602 Yipes Communications, Inc.
15270 560 600 PaeTec.net -a division of Pae
19916 558 563 OLM LLC
5668 521 664 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 12:1938 13:2 15:21 16:3
17:6 18:14 20:35 24:1009 25:1 31:1
32:61 33:4 38:380 40:65 41:439 44:2
47:8 52:3 55:3 56:3 57:22 58:506
59:415 60:405 61:982 62:1070 63:1981 64:3330
65:2358 66:3586 67:1055 68:640 69:2075 70:467
71:105 72:1460 73:7 74:784 75:173 76:175
77:493 78:433 79:66 80:886 81:792 82:564
83:356 84:522 85:926 86:365 87:591 88:289
89:1083 90:39 91:895 92:86 93:2 96:2
97:7 98:29 114:1 115:1 116:477 117:240
118:62 119:89 121:385 122:643 123:226 124:759
125:1058 128:310 129:198 130:125 131:389 132:68
133:9 134:187 135:31 136:215 137:85 138:149
139:90 140:498 141:130 142:375 143:272 144:323
145:51 146:335 147:129 148:482 149:188 150:116
151:131 152:95 153:127 154:11 155:278 156:196
157:245 158:165 159:212 160:195 161:99 162:199
163:189 164:560 165:420 166:291 167:310 168:566
169:130 170:427 171:28 172:3 173:1 189:138
190:1431 192:5747 193:4061 194:3247 195:2317 196:959
198:3800 199:3222 200:5476 201:1309 202:7475 203:7889
204:3963 205:2048 206:2424 207:2753 208:3085 209:3608
210:2638 211:1118 212:1266 213:1609 214:448 215:46
216:4124 217:1239 218:330 219:403 220:1005 221:411
222:295
End of report
