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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 23 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 212975
Prefixes after maximum aggregation: 114337
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 103684
Total ASes present in the Internet Routing Table: 24450
Origin-only ASes present in the Internet Routing Table: 21285
Origin ASes announcing only one prefix: 10284
Transit ASes present in the Internet Routing Table: 3165
Transit-only ASes present in the Internet Routing Table: 78
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: 4
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1686191980
Equivalent to 100 /8s, 129 /16s and 63 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 110023
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 48200
Total APNIC prefixes after maximum aggregation: 19372
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 45296
Unique aggregates announced from the APNIC address blocks: 20389
APNIC Region origin ASes present in the Internet Routing Table: 2875
APNIC Region origin ASes announcing only one prefix: 782
APNIC Region transit ASes present in the Internet Routing Table: 427
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 290437088
Equivalent to 17 /8s, 79 /16s and 183 /24s
Percentage of available APNIC address space announced: 71.9
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: 104177
Total ARIN prefixes after maximum aggregation: 61237
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 76154
Unique aggregates announced from the ARIN address blocks: 29527
ARIN Region origin ASes present in the Internet Routing Table: 11362
ARIN Region origin ASes announcing only one prefix: 4361
ARIN Region transit ASes present in the Internet Routing Table: 1058
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 318944128
Equivalent to 19 /8s, 2 /16s and 179 /24s
Percentage of available ARIN address space announced: 70.4
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: 43973
Total RIPE prefixes after maximum aggregation: 28701
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40659
Unique aggregates announced from the RIPE address blocks: 27104
RIPE Region origin ASes present in the Internet Routing Table: 9190
RIPE Region origin ASes announcing only one prefix: 4831
RIPE Region transit ASes present in the Internet Routing Table: 1483
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 291673348
Equivalent to 17 /8s, 98 /16s and 149 /24s
Percentage of available RIPE address space announced: 79.0
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
40960-43007
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: 14048
Total LACNIC prefixes after maximum aggregation: 4062
LACNIC Deaggregation factor: 3.46
Prefixes being announced from the LACNIC address blocks: 12099
Unique aggregates announced from the LACNIC address blocks: 6977
LACNIC Region origin ASes present in the Internet Routing Table: 763
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37560832
Equivalent to 2 /8s, 61 /16s and 34 /24s
Percentage of available LACNIC address space announced: 56.0
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: 2574
Total AfriNIC prefixes after maximum aggregation: 963
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 1892
Unique aggregates announced from the AfriNIC address blocks: 1180
AfriNIC Region origin ASes present in the Internet Routing Table: 181
AfriNIC Region origin ASes announcing only one prefix: 60
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 5419008
Equivalent to 0 /8s, 82 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1275 8720 276 CHINANET-BACKBONE
4755 1121 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1072 77 374 Sify Limited
9498 958 468 66 BHARTI BT INTERNET LTD.
23577 778 35 708 Korea Telecom (ATM-MPLS)
4766 769 4944 310 Korea Telecom (KIX)
17488 598 39 24 Hathway IP Over Cable Interne
7545 585 142 75 TPG Internet Pty Ltd
1221 580 1686 442 Telstra Pty Ltd
18101 522 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 499 779 73 China Telecom (Shanghai)
4668 459 67 12 LG-EDS Systems Inc.
9443 444 111 75 Primus Telecommunications
7474 380 216 259 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 360 86 149 Wantree Development
17557 353 34 169 Pakistan Telecom
17974 347 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6125 986 AT&T WorldNet Services
4323 1330 1005 350 Time Warner Telecom
6478 1125 443 192 AT&T Worldnet Services
2386 1113 570 738 AT&T Data Communications Serv
6197 1016 651 498 BellSouth Network Solutions,
18566 992 288 9 Covad Communications
11492 978 101 15 Cable One
701 942 6696 749 UUNET Technologies, Inc.
174 940 6792 865 Cogent Communications
1239 816 2729 572 Sprint
20115 801 706 421 Charter Communications
7011 786 227 475 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 733 1872 41 Cox Communications, Inc.
209 712 3743 569 Qwest
721 633 21787 274 DLA Systems Automation Center
852 595 1088 381 Telus Advanced Communications
5668 570 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 566 250 70 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 547 1896 425 UUNET - Commercial IP service
24863 328 45 22 LINKdotNET AS number
3301 310 1199 289 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
8220 270 469 261 COLT Telecommunications
6746 269 95 247 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 242 284 228 Romania Data Systems S.A.
3215 239 2224 92 France Telecom Transpac
1257 223 1116 172 SWIPnet Swedish IP Network
5416 219 14 15 BATELCO-BH
3269 213 2423 71 TELECOM ITALIA
3246 208 355 197 Song Networks
30890 206 17 96 SC Kappa Invexim SRL
8551 204 196 28 Bezeq International
3352 202 1783 33 Ibernet, Internet Access Netw
20858 197 34 3 EgyNet
3300 182 171 89 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 173 1779 173 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1031 2030 210 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 348 109 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 253 74 30 ENTEL CHILE S.A.
7303 251 142 30 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 230 182 20 Telefonica Del Peru
6503 204 173 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 156 27 56 INTERCABLE
23216 153 19 42 RAMtelecom Telecomunicaciones
7910 152 11 32 ANDINET ON LINE
20299 152 22 17 NEWCOM AMERICAS
18822 145 9 10 TELEFONICA MANQUEHUE
19429 145 90 37 E.T.B.
19169 143 9 25 Telconet
14522 140 22 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 244 60 6 TEDATA
15475 155 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
2905 121 178 94 The Internetworking Company o
33783 111 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2561 64 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 50 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 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
12455 27 6 3 Jambonet Autonomous system
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1121 1044 Videsh Sanchar Nigam Ltd. Aut
4134 1275 999 CHINANET-BACKBONE
18566 992 983 Covad Communications
4323 1330 980 Time Warner Telecom
11492 978 963 Cable One
6478 1125 933 AT&T Worldnet Services
9498 958 892 BHARTI BT INTERNET LTD.
8151 1031 821 UniNet S.A. de C.V.
9583 1072 698 Sify Limited
22773 733 692 Cox Communications, Inc.
19262 757 579 Verizon Global Networks
17488 598 574 Hathway IP Over Cable Interne
5668 570 554 CenturyTel Internet Holdings,
6197 1016 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 585 510 TPG Internet Pty Ltd
18101 522 499 Reliance Infocom Ltd Internet
855 566 496 Canadian Research Network
15270 507 473 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
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 /8:20 /9:9 /10:12 /11:33 /12:117
/13:226 /14:426 /15:822 /16:9253 /17:3738 /18:6154
/19:13176 /20:14895 /21:13431 /22:17221 /23:18455 /24:113067
/25:715 /26:518 /27:439 /28:68 /29:43 /30:104
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1077 1125 AT&T Worldnet Services
18566 974 992 Covad Communications
11492 964 978 Cable One
9583 908 1072 Sify Limited
2386 837 1113 AT&T Data Communications Serv
7018 810 1499 AT&T WorldNet Services
6197 795 1016 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 686 786 Citizens Utilities
9498 612 958 BHARTI BT INTERNET LTD.
4766 577 769 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 527 1330 Time Warner Telecom
4755 527 1121 Videsh Sanchar Nigam Ltd. Aut
15270 475 507 PaeTec.net -a division of Pae
855 465 566 Canadian Research Network
18101 453 522 Reliance Infocom Ltd Internet
4668 451 459 LG-EDS Systems Inc.
5668 440 570 CenturyTel Internet Holdings,
17488 420 598 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:62 9:1 12:1794 13:1
15:16 16:3 17:3 18:5 20:36 24:903
25:1 32:53 38:282 40:57 41:91 44:2
47:7 52:4 55:1 56:3 57:25 58:307
59:390 60:211 61:947 62:1027 63:1916 64:3152
65:2324 66:3151 67:733 68:652 69:1730 70:455
71:98 72:1221 73:1 74:170 75:80 76:4
77:34 80:827 81:779 82:654 83:363 84:503
85:732 86:442 87:493 88:245 89:808 90:3
91:175 97:1 116:1 117:1 118:1 119:1
120:1 121:137 122:248 123:40 124:595 125:825
128:312 129:218 130:131 131:348 132:49 133:9
134:190 135:38 136:181 137:120 138:195 139:52
140:505 141:142 142:371 143:212 144:273 145:43
146:315 147:146 148:375 149:187 150:114 151:116
152:94 153:118 154:5 155:246 156:151 157:177
158:169 159:150 160:99 161:88 162:231 163:163
164:450 165:380 166:245 167:282 168:508 169:120
170:387 171:15 172:1 189:187 190:425 192:5755
193:3729 194:2988 195:2197 196:958 198:3737 199:3279
200:4587 201:985 202:7191 203:7343 204:3970 205:2064
206:2400 207:2847 208:2475 209:3592 210:2378 211:928
212:1295 213:1429 214:406 215:40 216:4050 217:1168
218:348 219:272 220:851 221:373 222:261
End of report
Report Website: http://thyme.apnic.net
