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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 30 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 209284
Prefixes after maximum aggregation: 112784
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 101847
Total ASes present in the Internet Routing Table: 24214
Origin-only ASes present in the Internet Routing Table: 21099
Origin ASes announcing only one prefix: 10200
Transit ASes present in the Internet Routing Table: 3115
Transit-only ASes present in the Internet Routing Table: 75
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1667786252
Equivalent to 99 /8s, 104 /16s and 102 /24s
Percentage of available address space announced: 45.0
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107195
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46708
Total APNIC prefixes after maximum aggregation: 18739
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 44144
Unique aggregates announced from the APNIC address blocks: 19243
APNIC Region origin ASes present in the Internet Routing Table: 2827
APNIC Region origin ASes announcing only one prefix: 790
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: 281267552
Equivalent to 16 /8s, 195 /16s and 205 /24s
Percentage of available APNIC address space announced: 69.7
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: 102802
Total ARIN prefixes after maximum aggregation: 60777
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75736
Unique aggregates announced from the ARIN address blocks: 29093
ARIN Region origin ASes present in the Internet Routing Table: 11292
ARIN Region origin ASes announcing only one prefix: 4323
ARIN Region transit ASes present in the Internet Routing Table: 1036
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 314926464
Equivalent to 18 /8s, 197 /16s and 101 /24s
Percentage of available ARIN address space announced: 69.5
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: 43437
Total RIPE prefixes after maximum aggregation: 28291
RIPE Deaggregation factor: 1.54
Prefixes being announced from the RIPE address blocks: 40101
Unique aggregates announced from the RIPE address blocks: 26663
RIPE Region origin ASes present in the Internet Routing Table: 9085
RIPE Region origin ASes announcing only one prefix: 4785
RIPE Region transit ASes present in the Internet Routing Table: 1464
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 287201188
Equivalent to 17 /8s, 30 /16s and 87 /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: 13812
Total LACNIC prefixes after maximum aggregation: 4019
LACNIC Deaggregation factor: 3.44
Prefixes being announced from the LACNIC address blocks: 11850
Unique aggregates announced from the LACNIC address blocks: 7248
LACNIC Region origin ASes present in the Internet Routing Table: 759
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: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36465152
Equivalent to 2 /8s, 44 /16s and 106 /24s
Percentage of available LACNIC address space announced: 54.3
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: 2523
Total AfriNIC prefixes after maximum aggregation: 956
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1804
Unique aggregates announced from the AfriNIC address blocks: 1147
AfriNIC Region origin ASes present in the Internet Routing Table: 175
AfriNIC Region origin ASes announcing only one prefix: 52
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: 5384704
Equivalent to 0 /8s, 82 /16s and 42 /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 1279 8663 273 CHINANET-BACKBONE
4755 1091 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1048 109 16 Sify Limited
9498 934 467 64 BHARTI BT INTERNET LTD.
23577 771 34 699 Korea Telecom (ATM-MPLS)
4766 763 4944 313 Korea Telecom (KIX)
17488 588 37 20 Hathway IP Over Cable Interne
1221 567 1698 438 Telstra Pty Ltd
7545 559 126 74 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 354 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 315 212 245 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 1105 569 731 AT&T Data Communications Serv
4323 1061 819 297 Time Warner Telecom
6197 1023 647 501 BellSouth Network Solutions,
18566 989 288 9 Covad Communications
701 938 6695 746 UUNET Technologies, Inc.
174 934 6789 864 Cogent Communications
11492 912 99 15 Cable One
1239 828 2730 578 Sprint
19262 808 2576 180 Verizon Global Networks
20115 795 689 412 Charter Communications
7011 731 218 454 Citizens Utilities
22773 724 1872 41 Cox Communications, Inc.
209 716 3750 563 Qwest
721 685 21836 279 DLA Systems Automation Center
852 607 1091 392 Telus Advanced Communications
5668 574 161 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
702 544 1898 423 UUNET - Commercial IP service
3301 305 1199 287 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
24863 298 45 25 LINKdotNET AS number
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
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3352 182 1767 31 Ibernet, Internet Access Netw
3300 179 171 89 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 939 2047 204 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 239 17 14 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 160 22 39 INTERCABLE
7910 152 11 32 ANDINET ON LINE
23216 147 19 43 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 138 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
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1048 1032 Sify Limited
4755 1091 1016 Videsh Sanchar Nigam Ltd. Aut
4134 1279 1006 CHINANET-BACKBONE
18566 989 980 Covad Communications
11492 912 897 Cable One
9498 934 870 BHARTI BT INTERNET LTD.
4323 1061 764 Time Warner Telecom
8151 939 735 UniNet S.A. de C.V.
22773 724 683 Cox Communications, Inc.
19262 808 628 Verizon Global Networks
17488 588 568 Hathway IP Over Cable Interne
5668 574 555 CenturyTel Internet Holdings,
6197 1023 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 516 493 Reliance Infocom Ltd Internet
855 565 492 Canadian Research Network
7545 559 485 TPG Internet Pty Ltd
15270 502 468 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 /12:115
/13:226 /14:414 /15:813 /16:9201 /17:3682 /18:5968
/19:12965 /20:14581 /21:13022 /22:16686 /23:17912 /24:111900
/25:660 /26:458 /27:379 /28:64 /29:40 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 971 989 Covad Communications
11492 898 912 Cable One
9583 875 1048 Sify Limited
7018 857 1552 AT&T WorldNet Services
2386 828 1105 AT&T Data Communications Serv
6197 795 1023 BellSouth Network Solutions,
23577 757 771 Korea Telecom (ATM-MPLS)
7011 634 731 Citizens Utilities
9498 592 934 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 501 1091 Videsh Sanchar Nigam Ltd. Aut
15270 470 502 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 447 516 Reliance Infocom Ltd Internet
5668 441 574 CenturyTel Internet Holdings,
17488 411 588 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 8:61 9:1 12:1657
13:1 15:15 16:3 17:3 18:5 20:36
24:873 25:1 32:54 38:278 40:57 41:67
44:2 47:10 52:4 55:1 56:3 57:25
58:289 59:376 60:202 61:943 62:1048 63:1906
64:3211 65:2299 66:3134 67:712 68:637 69:1712
70:427 71:133 72:1145 73:1 74:149 75:64
76:22 77:3 80:829 81:778 82:644 83:348
84:495 85:757 86:466 87:478 88:276 89:779
90:2 91:195 97:1 116:1 117:1 118:1
119:1 120:1 121:127 122:68 123:26 124:578
125:787 128:303 129:219 130:126 131:315 132:49
133:9 134:182 135:44 136:180 137:113 138:190
139:53 140:521 141:137 142:371 143:213 144:268
145:67 146:306 147:138 148:367 149:190 150:115
151:117 152:90 153:119 154:5 155:250 156:125
157:174 158:170 159:147 160:98 161:85 162:228
163:161 164:451 165:288 166:246 167:281 168:493
169:121 170:379 171:15 172:1 189:145 190:357
192:5740 193:3659 194:2924 195:2212 196:929 198:3776
199:3276 200:4644 201:964 202:7167 203:7268 204:3959
205:2110 206:2410 207:2889 208:2430 209:3575 210:2362
211:881 212:1290 213:1419 214:395 215:39 216:4061
217:1180 218:347 219:263 220:846 221:370 222:273
End of report
Report Website: http://thyme.apnic.net
