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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 15 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 190284
Prefixes after maximum aggregation: 104706
Unique aggregates announced to Internet: 93196
Total ASes present in the Internet Routing Table: 22443
Origin-only ASes present in the Internet Routing Table: 19526
Origin ASes announcing only one prefix: 9359
Transit ASes present in the Internet Routing Table: 2917
Transit-only ASes present in the Internet Routing Table: 63
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: 4
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: 1533701352
Equivalent to 91 /8s, 106 /16s and 108 /24s
Percentage of available address space announced: 41.4
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94171
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40652
Total APNIC prefixes after maximum aggregation: 16845
Prefixes being announced from the APNIC address blocks: 38371
Unique aggregates announced from the APNIC address blocks: 18516
APNIC Region origin ASes present in the Internet Routing Table: 2605
APNIC Region origin ASes announcing only one prefix: 747
APNIC Region transit ASes present in the Internet Routing Table: 393
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 232866656
Equivalent to 13 /8s, 225 /16s and 67 /24s
Percentage of available APNIC address space announced: 72.8
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: 97815
Total ARIN prefixes after maximum aggregation: 57785
Prefixes being announced from the ARIN address blocks: 71820
Unique aggregates announced from the ARIN address blocks: 26683
ARIN Region origin ASes present in the Internet Routing Table: 10771
ARIN Region origin ASes announcing only one prefix: 4056
ARIN Region transit ASes present in the Internet Routing Table: 991
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 293764096
Equivalent to 17 /8s, 130 /16s and 124 /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: 38073
Total RIPE prefixes after maximum aggregation: 25462
Prefixes being announced from the RIPE address blocks: 35084
Unique aggregates announced from the RIPE address blocks: 23743
RIPE Region origin ASes present in the Internet Routing Table: 8151
RIPE Region origin ASes announcing only one prefix: 4283
RIPE Region transit ASes present in the Internet Routing Table: 1348
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 253913220
Equivalent to 15 /8s, 34 /16s and 104 /24s
Percentage of available RIPE address space announced: 79.7
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: 11531
Total LACNIC prefixes after maximum aggregation: 3722
Prefixes being announced from the LACNIC address blocks: 9681
Unique aggregates announced from the LACNIC address blocks: 5545
LACNIC Region origin ASes present in the Internet Routing Table: 698
LACNIC Region origin ASes announcing only one prefix: 230
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27418112
Equivalent to 1 /8s, 162 /16s and 94 /24s
Percentage of available LACNIC address space announced: 40.9
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: 2209
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1513
Unique aggregates announced from the AfriNIC address blocks: 970
AfriNIC Region origin ASes present in the Internet Routing Table: 155
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4107008
Equivalent to 0 /8s, 62 /16s and 171 /24s
Percentage of available AfriNIC address space announced: 12.2
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 1244 7244 229 CHINANET-BACKBONE
4755 936 259 75 Videsh Sanchar Nigam Ltd. Aut
9583 902 109 16 Sify Limited
4766 690 4435 304 Korea Telecom (KIX)
1221 614 1668 472 Telstra Pty Ltd
9498 573 211 68 BHARTI BT INTERNET LTD.
7545 544 124 69 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 488 7061 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 413 85 24 Reliance Infocom Ltd Internet
17557 396 31 177 Pakistan Telecom
4802 381 80 168 Wantree Development
17974 377 129 14 PT TELEKOMUNIKASI INDONESIA
9929 339 255 60 China Netcom Corp.
2907 336 1733 312 SINET Japan
17849 302 23 103 Telecommunications Technology
7474 299 211 228 SingTel Optus Pty Ltd
10139 277 19 5 Meridian Telekoms
9800 275 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1483 6280 948 AT&T WorldNet Services
4323 1316 743 261 Time Warner Telecom
721 1016 21998 313 DLA Systems Automation Center
6197 1010 625 472 BellSouth Network Solutions,
174 965 5787 901 Cogent Communications
19029 945 151 108 New Edge Networks
18566 943 272 8 Covad Communications
701 939 6765 773 UUNET Technologies, Inc.
2386 895 557 689 AT&T Data Communications Serv
1239 846 2788 600 Sprint
20115 714 617 382 Charter Communications
19262 710 2105 183 Verizon Global Networks
209 706 3687 550 Qwest
22773 663 1741 40 Cox Communications, Inc.
7011 639 218 415 Citizens Utilities
11492 627 87 23 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
702 572 1951 451 UUNET - Commercial IP service
3301 306 1343 293 TeliaNet Sweden
3352 306 1644 30 Ibernet, Internet Access Netw
3320 289 3989 242 Deutsche Telekom AG
8220 274 470 262 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
3246 237 504 227 Song Networks
6746 237 90 212 Dynamic Network Technologies,
8708 215 275 201 Romania Data Systems S.A.
24863 215 42 11 LINKdotNET AS number
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
3215 198 1680 93 France Telecom Transpac
30890 194 17 72 SC Kappa Invexim SRL
1257 192 740 168 SWIPnet Swedish IP Network
8866 183 37 15 Bulgarian Telecommunication C
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
9121 170 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1083 228 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 350 110 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 133 25 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 137 151 82 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 127 8 25 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
7738 98 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 167 60 7 TEDATA
6713 154 135 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 105 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
33766 21 2 1 Nyala Communications Pty Ltd
21280 20 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1316 1055 Time Warner Telecom
4134 1244 1015 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 902 886 Sify Limited
4755 936 861 Videsh Sanchar Nigam Ltd. Aut
19029 945 837 New Edge Networks
721 1016 703 DLA Systems Automation Center
22773 663 623 Cox Communications, Inc.
11492 627 604 Cable One
6197 1010 538 BellSouth Network Solutions,
19262 710 527 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
9498 573 505 BHARTI BT INTERNET LTD.
855 550 486 Canadian Research Network
8151 705 477 UniNet S.A. de C.V.
7545 544 475 TPG Internet Pty Ltd
3602 525 421 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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
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 /8:17 /9:9 /10:10 /11:28 /12:93
/13:201 /14:362 /15:706 /16:8862 /17:3250 /18:5356
/19:11734 /20:13251 /21:11512 /22:14823 /23:15899 /24:103034
/25:388 /26:335 /27:185 /28:65 /29:73 /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 794 1010 BellSouth Network Solutions,
7018 782 1483 AT&T WorldNet Services
9583 733 902 Sify Limited
4323 642 1316 Time Warner Telecom
11492 618 627 Cable One
2386 614 895 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 548 639 Citizens Utilities
4766 500 690 Korea Telecom (KIX)
855 424 550 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 404 435 PaeTec.net -a division of Pae
1239 390 846 Sprint
4755 367 936 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
702 355 572 UUNET - Commercial IP service
6198 355 509 BellSouth Network Solutions,
33588 349 367 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1617 13:1 15:16 16:3
17:3 18:4 20:41 24:740 25:1 32:58
38:230 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:25 58:186 59:226 60:183
61:857 62:767 63:1893 64:3176 65:2185 66:3052
67:615 68:663 69:1529 70:377 71:80 72:768
74:42 80:791 81:659 82:600 83:390 84:381
85:539 86:387 87:360 88:104 89:259 121:1
122:2 123:1 124:276 125:445 128:148 129:188
130:118 131:317 132:33 133:8 134:158 135:48
136:178 137:81 138:206 139:62 140:470 141:134
142:379 143:166 144:222 145:40 146:317 147:136
148:319 149:187 150:114 151:94 152:69 153:107
154:5 155:202 156:98 157:146 158:168 159:172
160:89 161:76 162:244 163:149 164:179 165:208
166:168 167:246 168:491 169:128 170:335 171:14
183:1 190:76 192:5723 193:3371 194:2638 195:1914
196:861 198:3910 199:3221 200:4488 201:977 202:6681
203:7020 204:3904 205:2034 206:2420 207:2907 208:2130
209:3779 210:1974 211:679 212:1269 213:1461 214:366
215:39 216:4185 217:1146 218:295 219:229 220:720
221:360 222:181
End of report
