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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 28 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 213599
Prefixes after maximum aggregation: 114500
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 103896
Total ASes present in the Internet Routing Table: 24489
Origin-only ASes present in the Internet Routing Table: 21314
Origin ASes announcing only one prefix: 10303
Transit ASes present in the Internet Routing Table: 3175
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: 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: 1687189708
Equivalent to 100 /8s, 144 /16s and 120 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 110478
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 48612
Total APNIC prefixes after maximum aggregation: 19498
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 45730
Unique aggregates announced from the APNIC address blocks: 20536
APNIC Region origin ASes present in the Internet Routing Table: 2888
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 429
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 290459200
Equivalent to 17 /8s, 80 /16s and 14 /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: 104195
Total ARIN prefixes after maximum aggregation: 61235
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 76191
Unique aggregates announced from the ARIN address blocks: 29543
ARIN Region origin ASes present in the Internet Routing Table: 11368
ARIN Region origin ASes announcing only one prefix: 4363
ARIN Region transit ASes present in the Internet Routing Table: 1054
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 319170688
Equivalent to 19 /8s, 6 /16s and 40 /24s
Percentage of available ARIN address space announced: 70.5
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: 44086
Total RIPE prefixes after maximum aggregation: 28734
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40785
Unique aggregates announced from the RIPE address blocks: 27112
RIPE Region origin ASes present in the Internet Routing Table: 9209
RIPE Region origin ASes announcing only one prefix: 4845
RIPE Region transit ASes present in the Internet Routing Table: 1490
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 292149252
Equivalent to 17 /8s, 105 /16s and 216 /24s
Percentage of available RIPE address space announced: 79.2
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: 14133
Total LACNIC prefixes after maximum aggregation: 4066
LACNIC Deaggregation factor: 3.48
Prefixes being announced from the LACNIC address blocks: 12196
Unique aggregates announced from the LACNIC address blocks: 7025
LACNIC Region origin ASes present in the Internet Routing Table: 764
LACNIC Region origin ASes announcing only one prefix: 247
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37887488
Equivalent to 2 /8s, 66 /16s and 30 /24s
Percentage of available LACNIC address space announced: 56.5
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: 2570
Total AfriNIC prefixes after maximum aggregation: 965
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1880
Unique aggregates announced from the AfriNIC address blocks: 1185
AfriNIC Region origin ASes present in the Internet Routing Table: 180
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: 15
Number of AfriNIC addresses announced to Internet: 5412608
Equivalent to 0 /8s, 82 /16s and 151 /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 1268 8718 277 CHINANET-BACKBONE
4755 1133 383 77 Videsh Sanchar Nigam Ltd. Aut
9498 1090 468 66 BHARTI BT INTERNET LTD.
9583 1079 78 365 Sify Limited
23577 781 35 709 Korea Telecom (ATM-MPLS)
4766 767 4942 309 Korea Telecom (KIX)
17488 602 40 25 Hathway IP Over Cable Interne
7545 589 142 76 TPG Internet Pty Ltd
1221 580 1686 442 Telstra Pty Ltd
18101 530 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 500 779 73 China Telecom (Shanghai)
4668 454 68 10 LG-EDS Systems Inc.
9443 443 111 74 Primus Telecommunications
7474 377 216 258 SingTel Optus Pty Ltd
4802 360 86 149 Wantree Development
17849 357 34 100 Telecommunications Technology
17557 351 34 171 Pakistan Telecom
17974 338 129 14 PT TELEKOMUNIKASI INDONESIA
4837 337 4152 149 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6125 984 AT&T WorldNet Services
4323 1334 1005 351 Time Warner Telecom
6478 1127 444 190 AT&T Worldnet Services
2386 1115 570 740 AT&T Data Communications Serv
6197 1024 667 499 BellSouth Network Solutions,
18566 992 288 9 Covad Communications
11492 983 101 17 Cable One
174 945 6792 869 Cogent Communications
701 941 6697 748 UUNET Technologies, Inc.
1239 816 2713 572 Sprint
20115 803 707 423 Charter Communications
7011 802 229 476 Citizens Utilities
19262 756 2591 177 Verizon Global Networks
22773 732 1872 41 Cox Communications, Inc.
209 715 3744 570 Qwest
721 630 21787 274 DLA Systems Automation Center
852 594 1088 380 Telus Advanced Communications
5668 572 160 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
702 539 1879 417 UUNET - Commercial IP service
24863 328 45 22 LINKdotNET AS number
3301 313 1200 292 TeliaNet Sweden
3320 299 4994 250 Deutsche Telekom AG
8220 271 469 262 COLT Telecommunications
6746 269 95 248 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
5416 252 16 16 BATELCO-BH
8708 240 284 228 Romania Data Systems S.A.
3215 239 2224 92 France Telecom Transpac
1257 220 1111 169 SWIPnet Swedish IP Network
3269 213 2423 71 TELECOM ITALIA
3246 208 355 197 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 1043 2037 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 254 74 30 ENTEL CHILE S.A.
7303 253 142 30 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 229 180 24 Telefonica Del Peru
6503 201 172 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 245 60 6 TEDATA
15475 159 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 49 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 1133 1056 Videsh Sanchar Nigam Ltd. Aut
9498 1090 1024 BHARTI BT INTERNET LTD.
4134 1268 991 CHINANET-BACKBONE
4323 1334 983 Time Warner Telecom
18566 992 983 Covad Communications
11492 983 966 Cable One
6478 1127 937 AT&T Worldnet Services
8151 1043 833 UniNet S.A. de C.V.
9583 1079 714 Sify Limited
22773 732 691 Cox Communications, Inc.
19262 756 579 Verizon Global Networks
17488 602 577 Hathway IP Over Cable Interne
5668 572 556 CenturyTel Internet Holdings,
6197 1024 525 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 589 513 TPG Internet Pty Ltd
18101 530 507 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 /14:427 /15:823 /16:9261 /17:3754 /18:6183
/19:13205 /20:14895 /21:13442 /22:17277 /23:18564 /24:113400
/25:729 /26:547 /27:438 /28:69 /29:42 /30:93
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1079 1127 AT&T Worldnet Services
18566 974 992 Covad Communications
11492 969 983 Cable One
9583 915 1079 Sify Limited
2386 838 1115 AT&T Data Communications Serv
7018 810 1499 AT&T WorldNet Services
6197 796 1024 BellSouth Network Solutions,
23577 767 781 Korea Telecom (ATM-MPLS)
9498 738 1090 BHARTI BT INTERNET LTD.
7011 701 802 Citizens Utilities
4766 576 767 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 537 1133 Videsh Sanchar Nigam Ltd. Aut
4323 529 1334 Time Warner Telecom
15270 475 507 PaeTec.net -a division of Pae
855 465 566 Canadian Research Network
18101 461 530 Reliance Infocom Ltd Internet
4668 445 454 LG-EDS Systems Inc.
5668 442 572 CenturyTel Internet Holdings,
17488 424 602 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:63 9:1 12:1802 13:1
15:16 16:3 17:3 18:5 20:36 24:903
25:1 32:52 38:283 40:57 41:93 44:2
47:7 52:4 55:1 56:3 57:25 58:304
59:381 60:214 61:936 62:1018 63:1918 64:3140
65:2319 66:3149 67:736 68:652 69:1731 70:459
71:98 72:1208 73:1 74:180 75:81 76:5
77:67 80:833 81:783 82:660 83:361 84:508
85:738 86:443 87:496 88:246 89:809 90:3
91:211 97:1 116:1 117:1 118:1 119:1
120:1 121:141 122:345 123:58 124:673 125:847
128:306 129:218 130:124 131:348 132:50 133:10
134:188 135:39 136:181 137:93 138:195 139:52
140:499 141:142 142:371 143:211 144:271 145:43
146:317 147:147 148:377 149:186 150:114 151:116
152:94 153:118 154:5 155:251 156:153 157:173
158:169 159:151 160:99 161:89 162:230 163:162
164:451 165:381 166:245 167:280 168:512 169:119
170:386 171:15 172:1 189:194 190:421 192:5740
193:3727 194:3001 195:2205 196:949 198:3747 199:3271
200:4660 201:985 202:7199 203:7374 204:3969 205:2062
206:2405 207:2847 208:2487 209:3591 210:2387 211:926
212:1263 213:1406 214:412 215:39 216:4036 217:1173
218:350 219:270 220:856 221:374 222:263
End of report
Report Website: http://thyme.apnic.net
