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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 12 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 190161
Prefixes after maximum aggregation: 104634
Unique aggregates announced to Internet: 93192
Total ASes present in the Internet Routing Table: 22404
Origin-only ASes present in the Internet Routing Table: 19487
Origin ASes announcing only one prefix: 9340
Transit ASes present in the Internet Routing Table: 2917
Transit-only ASes present in the Internet Routing Table: 60
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1543718888
Equivalent to 92 /8s, 3 /16s and 71 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94160
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40681
Total APNIC prefixes after maximum aggregation: 16874
Prefixes being announced from the APNIC address blocks: 38399
Unique aggregates announced from the APNIC address blocks: 18560
APNIC Region origin ASes present in the Internet Routing Table: 2599
APNIC Region origin ASes announcing only one prefix: 743
APNIC Region transit ASes present in the Internet Routing Table: 396
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 227773024
Equivalent to 13 /8s, 147 /16s and 138 /24s
Percentage of available APNIC address space announced: 71.2
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: 97760
Total ARIN prefixes after maximum aggregation: 57761
Prefixes being announced from the ARIN address blocks: 71757
Unique aggregates announced from the ARIN address blocks: 26662
ARIN Region origin ASes present in the Internet Routing Table: 10758
ARIN Region origin ASes announcing only one prefix: 4049
ARIN Region transit ASes present in the Internet Routing Table: 992
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 293590016
Equivalent to 17 /8s, 127 /16s and 212 /24s
Percentage of available ARIN address space announced: 76.1
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38065
Total RIPE prefixes after maximum aggregation: 25412
Prefixes being announced from the RIPE address blocks: 35083
Unique aggregates announced from the RIPE address blocks: 23711
RIPE Region origin ASes present in the Internet Routing Table: 8138
RIPE Region origin ASes announcing only one prefix: 4275
RIPE Region transit ASes present in the Internet Routing Table: 1350
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 252498564
Equivalent to 15 /8s, 12 /16s and 210 /24s
Percentage of available RIPE address space announced: 79.2
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11453
Total LACNIC prefixes after maximum aggregation: 3690
Prefixes being announced from the LACNIC address blocks: 9590
Unique aggregates announced from the LACNIC address blocks: 5552
LACNIC Region origin ASes present in the Internet Routing Table: 694
LACNIC Region origin ASes announcing only one prefix: 228
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27337984
Equivalent to 1 /8s, 161 /16s and 37 /24s
Percentage of available LACNIC address space announced: 40.7
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: 2194
Total AfriNIC prefixes after maximum aggregation: 897
Prefixes being announced from the AfriNIC address blocks: 1505
Unique aggregates announced from the AfriNIC address blocks: 961
AfriNIC Region origin ASes present in the Internet Routing Table: 155
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4113920
Equivalent to 0 /8s, 62 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 12.3
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 1242 7204 228 CHINANET-BACKBONE
4755 930 259 73 Videsh Sanchar Nigam Ltd. Aut
9583 903 109 16 Sify Limited
4766 690 4435 304 Korea Telecom (KIX)
1221 612 1668 470 Telstra Pty Ltd
9498 570 211 67 BHARTI BT INTERNET LTD.
7545 544 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 486 7029 110 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 414 85 24 Reliance Infocom Ltd Internet
4802 380 80 167 Wantree Development
17557 375 30 177 Pakistan Telecom
17849 359 22 114 Telecommunications Technology
17974 347 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1733 312 SINET Japan
9929 326 222 58 China Netcom Corp.
7474 298 211 228 SingTel Optus Pty Ltd
9800 275 410 67 CHINA UNICOM
9837 267 78 160 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1478 6135 943 AT&T WorldNet Services
4323 1310 740 259 Time Warner Telecom
721 1014 21998 313 DLA Systems Automation Center
6197 1008 625 471 BellSouth Network Solutions,
174 969 5787 904 Cogent Communications
19029 945 151 108 New Edge Networks
18566 943 272 8 Covad Communications
701 939 6765 773 UUNET Technologies, Inc.
2386 894 557 688 AT&T Data Communications Serv
1239 846 2788 600 Sprint
20115 713 617 381 Charter Communications
209 708 3688 552 Qwest
19262 708 2103 183 Verizon Global Networks
22773 663 1741 40 Cox Communications, Inc.
7011 638 218 415 Citizens Utilities
11492 623 87 22 Cable One
852 584 1084 382 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 64 Canadian Research Network
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 573 1951 451 UUNET - Commercial IP service
3301 305 1327 292 TeliaNet Sweden
3352 305 1644 30 Ibernet, Internet Access Netw
3320 287 3989 240 Deutsche Telekom AG
8220 274 470 262 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
6746 238 90 212 Dynamic Network Technologies,
3246 236 504 226 Song Networks
8708 216 275 201 Romania Data Systems S.A.
24863 214 42 11 LINKdotNET AS number
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
3215 200 1680 93 France Telecom Transpac
30890 193 17 71 SC Kappa Invexim SRL
1257 190 740 166 SWIPnet Swedish IP Network
8866 180 37 15 Bulgarian Telecommunication C
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 170 348 139 BT Ignite European Backbone
9121 169 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1083 226 UniNet S.A. de C.V.
22047 419 158 11 VTR PUNTO NET S.A.
11172 352 110 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 175 81 25 Telecom Argentina Stet-France
6503 136 151 82 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 126 8 26 Telconet
14259 119 10 15 GTD Internet S.A.
19429 118 64 41 E.T.B.
14522 115 18 9 SatNet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 164 60 7 TEDATA
6713 147 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 104 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
15475 61 84 4 Nile Online
20928 60 16 2 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
12455 25 6 3 Jambonet Autonomous system
16637 25 18 23 Johnnic e-Ventures
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21491 22 17 2 UTL On-line is RF broadband I
21280 21 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1310 1051 Time Warner Telecom
4134 1242 1014 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 903 887 Sify Limited
4755 930 857 Videsh Sanchar Nigam Ltd. Aut
19029 945 837 New Edge Networks
721 1014 701 DLA Systems Automation Center
22773 663 623 Cox Communications, Inc.
11492 623 601 Cable One
6197 1008 537 BellSouth Network Solutions,
19262 708 525 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
9498 570 503 BHARTI BT INTERNET LTD.
855 550 486 Canadian Research Network
8151 705 479 UniNet S.A. de C.V.
7545 544 474 TPG Internet Pty Ltd
3602 524 420 Sprint Canada, Inc.
22047 419 408 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.84.205.0/24 719 LANLINK autonomous system
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 /8:18 /9:9 /10:9 /11:28 /12:92
/13:200 /14:360 /15:704 /16:8855 /17:3247 /18:5351
/19:11723 /20:13272 /21:11542 /22:14730 /23:15882 /24:103014
/25:395 /26:322 /27:182 /28:68 /29:67 /30:51
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 926 943 Covad Communications
19029 876 945 New Edge Networks
6197 793 1008 BellSouth Network Solutions,
7018 779 1478 AT&T WorldNet Services
9583 733 903 Sify Limited
4323 641 1310 Time Warner Telecom
11492 614 623 Cable One
2386 613 894 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 547 638 Citizens Utilities
4766 500 690 Korea Telecom (KIX)
855 424 550 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 403 434 PaeTec.net -a division of Pae
1239 390 846 Sprint
4755 364 930 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
17849 359 359 Telecommunications Technology
702 356 573 UUNET - Commercial IP service
6198 354 508 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 11:1 12:1617 13:1 15:15
16:3 17:3 18:4 20:41 24:733 25:1
32:58 38:230 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:185 59:217
60:184 61:863 62:773 63:1909 64:3176 65:2182
66:3055 67:615 68:663 69:1530 70:377 71:80
72:755 74:41 80:785 81:646 82:594 83:396
84:389 85:542 86:387 87:359 88:97 89:242
124:295 125:498 128:153 129:190 130:116 131:317
132:33 133:8 134:159 135:48 136:178 137:82
138:205 139:62 140:466 141:130 142:379 143:165
144:223 145:40 146:302 147:136 148:318 149:188
150:114 151:94 152:69 153:107 154:5 155:202
156:98 157:147 158:168 159:173 160:89 161:76
162:245 163:149 164:178 165:200 166:168 167:246
168:492 169:128 170:338 171:14 183:1 190:75
192:5739 193:3367 194:2639 195:1910 196:858 198:3907
199:3219 200:4469 201:980 202:6657 203:7038 204:3898
205:2036 206:2419 207:2902 208:2132 209:3775 210:1974
211:685 212:1263 213:1476 214:364 215:40 216:4185
217:1155 218:291 219:235 220:717 221:360 222:158
End of report
