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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 12 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 207127
Prefixes after maximum aggregation: 112222
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 100267
Total ASes present in the Internet Routing Table: 24093
Origin-only ASes present in the Internet Routing Table: 20999
Origin ASes announcing only one prefix: 10156
Transit ASes present in the Internet Routing Table: 3094
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 1
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1654197324
Equivalent to 98 /8s, 153 /16s and 12 /24s
Percentage of available address space announced: 44.6
Percentage of allocated address space announced: 63.3
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 105424
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45999
Total APNIC prefixes after maximum aggregation: 18621
APNIC Deaggregation factor: 2.47
Prefixes being announced from the APNIC address blocks: 43558
Unique aggregates announced from the APNIC address blocks: 18388
APNIC Region origin ASes present in the Internet Routing Table: 2813
APNIC Region origin ASes announcing only one prefix: 792
APNIC Region transit ASes present in the Internet Routing Table: 420
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 275180512
Equivalent to 16 /8s, 102 /16s and 235 /24s
Percentage of available APNIC address space announced: 86.0
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, 121/8, 122/7, 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: 102204
Total ARIN prefixes after maximum aggregation: 60589
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75370
Unique aggregates announced from the ARIN address blocks: 28749
ARIN Region origin ASes present in the Internet Routing Table: 11261
ARIN Region origin ASes announcing only one prefix: 4312
ARIN Region transit ASes present in the Internet Routing Table: 1038
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 312048000
Equivalent to 18 /8s, 153 /16s and 121 /24s
Percentage of available ARIN address space announced: 68.9
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: 42908
Total RIPE prefixes after maximum aggregation: 28065
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39679
Unique aggregates announced from the RIPE address blocks: 26427
RIPE Region origin ASes present in the Internet Routing Table: 9013
RIPE Region origin ASes announcing only one prefix: 4748
RIPE Region transit ASes present in the Internet Routing Table: 1444
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 283878308
Equivalent to 16 /8s, 235 /16s and 163 /24s
Percentage of available RIPE address space announced: 76.9
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13490
Total LACNIC prefixes after maximum aggregation: 3995
LACNIC Deaggregation factor: 3.38
Prefixes being announced from the LACNIC address blocks: 11578
Unique aggregates announced from the LACNIC address blocks: 7140
LACNIC Region origin ASes present in the Internet Routing Table: 754
LACNIC Region origin ASes announcing only one prefix: 251
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36101120
Equivalent to 2 /8s, 38 /16s and 220 /24s
Percentage of available LACNIC address space announced: 53.8
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: 2525
Total AfriNIC prefixes after maximum aggregation: 952
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 1766
Unique aggregates announced from the AfriNIC address blocks: 1130
AfriNIC Region origin ASes present in the Internet Routing Table: 173
AfriNIC Region origin ASes announcing only one prefix: 53
AfriNIC Region transit ASes present in the Internet Routing Table: 31
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5348096
Equivalent to 0 /8s, 81 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 15.9
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
4134 1263 8657 263 CHINANET-BACKBONE
4755 1042 384 67 Videsh Sanchar Nigam Ltd. Aut
9583 1024 99 65 Sify Limited
9498 917 467 65 BHARTI BT INTERNET LTD.
23577 768 34 697 KRNIC
4766 761 4946 312 Korea Telecom (KIX)
1221 575 1698 446 Telstra Pty Ltd
17488 567 35 22 Hathway IP Over Cable Interne
7545 559 126 74 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 498 87 27 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
9942 439 85 131 COMindico Australia
4812 436 759 69 China Telecom (Shanghai)
17974 365 129 12 PT TELEKOMUNIKASI INDONESIA
4802 360 86 150 Wantree Development
17557 360 35 169 Pakistan Telecom
17849 353 33 93 Telecommunications Technology
2907 332 1749 309 SINET Japan
4837 332 3943 145 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1539 6161 1000 AT&T WorldNet Services
2386 1101 585 733 AT&T Data Communications Serv
4323 1065 821 300 Time Warner Telecom
6197 1022 639 500 BellSouth Network Solutions,
18566 983 272 8 Covad Communications
174 934 6789 866 Cogent Communications
701 934 6676 749 UUNET Technologies, Inc.
11492 907 99 14 Cable One
1239 825 2730 575 Sprint
19262 803 2538 182 Verizon Global Networks
20115 770 671 409 Charter Communications
721 749 21837 290 DLA Systems Automation Center
209 721 3748 567 Qwest
22773 715 1744 41 Cox Communications, Inc.
7011 688 209 429 Citizens Utilities
852 607 1093 393 Telus Advanced Communications
5668 569 161 19 CenturyTel Internet Holdings,
19916 567 48 57 OLM LLC
6198 550 519 256 BellSouth Network Solutions,
855 536 250 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1912 425 UUNET - Commercial IP service
3301 306 1199 288 TeliaNet Sweden
3320 296 4993 247 Deutsche Telekom AG
24863 296 45 25 LINKdotNET AS number
8220 271 473 262 COLT Telecommunications
6746 265 93 243 Dynamic Network Technologies,
680 256 2042 250 DFN-IP service G-WiN
8708 234 283 221 Romania Data Systems S.A.
3215 233 2136 96 France Telecom Transpac
1257 215 1069 171 SWIPnet Swedish IP Network
3269 211 2375 74 TELECOM ITALIA
30890 210 19 90 SC Kappa Invexim SRL
3246 208 353 195 Song Networks
5416 206 13 9 BATELCO-BH
8551 196 197 24 Bezeq International
3300 176 171 89 AUCS Communications Services
3352 176 1767 31 Ibernet, Internet Access Netw
12479 175 578 6 Uni2 Autonomous System
20858 175 34 3 This AS will be used to conne
786 171 1795 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 827 2015 204 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 386 104 74 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
14117 258 16 13 Telefonica del Sur S.A.
6471 255 74 31 ENTEL CHILE S.A.
7303 228 102 36 Telecom Argentina Stet-France
6147 225 182 20 Telefonica Del Peru
6503 216 170 93 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 156 20 35 INTERCABLE
23216 146 19 43 RAMtelecom Telecomunicaciones
7910 145 10 32 ANDINET ON LINE
18822 145 9 10 TELEFONICA MANQUEHUE
19429 141 84 35 E.T.B.
19169 139 9 22 Telconet
14522 134 21 8 SatNet S.A.
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 289 868 231 The Internet Solution
8452 230 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 109 6 4 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 84 175 73 The Internetworking Company o
2561 60 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 55 13 15 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
15804 27 2 1 AS of The Way Out Internet So
33776 27 2 5 Starcomms Nigeria Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1263 1000 CHINANET-BACKBONE
4755 1042 975 Videsh Sanchar Nigam Ltd. Aut
18566 983 975 Covad Communications
9583 1024 959 Sify Limited
11492 907 893 Cable One
9498 917 852 BHARTI BT INTERNET LTD.
4323 1065 765 Time Warner Telecom
22773 715 674 Cox Communications, Inc.
8151 827 623 UniNet S.A. de C.V.
19262 803 621 Verizon Global Networks
5668 569 550 CenturyTel Internet Holdings,
17488 567 545 Hathway IP Over Cable Interne
6197 1022 522 BellSouth Network Solutions,
19916 567 510 OLM LLC
7545 559 485 TPG Internet Pty Ltd
18101 498 471 Reliance Infocom Ltd Internet
855 536 463 Canadian Research Network
15270 497 463 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
721 749 459 DLA Systems Automation Center
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.172.0.0/19 721 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 /8:20 /9:10 /10:13 /11:30 /12:116
/13:228 /14:409 /15:802 /16:9101 /17:3633 /18:5923
/19:12903 /20:14496 /21:12922 /22:16466 /23:17914 /24:110507
/25:605 /26:449 /27:357 /28:71 /29:42 /30:86
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 966 983 Covad Communications
11492 893 907 Cable One
9583 853 1024 Sify Limited
7018 832 1539 AT&T WorldNet Services
2386 824 1101 AT&T Data Communications Serv
6197 795 1022 BellSouth Network Solutions,
23577 754 768 KRNIC
7011 593 688 Citizens Utilities
9498 578 917 BHARTI BT INTERNET LTD.
4766 569 761 Korea Telecom (KIX)
19916 562 567 OLM LLC
4755 483 1042 Videsh Sanchar Nigam Ltd. Aut
15270 465 497 PaeTec.net -a division of Pae
5668 439 569 CenturyTel Internet Holdings,
855 433 536 Canadian Research Network
18101 432 498 Reliance Infocom Ltd Internet
1239 411 825 Sprint
33588 396 418 Bresnan Communications, LLC.
17488 390 567 Hathway IP Over Cable Interne
6198 389 550 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:62 9:1 12:1653 13:1 15:15
16:3 17:3 18:5 20:36 24:870 25:1
32:55 38:273 40:57 41:56 44:2 47:10
52:4 53:1 55:1 56:3 57:25 58:278
59:365 60:190 61:959 62:1062 63:1894 64:3177
65:2298 66:3081 67:694 68:644 69:1706 70:407
71:129 72:1124 74:125 75:52 76:20 80:814
81:787 82:637 83:350 84:487 85:774 86:436
87:453 88:256 89:734 90:2 91:129 97:1
121:117 122:55 123:24 124:518 125:758 128:315
129:219 130:126 131:315 132:49 133:9 134:183
135:44 136:181 137:114 138:189 139:54 140:519
141:135 142:348 143:212 144:263 145:67 146:320
147:138 148:363 149:189 150:113 151:117 152:90
153:119 154:5 155:245 156:156 157:152 158:166
159:141 160:99 161:99 162:226 163:158 164:236
165:237 166:241 167:281 168:479 169:121 170:365
171:13 172:1 189:49 190:328 192:5748 193:3621
194:2891 195:2189 196:913 198:3769 199:3280 200:4609
201:950 202:7070 203:7253 204:3954 205:2106 206:2429
207:2895 208:2369 209:3559 210:2283 211:858 212:1294
213:1424 214:390 215:39 216:4084 217:1184 218:347
219:257 220:838 221:371 222:261
End of report
Report Website: http://thyme.apnic.net
