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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 13 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 210677
Prefixes after maximum aggregation: 113406
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102625
Total ASes present in the Internet Routing Table: 24322
Origin-only ASes present in the Internet Routing Table: 21184
Origin ASes announcing only one prefix: 10250
Transit ASes present in the Internet Routing Table: 3138
Transit-only ASes present in the Internet Routing Table: 77
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: 13
Number of addresses announced to Internet: 1676446348
Equivalent to 99 /8s, 236 /16s and 138 /24s
Percentage of available address space announced: 45.2
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 108130
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47375
Total APNIC prefixes after maximum aggregation: 18846
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 44674
Unique aggregates announced from the APNIC address blocks: 19559
APNIC Region origin ASes present in the Internet Routing Table: 2846
APNIC Region origin ASes announcing only one prefix: 796
APNIC Region transit ASes present in the Internet Routing Table: 418
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 283473120
Equivalent to 16 /8s, 229 /16s and 116 /24s
Percentage of available APNIC address space announced: 70.2
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: 103091
Total ARIN prefixes after maximum aggregation: 61036
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75936
Unique aggregates announced from the ARIN address blocks: 29366
ARIN Region origin ASes present in the Internet Routing Table: 11325
ARIN Region origin ASes announcing only one prefix: 4338
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: 317335936
Equivalent to 18 /8s, 234 /16s and 41 /24s
Percentage of available ARIN address space announced: 70.1
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: 43753
Total RIPE prefixes after maximum aggregation: 28526
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40450
Unique aggregates announced from the RIPE address blocks: 26878
RIPE Region origin ASes present in the Internet Routing Table: 9135
RIPE Region origin ASes announcing only one prefix: 4811
RIPE Region transit ASes present in the Internet Routing Table: 1472
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 290276388
Equivalent to 17 /8s, 77 /16s and 68 /24s
Percentage of available RIPE address space announced: 78.6
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: 13901
Total LACNIC prefixes after maximum aggregation: 4035
LACNIC Deaggregation factor: 3.45
Prefixes being announced from the LACNIC address blocks: 11969
Unique aggregates announced from the LACNIC address blocks: 7160
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37536512
Equivalent to 2 /8s, 60 /16s and 195 /24s
Percentage of available LACNIC address space announced: 55.9
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: 2554
Total AfriNIC prefixes after maximum aggregation: 961
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1844
Unique aggregates announced from the AfriNIC address blocks: 1171
AfriNIC Region origin ASes present in the Internet Routing Table: 178
AfriNIC Region origin ASes announcing only one prefix: 55
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: 5406208
Equivalent to 0 /8s, 82 /16s and 126 /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 1282 8676 276 CHINANET-BACKBONE
4755 1100 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1039 109 16 Sify Limited
9498 953 467 65 BHARTI BT INTERNET LTD.
23577 778 35 705 Korea Telecom (ATM-MPLS)
4766 767 4944 313 Korea Telecom (KIX)
17488 594 39 23 Hathway IP Over Cable Interne
7545 578 126 76 TPG Internet Pty Ltd
1221 575 1683 443 Telstra Pty Ltd
18101 520 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
9443 443 111 75 Primus Telecommunications
4812 442 795 73 China Telecom (Shanghai)
7474 378 215 255 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 358 34 170 Pakistan Telecom
17974 346 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6125 982 AT&T WorldNet Services
4323 1120 827 359 Time Warner Telecom
2386 1108 570 733 AT&T Data Communications Serv
6197 1016 651 498 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
11492 942 100 15 Cable One
701 939 6696 747 UUNET Technologies, Inc.
174 935 6791 864 Cogent Communications
1239 824 2730 576 Sprint
20115 800 700 414 Charter Communications
7011 786 227 475 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 727 1872 41 Cox Communications, Inc.
209 718 3742 564 Qwest
721 679 21836 278 DLA Systems Automation Center
852 604 1090 391 Telus Advanced Communications
5668 576 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 70 Canadian Research Network
6198 554 526 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1897 424 UUNET - Commercial IP service
3301 315 1199 290 TeliaNet Sweden
24863 307 45 25 LINKdotNET AS number
3320 297 4993 248 Deutsche Telekom AG
8220 271 472 263 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 240 284 226 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 223 1100 172 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
3269 212 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
30890 205 17 95 SC Kappa Invexim SRL
8551 201 194 29 Bezeq International
20858 197 34 3 EgyNet
3352 195 1767 31 Ibernet, Internet Access Netw
3300 181 171 90 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1019 2111 204 UniNet S.A. de C.V.
11830 481 299 27 Instituto Costarricense de El
11172 344 108 83 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 247 142 29 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 235 116 6 Cable-Wireless Panama
6147 229 182 20 Telefonica Del Peru
6503 217 174 88 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
7910 152 11 32 ANDINET ON LINE
21826 152 27 55 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19429 144 88 35 E.T.B.
19169 142 9 24 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 240 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
33783 111 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 63 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 53 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
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1100 1025 Videsh Sanchar Nigam Ltd. Aut
9583 1039 1023 Sify Limited
4134 1282 1006 CHINANET-BACKBONE
18566 988 979 Covad Communications
11492 942 927 Cable One
9498 953 888 BHARTI BT INTERNET LTD.
8151 1019 815 UniNet S.A. de C.V.
4323 1120 761 Time Warner Telecom
22773 727 686 Cox Communications, Inc.
19262 757 579 Verizon Global Networks
17488 594 571 Hathway IP Over Cable Interne
5668 576 560 CenturyTel Internet Holdings,
6197 1016 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 578 502 TPG Internet Pty Ltd
18101 520 497 Reliance Infocom Ltd Internet
855 565 495 Canadian Research Network
15270 505 471 PaeTec.net -a division of Pae
4766 767 454 Korea Telecom (KIX)
11830 481 454 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
42.205.192.0/20 36925 Meditelecom
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 /10:13 /11:33 /12:117
/13:226 /14:422 /15:819 /16:9214 /17:3719 /18:6057
/19:13108 /20:14689 /21:13167 /22:16980 /23:17978 /24:112283
/25:690 /26:487 /27:412 /28:69 /29:43 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 928 942 Cable One
9583 869 1039 Sify Limited
2386 831 1108 AT&T Data Communications Serv
7018 809 1500 AT&T WorldNet Services
6197 795 1016 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 685 786 Citizens Utilities
9498 608 953 BHARTI BT INTERNET LTD.
4766 575 767 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 510 1100 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 451 520 Reliance Infocom Ltd Internet
5668 446 576 CenturyTel Internet Holdings,
17488 416 594 Hathway IP Over Cable Interne
33588 410 432 Bresnan Communications, LLC.
4323 404 1120 Time Warner Telecom
1239 403 824 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:64 9:1 12:1658 13:1
15:16 16:3 17:3 18:5 20:36 24:884
25:1 32:53 38:279 40:57 41:70 44:2
47:7 52:4 55:1 56:3 57:25 58:299
59:377 60:203 61:921 62:1015 63:1905 64:3242
65:2316 66:3108 67:722 68:654 69:1723 70:446
71:96 72:1184 73:1 74:162 75:77 77:18
80:840 81:777 82:653 83:359 84:507 85:727
86:463 87:480 88:229 89:790 90:3 91:169
97:1 116:1 117:1 118:1 119:1 120:1
121:133 122:82 123:38 124:580 125:785 128:308
129:219 130:136 131:340 132:49 133:9 134:186
135:43 136:181 137:113 138:195 139:54 140:503
141:141 142:373 143:215 144:269 145:43 146:315
147:144 148:377 149:190 150:114 151:116 152:93
153:119 154:5 155:250 156:129 157:173 158:168
159:149 160:98 161:88 162:228 163:163 164:449
165:329 166:247 167:281 168:497 169:120 170:379
171:15 172:1 189:162 190:388 192:5749 193:3706
194:2957 195:2200 196:944 198:3748 199:3283 200:4607
201:971 202:7173 203:7353 204:3955 205:2099 206:2398
207:2867 208:2460 209:3590 210:2351 211:922 212:1317
213:1416 214:406 215:39 216:4058 217:1164 218:352
219:274 220:852 221:370 222:265
End of report
Report Website: http://thyme.apnic.net
