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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 11 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 190092
Prefixes after maximum aggregation: 104591
Unique aggregates announced to Internet: 93143
Total ASes present in the Internet Routing Table: 22406
Origin-only ASes present in the Internet Routing Table: 19494
Origin ASes announcing only one prefix: 9344
Transit ASes present in the Internet Routing Table: 2912
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: 1543529704
Equivalent to 92 /8s, 0 /16s and 100 /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: 94162
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40612
Total APNIC prefixes after maximum aggregation: 16813
Prefixes being announced from the APNIC address blocks: 38330
Unique aggregates announced from the APNIC address blocks: 18504
APNIC Region origin ASes present in the Internet Routing Table: 2597
APNIC Region origin ASes announcing only one prefix: 744
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: 227690592
Equivalent to 13 /8s, 146 /16s and 72 /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: 97739
Total ARIN prefixes after maximum aggregation: 57770
Prefixes being announced from the ARIN address blocks: 71743
Unique aggregates announced from the ARIN address blocks: 26662
ARIN Region origin ASes present in the Internet Routing Table: 10760
ARIN Region origin ASes announcing only one prefix: 4050
ARIN Region transit ASes present in the Internet Routing Table: 988
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 293588992
Equivalent to 17 /8s, 127 /16s and 208 /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: 25415
Prefixes being announced from the RIPE address blocks: 35084
Unique aggregates announced from the RIPE address blocks: 23711
RIPE Region origin ASes present in the Internet Routing Table: 8140
RIPE Region origin ASes announcing only one prefix: 4276
RIPE Region transit ASes present in the Internet Routing Table: 1347
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 252490628
Equivalent to 15 /8s, 12 /16s and 179 /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: 11483
Total LACNIC prefixes after maximum aggregation: 3706
Prefixes being announced from the LACNIC address blocks: 9588
Unique aggregates announced from the LACNIC address blocks: 5551
LACNIC Region origin ASes present in the Internet Routing Table: 696
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: 27321600
Equivalent to 1 /8s, 160 /16s and 229 /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: 2185
Total AfriNIC prefixes after maximum aggregation: 887
Prefixes being announced from the AfriNIC address blocks: 1502
Unique aggregates announced from the AfriNIC address blocks: 966
AfriNIC Region origin ASes present in the Internet Routing Table: 153
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4097536
Equivalent to 0 /8s, 62 /16s and 134 /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 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 613 1668 471 Telstra Pty Ltd
9498 574 211 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
17557 397 31 178 Pakistan Telecom
4802 381 80 168 Wantree Development
17849 359 22 114 Telecommunications Technology
17974 346 129 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 1476 6135 946 AT&T WorldNet Services
4323 1310 740 259 Time Warner Telecom
721 1011 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
701 936 6748 770 UUNET Technologies, Inc.
2386 894 557 688 AT&T Data Communications Serv
1239 846 2788 600 Sprint
20115 712 617 380 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
3215 200 1680 93 France Telecom Transpac
8551 200 198 24 Bezeq International
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 171 348 140 BT Ignite European Backbone
9121 170 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 706 1083 225 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 166 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 103 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
15475 61 84 4 Nile Online
20928 59 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
12455 26 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
16637 25 18 23 Johnnic e-Ventures
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
21491 21 17 2 UTL On-line is RF broadband I
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 1011 698 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
9498 574 507 BHARTI BT INTERNET LTD.
5668 529 506 CenturyTel Internet Holdings,
855 550 486 Canadian Research Network
8151 706 481 UniNet S.A. de C.V.
7545 544 474 TPG Internet Pty Ltd
3602 519 415 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 /16:8854 /17:3246 /18:5350
/19:11723 /20:13267 /21:11535 /22:14732 /23:15886 /24:102964
/25:388 /26:319 /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 1476 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 363 394 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 38:226 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:185 59:217
60:183 61:859 62:774 63:1916 64:3174 65:2187
66:3056 67:615 68:664 69:1530 70:377 71:80
72:754 74:41 80:788 81:649 82:593 83:393
84:388 85:542 86:387 87:359 88:97 89:242
124:295 125:498 128:155 129:190 130:116 131:318
132:33 133:8 134:159 135:48 136:178 137:82
138:205 139:62 140:465 141:130 142:378 143:165
144:221 145:40 146:317 147:136 148:318 149:188
150:114 151:94 152:69 153:107 154:5 155:202
156:98 157:147 158:168 159:173 160:89 161:76
162:245 163:149 164:179 165:208 166:168 167:246
168:492 169:128 170:338 171:14 183:1 190:75
192:5742 193:3370 194:2641 195:1909 196:859 198:3909
199:3217 200:4468 201:980 202:6642 203:7007 204:3890
205:2036 206:2421 207:2901 208:2131 209:3773 210:1962
211:684 212:1261 213:1468 214:360 215:40 216:4184
217:1158 218:291 219:235 220:717 221:357 222:158
End of report
