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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 12 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/12/0400
Analysis Summary
----------------
BGP routing table entries examined: 230466
Prefixes after maximum aggregation: 120428
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 112065
Total ASes present in the Internet Routing Table: 26172
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22782
Origin ASes announcing only one prefix: 11092
Transit ASes present in the Internet Routing Table: 3390
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (43329) 20
Prefixes from unregistered ASNs in the Routing Table: 19
Unregistered ASNs in the Routing Table: 16
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1757984480
Equivalent to 104 /8s, 200 /16s and 182 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 122286
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53806
Total APNIC prefixes after maximum aggregation: 20901
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50728
Unique aggregates announced from the APNIC address blocks: 22538
APNIC Region origin ASes present in the Internet Routing Table: 3050
APNIC Prefixes per ASN: 16.63
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 466
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313536160
Equivalent to 18 /8s, 176 /16s and 46 /24s
Percentage of available APNIC address space announced: 77.7
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, 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: 108912
Total ARIN prefixes after maximum aggregation: 63018
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80211
Unique aggregates announced from the ARIN address blocks: 31946
ARIN Region origin ASes present in the Internet Routing Table: 11805
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4512
ARIN Region transit ASes present in the Internet Routing Table: 1090
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 343637760
Equivalent to 20 /8s, 123 /16s and 127 /24s
Percentage of available ARIN address space announced: 75.9
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: 48220
Total RIPE prefixes after maximum aggregation: 31000
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44631
Unique aggregates announced from the RIPE address blocks: 29519
RIPE Region origin ASes present in the Internet Routing Table: 10168
RIPE Prefixes per ASN: 4.39
RIPE Region origin ASes announcing only one prefix: 5421
RIPE Region transit ASes present in the Internet Routing Table: 1620
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 326554752
Equivalent to 19 /8s, 118 /16s and 212 /24s
Percentage of available RIPE address space announced: 74.9
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
40960-44031
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: 16782
Total LACNIC prefixes after maximum aggregation: 4470
LACNIC Deaggregation factor: 3.75
Prefixes being announced from the LACNIC address blocks: 14880
Unique aggregates announced from the LACNIC address blocks: 7870
LACNIC Region origin ASes present in the Internet Routing Table: 864
LACNIC Prefixes per ASN: 17.22
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 146
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42219520
Equivalent to 2 /8s, 132 /16s and 56 /24s
Percentage of available LACNIC address space announced: 62.9
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2733
Total AfriNIC prefixes after maximum aggregation: 1027
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 2295
Unique aggregates announced from the AfriNIC address blocks: 1333
AfriNIC Region origin ASes present in the Internet Routing Table: 207
AfriNIC Prefixes per ASN: 11.09
AfriNIC Region origin ASes announcing only one prefix: 70
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7455744
Equivalent to 0 /8s, 113 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 22.2
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 1359 383 69 Videsh Sanchar Nigam Ltd. Aut
9583 1124 81 414 Sify Limited
4134 1076 11220 292 CHINANET-BACKBONE
9498 1001 532 64 BHARTI BT INTERNET LTD.
4766 809 5441 321 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 792 34 685 Korea Telecom (ATM-MPLS)
7545 723 159 121 TPG Internet Pty Ltd
18101 596 119 50 Reliance Infocom Ltd Internet
4812 547 974 95 China Telecom (Shanghai)
1221 535 1950 416 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 484 778 115 CNCGROUP IP network: China169
9443 467 122 77 Primus Telecommunications
4802 438 117 154 Wantree Development
7474 378 216 266 SingTel Optus Pty Ltd
17974 373 130 13 PT TELEKOMUNIKASI INDONESIA
4837 366 5104 167 chinanet IDC center beijing n
9829 359 257 10 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1476 6074 995 AT&T WorldNet Services
4323 1322 990 370 Time Warner Telecom
2386 1211 636 732 AT&T Data Communications Serv
11492 1145 112 15 Cable One
6478 1135 326 164 AT&T Worldnet Services
6197 1033 718 509 BellSouth Network Solutions,
18566 1023 288 9 Covad Communications
174 973 6780 861 Cogent Communications
7011 921 279 549 Citizens Utilities
701 871 6573 678 UUNET Technologies, Inc.
20115 817 751 436 Charter Communications
1239 804 2719 566 Sprint
19262 774 2745 183 Verizon Global Networks
22773 766 2149 50 Cox Communications, Inc.
209 746 3835 586 Qwest
5668 639 176 23 CenturyTel Internet Holdings,
3356 619 10812 353 Level 3 Communications, LLC
6517 590 165 34 Yipes Communications, Inc.
852 578 1095 362 Telus Advanced Communications
15270 575 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 494 1923 396 UUNET - Commercial IP service
24863 367 57 40 LINKdotNET AS number
9116 351 168 26 Goldenlines main autonomous s
3301 317 1457 296 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
6746 289 130 265 Dynamic Network Technologies,
680 267 2045 257 DFN-IP service G-WiN
8551 265 252 37 Bezeq International
8708 262 420 241 Romania Data Systems S.A.
3215 258 2424 98 France Telecom Transpac
8220 256 444 239 COLT Telecommunications
3352 229 1866 39 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 223 2839 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 196 1379 176 TDC Tele Danmark
12479 194 578 6 Uni2 Autonomous System
3300 193 172 92 AUCS Communications Services
1257 192 1195 170 SWIPnet Swedish IP Network
3246 186 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 892 1970 214 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 347 165 52 Telecom Argentina Stet-France
6471 330 75 33 ENTEL CHILE S.A.
14522 329 28 7 SatNet S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 284 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11664 275 30 13 Keytech SA
10620 235 65 22 TVCABLE BOGOTA
11556 235 128 3 Cable-Wireless Panama
6147 228 178 24 Telefonica Del Peru
6503 201 170 82 AVANTEL, S.A.
23216 197 17 46 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
21826 171 30 58 INTERCABLE
7738 170 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 285 870 226 The Internet Solution
8452 218 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 76 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 69 24 15 MAURITIUS TELECOM
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 27 16 1 Standard Bank of South Africa
12455 27 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1359 1290 Videsh Sanchar Nigam Ltd. Aut
11492 1145 1130 Cable One
18566 1023 1014 Covad Communications
6478 1135 971 AT&T Worldnet Services
4323 1322 952 Time Warner Telecom
9498 1001 937 BHARTI BT INTERNET LTD.
4134 1076 784 CHINANET-BACKBONE
17488 796 741 Hathway IP Over Cable Interne
22773 766 716 Cox Communications, Inc.
9583 1124 710 Sify Limited
8151 892 678 UniNet S.A. de C.V.
5668 639 616 CenturyTel Internet Holdings,
7545 723 602 TPG Internet Pty Ltd
19262 774 591 Verizon Global Networks
6517 590 556 Yipes Communications, Inc.
18101 596 546 Reliance Infocom Ltd Internet
15270 575 537 PaeTec.net -a division of Pae
6197 1033 524 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43218 UNALLOCATED 78.153.0.0/19 5563 JSV "Information Tec
42343 UNALLOCATED 91.150.0.0/18 16086 Finnet, Finland
43595 UNALLOCATED 91.195.60.0/23 28917 JSC "TRC FIORD"
43633 UNALLOCATED 91.195.90.0/23 35602 ZOL network communic
43139 UNALLOCATED 91.196.148.0/22 13307 RIPE Network Coordin
43553 UNALLOCATED 91.197.120.0/22 6849 JSC UKRTELECOM,
43658 UNALLOCATED 91.197.168.0/22 15772 W-NET Kiev
43668 UNALLOCATED 91.197.184.0/22 13249 PFTS Securities Trad
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
43410 UNALLOCATED 193.39.249.0/24 8402 Corbina telecom
43421 UNALLOCATED 194.33.17.0/24 8879 DTS-Online Autonomou
43421 UNALLOCATED 194.33.18.0/23 8879 DTS-Online Autonomou
41243 UNALLOCATED 195.74.66.0/24 3301 TeliaNet Sweden
64586 PRIVATE 202.165.137.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.142.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
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 /11:37 /12:134
/13:261 /14:471 /15:922 /16:9612 /17:4066 /18:6599
/19:13946 /20:16254 /21:14936 /22:19207 /23:20113 /24:121453
/25:772 /26:1029 /27:514 /28:85 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1137 1145 Cable One
6478 1134 1135 AT&T Worldnet Services
18566 1005 1023 Covad Communications
9583 966 1124 Sify Limited
2386 902 1211 AT&T Data Communications Serv
7018 817 1476 AT&T WorldNet Services
7011 813 921 Citizens Utilities
6197 786 1033 BellSouth Network Solutions,
23577 783 792 Korea Telecom (ATM-MPLS)
4755 740 1359 Videsh Sanchar Nigam Ltd. Aut
9498 673 1001 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
19916 563 568 OLM LLC
6517 556 590 Yipes Communications, Inc.
4323 554 1322 Time Warner Telecom
15270 539 575 PaeTec.net -a division of Pae
5668 514 639 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 502 596 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:79 12:1804 13:1 15:19
16:3 17:3 18:13 20:36 24:967 25:1
32:56 33:3 38:347 40:60 41:319 44:2
47:4 52:4 55:3 56:3 57:24 58:467
59:393 60:367 61:1014 62:932 63:2013 64:3188
65:2370 66:3406 67:795 68:659 69:1971 70:445
71:105 72:1411 73:2 74:646 75:259 76:131
77:343 78:56 80:832 81:826 82:571 83:363
84:617 85:814 86:340 87:489 88:279 89:983
90:24 91:545 96:1 97:6 98:2 116:312
117:182 118:18 121:278 122:604 123:174 124:673
125:991 128:270 129:214 130:138 131:364 132:55
133:9 134:197 135:34 136:189 137:81 138:154
139:73 140:504 141:174 142:383 143:255 144:308
145:46 146:331 147:125 148:412 149:149 150:111
151:159 152:87 153:119 154:3 155:263 156:161
157:217 158:158 159:173 160:117 161:95 162:173
163:181 164:483 165:395 166:275 167:299 168:514
169:122 170:388 171:22 172:2 189:73 190:1089
192:5721 193:3985 194:3195 195:2283 196:971 198:3820
199:3191 200:5284 201:1189 202:7363 203:7704 204:3925
205:1989 206:2415 207:2888 208:2823 209:3489 210:2476
211:1086 212:1330 213:1474 214:414 215:46 216:3987
217:1195 218:329 219:383 220:1022 221:413 222:262
End of report
