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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 17 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 207359
Prefixes after maximum aggregation: 112365
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101111
Total ASes present in the Internet Routing Table: 24122
Origin-only ASes present in the Internet Routing Table: 21016
Origin ASes announcing only one prefix: 10171
Transit ASes present in the Internet Routing Table: 3106
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: 2
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1658704332
Equivalent to 98 /8s, 221 /16s and 209 /24s
Percentage of available address space announced: 44.8
Percentage of allocated address space announced: 63.5
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 105720
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46014
Total APNIC prefixes after maximum aggregation: 18689
APNIC Deaggregation factor: 2.46
Prefixes being announced from the APNIC address blocks: 43590
Unique aggregates announced from the APNIC address blocks: 19108
APNIC Region origin ASes present in the Internet Routing Table: 2822
APNIC Region origin ASes announcing only one prefix: 792
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: 275569248
Equivalent to 16 /8s, 108 /16s and 218 /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: 102235
Total ARIN prefixes after maximum aggregation: 60599
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75419
Unique aggregates announced from the ARIN address blocks: 28758
ARIN Region origin ASes present in the Internet Routing Table: 11264
ARIN Region origin ASes announcing only one prefix: 4315
ARIN Region transit ASes present in the Internet Routing Table: 1038
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 313429632
Equivalent to 18 /8s, 174 /16s and 142 /24s
Percentage of available ARIN address space announced: 69.2
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: 43026
Total RIPE prefixes after maximum aggregation: 28136
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39766
Unique aggregates announced from the RIPE address blocks: 26490
RIPE Region origin ASes present in the Internet Routing Table: 9030
RIPE Region origin ASes announcing only one prefix: 4759
RIPE Region transit ASes present in the Internet Routing Table: 1457
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286175652
Equivalent to 17 /8s, 14 /16s and 177 /24s
Percentage of available RIPE address space announced: 77.5
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: 13566
Total LACNIC prefixes after maximum aggregation: 3986
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11648
Unique aggregates announced from the LACNIC address blocks: 7187
LACNIC Region origin ASes present in the Internet Routing Table: 757
LACNIC Region origin ASes announcing only one prefix: 252
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: 36191232
Equivalent to 2 /8s, 40 /16s and 60 /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: 2516
Total AfriNIC prefixes after maximum aggregation: 954
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1770
Unique aggregates announced from the AfriNIC address blocks: 1138
AfriNIC Region origin ASes present in the Internet Routing Table: 171
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: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5348352
Equivalent to 0 /8s, 81 /16s and 156 /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 1054 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1025 99 66 Sify Limited
9498 926 467 65 BHARTI BT INTERNET LTD.
23577 772 34 700 KRNIC
4766 758 4946 312 Korea Telecom (KIX)
17488 575 36 23 Hathway IP Over Cable Interne
1221 573 1698 444 Telstra Pty Ltd
7545 560 126 73 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 499 87 27 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
4812 436 759 69 China Telecom (Shanghai)
4802 360 86 150 Wantree Development
17974 357 129 14 PT TELEKOMUNIKASI INDONESIA
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 309 211 237 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1539 6146 997 AT&T WorldNet Services
2386 1105 585 732 AT&T Data Communications Serv
4323 1066 821 300 Time Warner Telecom
6197 1021 639 500 BellSouth Network Solutions,
18566 986 272 8 Covad Communications
701 935 6675 748 UUNET Technologies, Inc.
174 933 6789 865 Cogent Communications
11492 911 99 14 Cable One
1239 822 2730 572 Sprint
19262 804 2538 182 Verizon Global Networks
20115 774 678 413 Charter Communications
209 718 3749 567 Qwest
22773 715 1744 41 Cox Communications, Inc.
721 708 21836 284 DLA Systems Automation Center
7011 704 210 440 Citizens Utilities
852 608 1093 394 Telus Advanced Communications
5668 568 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
6198 550 519 256 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 271 474 262 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 209 18 90 SC Kappa Invexim SRL
3246 206 354 196 Song Networks
5416 206 13 9 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 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
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 849 2015 203 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 224 182 20 Telefonica Del Peru
6503 217 170 92 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 147 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 290 868 232 The Internet Solution
8452 231 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 47 13 18 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 38 6 3 Jambonet Autonomous system
33774 38 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
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 1054 979 Videsh Sanchar Nigam Ltd. Aut
18566 986 978 Covad Communications
9583 1025 959 Sify Limited
11492 911 897 Cable One
9498 926 861 BHARTI BT INTERNET LTD.
4323 1066 766 Time Warner Telecom
22773 715 674 Cox Communications, Inc.
8151 849 646 UniNet S.A. de C.V.
19262 804 622 Verizon Global Networks
17488 575 552 Hathway IP Over Cable Interne
5668 568 549 CenturyTel Internet Holdings,
6197 1021 521 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 560 487 TPG Internet Pty Ltd
18101 499 472 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 758 446 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 203.10.62.0/24 1221 Telstra Pty Ltd
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 /11:32 /12:117
/13:230 /14:411 /15:807 /16:9105 /17:3642 /18:5934
/19:12911 /20:14514 /21:12958 /22:16516 /23:17768 /24:110739
/25:603 /26:453 /27:352 /28:72 /29:42 /30:87
/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 837 1539 AT&T WorldNet Services
2386 828 1105 AT&T Data Communications Serv
6197 794 1021 BellSouth Network Solutions,
23577 758 772 KRNIC
7011 609 704 Citizens Utilities
9498 584 926 BHARTI BT INTERNET LTD.
4766 566 758 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 488 1054 Videsh Sanchar Nigam Ltd. Aut
15270 466 498 PaeTec.net -a division of Pae
5668 438 568 CenturyTel Internet Holdings,
855 433 536 Canadian Research Network
18101 433 499 Reliance Infocom Ltd Internet
1239 408 822 Sprint
33588 400 422 Bresnan Communications, LLC.
17488 398 575 Hathway IP Over Cable Interne
6198 389 550 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:62 9:1 12:1652 13:1 15:15
16:3 17:3 18:5 20:36 24:869 25:1
32:55 38:275 40:57 41:57 44:2 47:10
52:4 55:1 56:3 57:25 58:290 59:369
60:198 61:952 62:1074 63:1895 64:3173 65:2300
66:3093 67:696 68:642 69:1722 70:410 71:129
72:1130 74:129 75:59 76:20 80:821 81:777
82:647 83:346 84:492 85:770 86:431 87:454
88:264 89:760 90:2 91:129 97:1 121:148
122:55 123:24 124:527 125:755 128:308 129:219
130:126 131:315 132:49 133:9 134:183 135:44
136:181 137:113 138:189 139:54 140:521 141:135
142:348 143:211 144:264 145:67 146:320 147:138
148:363 149:188 150:114 151:117 152:90 153:119
154:5 155:245 156:156 157:153 158:167 159:140
160:99 161:100 162:226 163:159 164:237 165:236
166:243 167:280 168:480 169:120 170:365 171:15
172:1 189:71 190:343 192:5740 193:3629 194:2905
195:2198 196:914 198:3775 199:3281 200:4628 201:950
202:7057 203:7257 204:3954 205:2102 206:2430 207:2894
208:2379 209:3562 210:2299 211:871 212:1291 213:1418
214:378 215:39 216:4079 217:1177 218:356 219:244
220:841 221:368 222:267
End of report
Report Website: http://thyme.apnic.net
