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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 16 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 207279
Prefixes after maximum aggregation: 112319
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101078
Total ASes present in the Internet Routing Table: 24116
Origin-only ASes present in the Internet Routing Table: 21015
Origin ASes announcing only one prefix: 10168
Transit ASes present in the Internet Routing Table: 3101
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: 1
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1655032524
Equivalent to 98 /8s, 165 /16s and 202 /24s
Percentage of available address space announced: 44.7
Percentage of allocated address space announced: 63.3
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 105664
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45966
Total APNIC prefixes after maximum aggregation: 18658
APNIC Deaggregation factor: 2.46
Prefixes being announced from the APNIC address blocks: 43522
Unique aggregates announced from the APNIC address blocks: 19083
APNIC Region origin ASes present in the Internet Routing Table: 2822
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: 3.7
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 275533664
Equivalent to 16 /8s, 108 /16s and 79 /24s
Percentage of available APNIC address space announced: 86.2
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, 121/8, 122/7, 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: 102230
Total ARIN prefixes after maximum aggregation: 60598
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75426
Unique aggregates announced from the ARIN address blocks: 28754
ARIN Region origin ASes present in the Internet Routing Table: 11260
ARIN Region origin ASes announcing only one prefix: 4313
ARIN Region transit ASes present in the Internet Routing Table: 1034
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 312342912
Equivalent to 18 /8s, 157 /16s and 249 /24s
Percentage of available ARIN address space announced: 69.0
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: 42989
Total RIPE prefixes after maximum aggregation: 28122
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39751
Unique aggregates announced from the RIPE address blocks: 26505
RIPE Region origin ASes present in the Internet Routing Table: 9026
RIPE Region origin ASes announcing only one prefix: 4753
RIPE Region transit ASes present in the Internet Routing Table: 1452
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 284150948
Equivalent to 16 /8s, 239 /16s and 204 /24s
Percentage of available RIPE address space announced: 77.0
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: 13571
Total LACNIC prefixes after maximum aggregation: 3986
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11654
Unique aggregates announced from the LACNIC address blocks: 7183
LACNIC Region origin ASes present in the Internet Routing Table: 757
LACNIC Region origin ASes announcing only one prefix: 253
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: 36147712
Equivalent to 2 /8s, 39 /16s and 146 /24s
Percentage of available LACNIC address space announced: 53.9
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: 2522
Total AfriNIC prefixes after maximum aggregation: 955
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1767
Unique aggregates announced from the AfriNIC address blocks: 1128
AfriNIC Region origin ASes present in the Internet Routing Table: 173
AfriNIC Region origin ASes announcing only one prefix: 53
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5347584
Equivalent to 0 /8s, 81 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 15.9
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 1266 8645 264 CHINANET-BACKBONE
4755 1045 384 67 Videsh Sanchar Nigam Ltd. Aut
9583 1025 99 66 Sify Limited
9498 921 467 64 BHARTI BT INTERNET LTD.
23577 772 34 700 KRNIC
4766 761 4946 312 Korea Telecom (KIX)
17488 575 36 23 Hathway IP Over Cable Interne
1221 574 1698 445 Telstra Pty Ltd
7545 560 126 74 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 498 87 27 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
4812 436 759 69 China Telecom (Shanghai)
17974 363 129 14 PT TELEKOMUNIKASI INDONESIA
4802 360 86 150 Wantree Development
17557 355 35 169 Pakistan Telecom
17849 353 33 93 Telecommunications Technology
4837 333 4071 146 chinanet IDC center beijing n
2907 332 1749 309 SINET Japan
7474 307 211 235 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1534 6161 994 AT&T WorldNet Services
2386 1104 585 732 AT&T Data Communications Serv
4323 1065 805 299 Time Warner Telecom
6197 1021 639 505 BellSouth Network Solutions,
18566 986 272 8 Covad Communications
174 934 6789 866 Cogent Communications
701 934 6675 748 UUNET Technologies, Inc.
11492 911 99 14 Cable One
1239 822 2730 572 Sprint
19262 804 2538 182 Verizon Global Networks
20115 776 678 415 Charter Communications
209 723 3749 568 Qwest
22773 715 1744 41 Cox Communications, Inc.
7011 704 210 440 Citizens Utilities
721 700 21836 284 DLA Systems Automation Center
852 608 1093 394 Telus Advanced Communications
5668 569 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
6198 549 519 256 BellSouth Network Solutions,
855 536 250 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1912 425 UUNET - Commercial IP service
3301 304 1199 288 TeliaNet Sweden
3320 296 4993 247 Deutsche Telekom AG
24863 296 45 25 LINKdotNET AS number
8220 270 473 261 COLT Telecommunications
6746 265 93 243 Dynamic Network Technologies,
680 256 2042 250 DFN-IP service G-WiN
8708 234 283 221 Romania Data Systems S.A.
3215 233 2136 96 France Telecom Transpac
1257 216 1069 172 SWIPnet Swedish IP Network
3269 211 2375 74 TELECOM ITALIA
30890 208 18 89 SC Kappa Invexim SRL
3246 206 354 196 Song Networks
5416 206 13 9 BATELCO-BH
8551 196 197 24 Bezeq International
20858 187 34 3 This AS will be used to conne
3300 177 171 89 AUCS Communications Services
3352 176 1767 31 Ibernet, Internet Access Netw
12479 175 578 6 Uni2 Autonomous System
786 172 1795 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 848 2015 202 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 388 106 78 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
14117 258 16 13 Telefonica del Sur S.A.
6471 256 74 31 ENTEL CHILE S.A.
7303 230 103 32 Telecom Argentina Stet-France
6147 225 182 20 Telefonica Del Peru
6503 218 170 93 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 156 20 35 INTERCABLE
7910 148 10 34 ANDINET ON LINE
23216 146 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 139 9 22 Telconet
19429 139 84 34 E.T.B.
14522 134 21 8 SatNet S.A.
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 289 868 231 The Internet Solution
8452 230 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 107 6 4 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 84 175 73 The Internetworking Company o
2561 60 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 55 13 15 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 AS Number for Telecom Algeria
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
16637 30 21 28 Johnnic e-Ventures
15804 27 2 1 AS of The Way Out Internet So
33776 27 2 5 Starcomms Nigeria Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1266 1002 CHINANET-BACKBONE
4755 1045 978 Videsh Sanchar Nigam Ltd. Aut
18566 986 978 Covad Communications
9583 1025 959 Sify Limited
11492 911 897 Cable One
9498 921 857 BHARTI BT INTERNET LTD.
4323 1065 766 Time Warner Telecom
22773 715 674 Cox Communications, Inc.
8151 848 646 UniNet S.A. de C.V.
19262 804 622 Verizon Global Networks
17488 575 552 Hathway IP Over Cable Interne
5668 569 550 CenturyTel Internet Holdings,
6197 1021 516 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 560 486 TPG Internet Pty Ltd
18101 498 471 Reliance Infocom Ltd Internet
15270 498 464 PaeTec.net -a division of Pae
855 536 463 Canadian Research Network
11830 482 463 Instituto Costarricense de El
4766 761 449 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
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
192.172.0.0/19 721 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 /11:30 /12:116
/13:229 /14:409 /15:803 /16:9104 /17:3642 /18:5937
/19:12913 /20:14496 /21:12954 /22:16500 /23:17781 /24:110715
/25:574 /26:454 /27:356 /28:72 /29:42 /30:86
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 969 986 Covad Communications
11492 897 911 Cable One
9583 854 1025 Sify Limited
7018 835 1534 AT&T WorldNet Services
2386 827 1104 AT&T Data Communications Serv
6197 794 1021 BellSouth Network Solutions,
23577 758 772 KRNIC
7011 609 704 Citizens Utilities
9498 581 921 BHARTI BT INTERNET LTD.
4766 569 761 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 487 1045 Videsh Sanchar Nigam Ltd. Aut
15270 466 498 PaeTec.net -a division of Pae
5668 439 569 CenturyTel Internet Holdings,
855 433 536 Canadian Research Network
18101 432 498 Reliance Infocom Ltd Internet
1239 408 822 Sprint
33588 400 422 Bresnan Communications, LLC.
17488 398 575 Hathway IP Over Cable Interne
6198 388 549 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:62 9:1 12:1654 13:1 15:15
16:3 17:3 18:5 20:36 24:868 25:1
32:55 38:274 40:57 41:57 44:2 47:10
52:4 55:1 56:3 57:25 58:283 59:368
60:198 61:959 62:1072 63:1893 64:3178 65:2298
66:3092 67:695 68:643 69:1724 70:410 71:129
72:1131 74:129 75:58 76:20 80:821 81:777
82:638 83:348 84:492 85:770 86:431 87:454
88:261 89:760 90:2 91:130 97:1 121:136
122:56 123:24 124:523 125:757 128:306 129:219
130:126 131:315 132:49 133:9 134:183 135:44
136:181 137:112 138:189 139:54 140:522 141:135
142:349 143:212 144:265 145:67 146:320 147:138
148:364 149:187 150:110 151:117 152:90 153:119
154:5 155:245 156:156 157:152 158:167 159:141
160:99 161:99 162:226 163:159 164:235 165:237
166:242 167:280 168:478 169:121 170:364 171:14
172:1 189:71 190:343 192:5736 193:3621 194:2905
195:2196 196:911 198:3779 199:3278 200:4627 201:951
202:7076 203:7248 204:3952 205:2105 206:2428 207:2892
208:2379 209:3552 210:2297 211:870 212:1292 213:1422
214:386 215:39 216:4080 217:1178 218:356 219:261
220:839 221:370 222:265
End of report
Report Website: http://thyme.apnic.net
