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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 31 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 209385
Prefixes after maximum aggregation: 112859
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102063
Total ASes present in the Internet Routing Table: 24219
Origin-only ASes present in the Internet Routing Table: 21100
Origin ASes announcing only one prefix: 10201
Transit ASes present in the Internet Routing Table: 3119
Transit-only ASes present in the Internet Routing Table: 73
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: 2
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: 1669297996
Equivalent to 99 /8s, 127 /16s and 119 /24s
Percentage of available address space announced: 45.0
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107280
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46720
Total APNIC prefixes after maximum aggregation: 18787
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 44146
Unique aggregates announced from the APNIC address blocks: 19338
APNIC Region origin ASes present in the Internet Routing Table: 2830
APNIC Region origin ASes announcing only one prefix: 791
APNIC Region transit ASes present in the Internet Routing Table: 417
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 282256992
Equivalent to 16 /8s, 210 /16s and 230 /24s
Percentage of available APNIC address space announced: 69.9
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: 102744
Total ARIN prefixes after maximum aggregation: 60760
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75711
Unique aggregates announced from the ARIN address blocks: 29123
ARIN Region origin ASes present in the Internet Routing Table: 11287
ARIN Region origin ASes announcing only one prefix: 4318
ARIN Region transit ASes present in the Internet Routing Table: 1032
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 315101312
Equivalent to 18 /8s, 200 /16s and 16 /24s
Percentage of available ARIN address space announced: 69.6
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: 43529
Total RIPE prefixes after maximum aggregation: 28322
RIPE Deaggregation factor: 1.54
Prefixes being announced from the RIPE address blocks: 40191
Unique aggregates announced from the RIPE address blocks: 26711
RIPE Region origin ASes present in the Internet Routing Table: 9091
RIPE Region origin ASes announcing only one prefix: 4787
RIPE Region transit ASes present in the Internet Routing Table: 1471
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 287298724
Equivalent to 17 /8s, 31 /16s and 212 /24s
Percentage of available RIPE address space announced: 77.8
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: 13866
Total LACNIC prefixes after maximum aggregation: 4034
LACNIC Deaggregation factor: 3.44
Prefixes being announced from the LACNIC address blocks: 11889
Unique aggregates announced from the LACNIC address blocks: 7281
LACNIC Region origin ASes present in the Internet Routing Table: 762
LACNIC Region origin ASes announcing only one prefix: 251
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: 36639232
Equivalent to 2 /8s, 47 /16s and 18 /24s
Percentage of available LACNIC address space announced: 54.6
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: 2524
Total AfriNIC prefixes after maximum aggregation: 954
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 1811
Unique aggregates announced from the AfriNIC address blocks: 1149
AfriNIC Region origin ASes present in the Internet Routing Table: 175
AfriNIC Region origin ASes announcing only one prefix: 53
AfriNIC Region transit ASes present in the Internet Routing Table: 31
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5384448
Equivalent to 0 /8s, 82 /16s and 41 /24s
Percentage of available AfriNIC address space announced: 16.0
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 8663 273 CHINANET-BACKBONE
4755 1093 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1046 109 16 Sify Limited
9498 936 467 64 BHARTI BT INTERNET LTD.
23577 770 34 698 Korea Telecom (ATM-MPLS)
4766 763 4944 313 Korea Telecom (KIX)
17488 592 37 21 Hathway IP Over Cable Interne
1221 569 1698 440 Telstra Pty Ltd
7545 558 126 73 TPG Internet Pty Ltd
18101 516 103 23 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 439 763 70 China Telecom (Shanghai)
17974 364 129 14 PT TELEKOMUNIKASI INDONESIA
4802 359 86 149 Wantree Development
17849 355 34 94 Telecommunications Technology
17557 348 34 168 Pakistan Telecom
2907 336 1749 309 SINET Japan
4837 334 4071 146 chinanet IDC center beijing n
7474 319 212 248 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1552 6127 997 AT&T WorldNet Services
2386 1106 569 732 AT&T Data Communications Serv
4323 1062 819 298 Time Warner Telecom
6197 1024 648 502 BellSouth Network Solutions,
18566 989 288 9 Covad Communications
701 936 6695 745 UUNET Technologies, Inc.
174 934 6789 864 Cogent Communications
11492 888 99 19 Cable One
1239 828 2730 579 Sprint
19262 808 2576 180 Verizon Global Networks
20115 796 691 413 Charter Communications
7011 731 218 454 Citizens Utilities
22773 724 1872 41 Cox Communications, Inc.
209 717 3750 564 Qwest
721 686 21836 281 DLA Systems Automation Center
852 607 1091 392 Telus Advanced Communications
5668 577 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 73 Canadian Research Network
6198 552 521 258 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
24863 306 45 25 LINKdotNET AS number
3301 305 1199 287 TeliaNet Sweden
3320 297 4993 248 Deutsche Telekom AG
8220 270 474 262 COLT Telecommunications
6746 266 95 245 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 237 2192 93 France Telecom Transpac
8708 234 283 221 Romania Data Systems S.A.
1257 224 1097 173 SWIPnet Swedish IP Network
30890 214 18 90 SC Kappa Invexim SRL
3269 213 2391 71 TELECOM ITALIA
3246 207 354 197 Song Networks
5416 205 13 13 BATELCO-BH
20858 197 34 3 This AS will be used to conne
8551 192 193 28 Bezeq International
3352 182 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 944 2047 203 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 385 113 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 254 74 30 ENTEL CHILE S.A.
14117 238 16 13 Telefonica del Sur S.A.
11556 235 116 6 Cable-Wireless Panama
7303 233 104 34 Telecom Argentina Stet-France
6147 227 182 20 Telefonica Del Peru
6503 216 168 91 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 156 24 48 INTERCABLE
7910 152 11 32 ANDINET ON LINE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19169 141 9 24 Telconet
19429 139 84 34 E.T.B.
14522 136 21 8 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 226 60 6 TEDATA
15475 154 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 113 6 6 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 53 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 39 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
33776 27 2 5 Starcomms Nigeria Limited
21280 26 4 4 Swift Global Kenya Ltd.Is an
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1046 1030 Sify Limited
4755 1093 1017 Videsh Sanchar Nigam Ltd. Aut
4134 1275 1002 CHINANET-BACKBONE
18566 989 980 Covad Communications
9498 936 872 BHARTI BT INTERNET LTD.
11492 888 869 Cable One
4323 1062 764 Time Warner Telecom
8151 944 741 UniNet S.A. de C.V.
22773 724 683 Cox Communications, Inc.
19262 808 628 Verizon Global Networks
17488 592 571 Hathway IP Over Cable Interne
5668 577 558 CenturyTel Internet Holdings,
6197 1024 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 516 493 Reliance Infocom Ltd Internet
855 565 492 Canadian Research Network
7545 558 485 TPG Internet Pty Ltd
15270 503 469 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 763 450 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.1.1.0/24 4761 INDOSATNET-ASN
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 /9:10 /10:13 /11:33 /12:116
/13:226 /14:415 /15:812 /16:9204 /17:3684 /18:5989
/19:12977 /20:14595 /21:13028 /22:16713 /23:17904 /24:111938
/25:663 /26:463 /27:378 /28:49 /29:34 /30:89
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 971 989 Covad Communications
9583 874 1046 Sify Limited
11492 874 888 Cable One
7018 857 1552 AT&T WorldNet Services
2386 829 1106 AT&T Data Communications Serv
6197 795 1024 BellSouth Network Solutions,
23577 756 770 Korea Telecom (ATM-MPLS)
7011 634 731 Citizens Utilities
9498 594 936 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 502 1093 Videsh Sanchar Nigam Ltd. Aut
15270 471 503 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 447 516 Reliance Infocom Ltd Internet
5668 444 577 CenturyTel Internet Holdings,
17488 415 592 Hathway IP Over Cable Interne
1239 408 828 Sprint
33588 403 425 Bresnan Communications, LLC.
6198 390 552 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:9 7:1 8:62 9:1 12:1654
13:1 15:15 16:3 17:3 18:5 20:36
24:860 25:1 32:53 38:280 40:57 41:66
44:2 47:10 52:4 55:1 56:3 57:25
58:300 59:372 60:202 61:905 62:1050 63:1907
64:3223 65:2300 66:3133 67:710 68:643 69:1713
70:428 71:133 72:1158 73:1 74:150 75:64
76:22 77:7 80:831 81:780 82:645 83:348
84:508 85:755 86:466 87:477 88:302 89:786
90:2 91:201 97:1 116:1 117:1 118:1
119:1 120:1 121:128 122:68 123:26 124:583
125:797 128:303 129:219 130:126 131:315 132:49
133:9 134:183 135:44 136:180 137:113 138:190
139:54 140:519 141:138 142:371 143:214 144:271
145:63 146:304 147:138 148:367 149:190 150:115
151:117 152:90 153:119 154:5 155:250 156:124
157:174 158:170 159:148 160:98 161:85 162:228
163:162 164:451 165:288 166:246 167:281 168:494
169:121 170:384 171:15 172:1 189:151 190:353
192:5743 193:3665 194:2926 195:2210 196:934 198:3761
199:3272 200:4642 201:967 202:7157 203:7281 204:3953
205:2092 206:2406 207:2883 208:2422 209:3578 210:2361
211:880 212:1290 213:1419 214:395 215:37 216:4067
217:1183 218:345 219:264 220:848 221:369 222:275
End of report
Report Website: http://thyme.apnic.net
