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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 25 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 213055
Prefixes after maximum aggregation: 114355
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 103759
Total ASes present in the Internet Routing Table: 24450
Origin-only ASes present in the Internet Routing Table: 21289
Origin ASes announcing only one prefix: 10284
Transit ASes present in the Internet Routing Table: 3161
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: 1686357132
Equivalent to 100 /8s, 131 /16s and 196 /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: 110049
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 48332
Total APNIC prefixes after maximum aggregation: 19402
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 45424
Unique aggregates announced from the APNIC address blocks: 20387
APNIC Region origin ASes present in the Internet Routing Table: 2880
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 425
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 290420224
Equivalent to 17 /8s, 79 /16s and 118 /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: 104080
Total ARIN prefixes after maximum aggregation: 61195
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 76158
Unique aggregates announced from the ARIN address blocks: 29544
ARIN Region origin ASes present in the Internet Routing Table: 11357
ARIN Region origin ASes announcing only one prefix: 4361
ARIN Region transit ASes present in the Internet Routing Table: 1050
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 318997632
Equivalent to 19 /8s, 3 /16s and 132 /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: 44021
Total RIPE prefixes after maximum aggregation: 28737
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40707
Unique aggregates announced from the RIPE address blocks: 27149
RIPE Region origin ASes present in the Internet Routing Table: 9194
RIPE Region origin ASes announcing only one prefix: 4830
RIPE Region transit ASes present in the Internet Routing Table: 1489
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 291721732
Equivalent to 17 /8s, 99 /16s and 82 /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: 14054
Total LACNIC prefixes after maximum aggregation: 4054
LACNIC Deaggregation factor: 3.47
Prefixes being announced from the LACNIC address blocks: 12158
Unique aggregates announced from the LACNIC address blocks: 7002
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 246
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37674240
Equivalent to 2 /8s, 62 /16s and 221 /24s
Percentage of available LACNIC address space announced: 56.1
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: 2565
Total AfriNIC prefixes after maximum aggregation: 965
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1885
Unique aggregates announced from the AfriNIC address blocks: 1178
AfriNIC Region origin ASes present in the Internet Routing Table: 180
AfriNIC Region origin ASes announcing only one prefix: 59
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: 15
Number of AfriNIC addresses announced to Internet: 5404672
Equivalent to 0 /8s, 82 /16s and 120 /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 1274 8718 276 CHINANET-BACKBONE
4755 1124 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1076 77 368 Sify Limited
9498 967 468 66 BHARTI BT INTERNET LTD.
23577 779 35 707 Korea Telecom (ATM-MPLS)
4766 766 4942 309 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 528 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 498 763 72 China Telecom (Shanghai)
4668 461 68 10 LG-EDS Systems Inc.
9443 444 111 75 Primus Telecommunications
7474 381 216 259 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 360 86 149 Wantree Development
17557 351 34 168 Pakistan Telecom
17974 338 129 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 1498 6125 985 AT&T WorldNet Services
4323 1333 1005 351 Time Warner Telecom
6478 1125 443 193 AT&T Worldnet Services
2386 1113 570 738 AT&T Data Communications Serv
6197 1025 667 500 BellSouth Network Solutions,
18566 992 288 9 Covad Communications
11492 981 101 16 Cable One
174 944 6792 868 Cogent Communications
701 941 6695 748 UUNET Technologies, Inc.
1239 812 2713 571 Sprint
20115 801 706 421 Charter Communications
7011 799 229 475 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 732 1872 41 Cox Communications, Inc.
209 712 3743 569 Qwest
721 633 21787 274 DLA Systems Automation Center
852 594 1088 380 Telus Advanced Communications
5668 571 160 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
702 541 1895 419 UUNET - Commercial IP service
24863 328 45 22 LINKdotNET AS number
3301 311 1199 290 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
8220 271 469 262 COLT Telecommunications
6746 270 95 248 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 221 1112 170 SWIPnet Swedish IP Network
5416 219 14 15 BATELCO-BH
3269 213 2423 71 TELECOM ITALIA
3246 207 354 196 Song Networks
30890 207 17 97 SC Kappa Invexim SRL
8551 204 196 28 Bezeq International
3352 201 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 1042 2038 212 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 228 180 24 Telefonica Del Peru
6503 200 172 83 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 174 25 25 NEWCOM AMERICAS
21826 156 27 56 INTERCABLE
23216 153 19 42 RAMtelecom Telecomunicaciones
7910 152 11 32 ANDINET ON LINE
19429 146 91 37 E.T.B.
18822 145 9 10 TELEFONICA MANQUEHUE
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 108 6 6 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 39 10 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
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 1124 1047 Videsh Sanchar Nigam Ltd. Aut
4134 1274 998 CHINANET-BACKBONE
18566 992 983 Covad Communications
4323 1333 982 Time Warner Telecom
11492 981 965 Cable One
6478 1125 932 AT&T Worldnet Services
9498 967 901 BHARTI BT INTERNET LTD.
8151 1042 830 UniNet S.A. de C.V.
9583 1076 708 Sify Limited
22773 732 691 Cox Communications, Inc.
19262 757 579 Verizon Global Networks
17488 598 574 Hathway IP Over Cable Interne
5668 571 555 CenturyTel Internet Holdings,
6197 1025 525 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 585 510 TPG Internet Pty Ltd
18101 528 505 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 /16:9249 /17:3747 /18:6175
/19:13190 /20:14890 /21:13416 /22:17227 /23:18502 /24:113069
/25:702 /26:535 /27:439 /28:67 /29:42 /30:104
/31:0 /32:36
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 967 981 Cable One
9583 912 1076 Sify Limited
2386 837 1113 AT&T Data Communications Serv
7018 809 1498 AT&T WorldNet Services
6197 796 1025 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 698 799 Citizens Utilities
9498 619 967 BHARTI BT INTERNET LTD.
4766 575 766 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 530 1124 Videsh Sanchar Nigam Ltd. Aut
4323 528 1333 Time Warner Telecom
15270 475 507 PaeTec.net -a division of Pae
855 465 566 Canadian Research Network
18101 459 528 Reliance Infocom Ltd Internet
4668 452 461 LG-EDS Systems Inc.
5668 441 571 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 12:1791 13:1
15:16 16:3 17:3 18:5 20:36 24:901
25:1 32:53 38:280 40:57 41:91 44:2
47:7 52:4 55:1 56:3 57:25 58:307
59:389 60:211 61:939 62:1027 63:1913 64:3140
65:2315 66:3145 67:733 68:652 69:1729 70:455
71:98 72:1222 73:1 74:178 75:80 76:5
77:34 80:829 81:781 82:654 83:363 84:508
85:730 86:442 87:494 88:247 89:802 90:3
91:184 97:1 116:1 117:1 118:1 119:1
120:1 121:139 122:300 123:49 124:596 125:844
128:309 129:219 130:125 131:347 132:49 133:9
134:188 135:35 136:181 137:91 138:195 139:52
140:501 141:142 142:371 143:212 144:267 145:43
146:314 147:147 148:375 149:187 150:114 151:116
152:94 153:118 154:5 155:247 156:151 157:159
158:167 159:151 160:99 161:88 162:231 163:162
164:450 165:378 166:245 167:283 168:512 169:119
170:380 171:15 172:1 189:196 190:425 192:5743
193:3725 194:2995 195:2196 196:957 198:3735 199:3275
200:4618 201:984 202:7174 203:7365 204:3969 205:2061
206:2409 207:2847 208:2476 209:3588 210:2384 211:927
212:1293 213:1425 214:406 215:39 216:4033 217:1169
218:349 219:271 220:856 221:374 222:264
End of report
Report Website: http://thyme.apnic.net
