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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 02 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217040
Prefixes after maximum aggregation: 115984
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 105688
Total ASes present in the Internet Routing Table: 24771
Origin-only ASes present in the Internet Routing Table: 21571
Origin ASes announcing only one prefix: 10424
Transit ASes present in the Internet Routing Table: 3200
Transit-only ASes present in the Internet Routing Table: 72
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: 28
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1697066120
Equivalent to 101 /8s, 39 /16s and 44 /24s
Percentage of available address space announced: 45.8
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 113108
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49781
Total APNIC prefixes after maximum aggregation: 20056
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 46872
Unique aggregates announced from the APNIC address blocks: 21082
APNIC Region origin ASes present in the Internet Routing Table: 2908
APNIC Region origin ASes announcing only one prefix: 781
APNIC Region transit ASes present in the Internet Routing Table: 432
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 290581184
Equivalent to 17 /8s, 81 /16s and 234 /24s
Percentage of available APNIC address space announced: 72.0
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, 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: 105409
Total ARIN prefixes after maximum aggregation: 61614
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77445
Unique aggregates announced from the ARIN address blocks: 30085
ARIN Region origin ASes present in the Internet Routing Table: 11444
ARIN Region origin ASes announcing only one prefix: 4389
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 324025728
Equivalent to 19 /8s, 80 /16s and 61 /24s
Percentage of available ARIN address space announced: 71.5
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: 44828
Total RIPE prefixes after maximum aggregation: 29223
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41401
Unique aggregates announced from the RIPE address blocks: 27709
RIPE Region origin ASes present in the Internet Routing Table: 9381
RIPE Region origin ASes announcing only one prefix: 4939
RIPE Region transit ASes present in the Internet Routing Table: 1517
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 296716032
Equivalent to 17 /8s, 175 /16s and 135 /24s
Percentage of available RIPE address space announced: 73.7
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, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 14466
Total LACNIC prefixes after maximum aggregation: 4103
LACNIC Deaggregation factor: 3.53
Prefixes being announced from the LACNIC address blocks: 12551
Unique aggregates announced from the LACNIC address blocks: 7119
LACNIC Region origin ASes present in the Internet Routing Table: 780
LACNIC Region origin ASes announcing only one prefix: 257
LACNIC Region transit ASes present in the Internet Routing Table: 138
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38557952
Equivalent to 2 /8s, 76 /16s and 89 /24s
Percentage of available LACNIC address space announced: 57.5
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: 2526
Total AfriNIC prefixes after maximum aggregation: 982
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1881
Unique aggregates announced from the AfriNIC address blocks: 1162
AfriNIC Region origin ASes present in the Internet Routing Table: 185
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5440256
Equivalent to 0 /8s, 83 /16s and 3 /24s
Percentage of available AfriNIC address space announced: 16.2
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
4134 1286 9438 280 CHINANET-BACKBONE
4755 1173 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1105 78 377 Sify Limited
9498 967 469 70 BHARTI BT INTERNET LTD.
23577 787 35 712 Korea Telecom (ATM-MPLS)
4766 784 4943 313 Korea Telecom (KIX)
17488 626 41 32 Hathway IP Over Cable Interne
7545 602 142 78 TPG Internet Pty Ltd
1221 579 1973 453 Telstra Pty Ltd
18101 538 116 27 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4668 502 68 10 LG-EDS Systems Inc.
9443 454 111 74 Primus Telecommunications
4812 451 791 72 China Telecom (Shanghai)
7474 380 215 259 SingTel Optus Pty Ltd
17557 368 35 174 Pakistan Telecom
4802 360 86 149 Wantree Development
4837 343 4484 154 chinanet IDC center beijing n
2907 338 1749 311 SINET Japan
17974 332 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1492 6111 979 AT&T WorldNet Services
4323 1268 1004 351 Time Warner Telecom
2386 1089 558 731 AT&T Data Communications Serv
6478 1079 331 153 AT&T Worldnet Services
6197 1032 680 500 BellSouth Network Solutions,
11492 1017 102 12 Cable One
18566 999 288 9 Covad Communications
701 951 6660 726 UUNET Technologies, Inc.
174 942 6791 860 Cogent Communications
1239 820 2715 571 Sprint
20115 810 720 425 Charter Communications
7011 780 225 462 Citizens Utilities
209 722 3733 572 Qwest
19262 722 2582 162 Verizon Global Networks
22773 693 1871 42 Cox Communications, Inc.
721 618 21756 274 DLA Systems Automation Center
852 590 1095 377 Telus Advanced Communications
5668 580 160 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
6198 566 574 263 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 520 1893 414 UUNET - Commercial IP service
24863 338 46 31 LINKdotNET AS number
3301 310 1199 289 TeliaNet Sweden
3320 302 4993 250 Deutsche Telekom AG
6746 272 95 250 Dynamic Network Technologies,
8220 268 468 258 COLT Telecommunications
680 258 2044 251 DFN-IP service G-WiN
5416 254 16 12 BATELCO-BH
3215 239 2256 92 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
1257 222 1180 168 SWIPnet Swedish IP Network
3269 215 2583 72 TELECOM ITALIA
3246 208 356 197 Song Networks
8551 206 196 30 Bezeq International
30890 206 17 96 SC Kappa Invexim SRL
20858 199 34 4 EgyNet
3352 195 1795 36 Ibernet, Internet Access Netw
12479 185 578 6 Uni2 Autonomous System
3300 184 171 89 AUCS Communications Services
786 175 1795 175 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1059 2009 213 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 361 116 66 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
7303 265 143 24 Telecom Argentina Stet-France
6471 256 74 30 ENTEL CHILE S.A.
14117 241 17 14 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 230 182 20 Telefonica Del Peru
6503 213 171 84 AVANTEL, S.A.
20299 182 25 25 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
10620 163 48 21 TVCABLE BOGOTA
21826 156 28 59 INTERCABLE
23216 156 19 42 RAMtelecom Telecomunicaciones
7910 153 11 31 ANDINET ON LINE
19429 148 91 38 E.T.B.
14522 147 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 207 60 6 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 128 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 111 6 5 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 61 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 13 23 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
33776 27 2 5 Starcomms Nigeria Limited
21280 26 4 4 Swift Global Kenya Ltd.Is an
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1173 1096 Videsh Sanchar Nigam Ltd. Aut
4134 1286 1006 CHINANET-BACKBONE
11492 1017 1005 Cable One
18566 999 990 Covad Communications
6478 1079 926 AT&T Worldnet Services
4323 1268 917 Time Warner Telecom
9498 967 897 BHARTI BT INTERNET LTD.
8151 1059 846 UniNet S.A. de C.V.
9583 1105 728 Sify Limited
22773 693 651 Cox Communications, Inc.
17488 626 594 Hathway IP Over Cable Interne
5668 580 563 CenturyTel Internet Holdings,
19262 722 560 Verizon Global Networks
6197 1032 532 BellSouth Network Solutions,
7545 602 524 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 538 511 Reliance Infocom Ltd Internet
855 565 494 Canadian Research Network
4668 502 492 LG-EDS Systems Inc.
7029 563 482 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 60.253.128.0/24 7497 Computer Network Inf
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65412 PRIVATE 124.254.29.0/24 7497 Computer Network Inf
65412 PRIVATE 124.254.45.0/24 7497 Computer Network Inf
65412 PRIVATE 124.254.58.0/23 7497 Computer Network Inf
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
65458 PRIVATE 211.161.52.0/23 7497 Computer Network Inf
65458 PRIVATE 211.161.54.0/23 7497 Computer Network Inf
65458 PRIVATE 211.161.56.0/22 7497 Computer Network Inf
65458 PRIVATE 211.162.48.0/21 7497 Computer Network Inf
65458 PRIVATE 211.162.56.0/23 7497 Computer Network Inf
65458 PRIVATE 211.162.58.0/23 7497 Computer Network Inf
65458 PRIVATE 211.162.60.0/22 7497 Computer Network Inf
65458 PRIVATE 211.162.240.0/21 7497 Computer Network Inf
65458 PRIVATE 211.162.248.0/22 7497 Computer Network Inf
65458 PRIVATE 211.162.252.0/22 7497 Computer Network Inf
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
65412 PRIVATE 220.113.17.0/24 7497 Computer Network Inf
65458 PRIVATE 220.113.48.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.56.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.224.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.232.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.240.0/21 7497 Computer Network Inf
65458 PRIVATE 220.113.248.0/22 7497 Computer Network Inf
65458 PRIVATE 220.113.252.0/22 7497 Computer Network Inf
65458 PRIVATE 220.115.144.0/20 7497 Computer Network Inf
65458 PRIVATE 220.115.160.0/22 7497 Computer Network Inf
65458 PRIVATE 220.115.160.0/19 7497 Computer Network Inf
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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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 /8:19 /9:9 /10:12 /11:32 /12:120
/13:232 /14:442 /15:845 /16:9335 /17:3803 /18:6261
/19:13410 /20:15036 /21:13614 /22:17641 /23:18999 /24:114941
/25:778 /26:811 /27:488 /28:61 /29:40 /30:71
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1070 1079 AT&T Worldnet Services
11492 1003 1017 Cable One
18566 981 999 Covad Communications
9583 945 1105 Sify Limited
7018 813 1492 AT&T WorldNet Services
2386 811 1089 AT&T Data Communications Serv
6197 797 1032 BellSouth Network Solutions,
23577 773 787 Korea Telecom (ATM-MPLS)
7011 683 780 Citizens Utilities
9498 630 967 BHARTI BT INTERNET LTD.
4766 589 784 Korea Telecom (KIX)
4755 569 1173 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 528 1268 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 484 516 PaeTec.net -a division of Pae
855 463 565 Canadian Research Network
18101 462 538 Reliance Infocom Ltd Internet
5668 448 580 CenturyTel Internet Holdings,
17488 448 626 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1793 15:19
16:3 17:3 18:8 20:36 24:934 25:1
32:53 38:293 40:56 41:111 44:2 47:4
52:4 55:1 56:3 57:25 58:353 59:359
60:226 61:894 62:1023 63:1973 64:3095 65:2319
66:3188 67:766 68:638 69:1786 70:489 71:110
72:1240 73:1 74:322 75:172 76:31 77:142
80:819 81:784 82:657 83:376 84:480 85:764
86:382 87:459 88:250 89:874 90:19 91:237
97:1 116:11 117:1 118:1 119:1 120:1
121:165 122:521 123:63 124:756 125:915 128:273
129:224 130:120 131:350 132:51 133:10 134:190
135:37 136:173 137:87 138:193 139:55 140:482
141:143 142:370 143:212 144:282 145:43 146:323
147:148 148:383 149:188 150:115 151:123 152:93
153:120 154:5 155:250 156:152 157:178 158:161
159:151 160:101 161:89 162:235 163:142 164:452
165:400 166:246 167:293 168:500 169:120 170:393
171:15 172:1 189:227 190:547 192:5736 193:3765
194:3055 195:2204 196:912 198:3736 199:3284 200:4612
201:1009 202:7276 203:7404 204:3972 205:2101 206:2416
207:2881 208:2606 209:3597 210:2393 211:931 212:1290
213:1428 214:409 215:38 216:3962 217:1174 218:355
219:294 220:905 221:389 222:272
End of report
Report Website: http://thyme.apnic.net
