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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 01 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 189401
Prefixes after maximum aggregation: 104486
Unique aggregates announced to Internet: 92030
Total ASes present in the Internet Routing Table: 22339
Origin-only ASes present in the Internet Routing Table: 19430
Origin ASes announcing only one prefix: 9297
Transit ASes present in the Internet Routing Table: 2909
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 18
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1540965864
Equivalent to 91 /8s, 217 /16s and 69 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93784
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40318
Total APNIC prefixes after maximum aggregation: 16801
Prefixes being announced from the APNIC address blocks: 38034
Unique aggregates announced from the APNIC address blocks: 17724
APNIC Region origin ASes present in the Internet Routing Table: 2581
APNIC Region origin ASes announcing only one prefix: 735
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 227501152
Equivalent to 13 /8s, 143 /16s and 100 /24s
Percentage of available APNIC address space announced: 71.1
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: 97581
Total ARIN prefixes after maximum aggregation: 57726
Prefixes being announced from the ARIN address blocks: 71598
Unique aggregates announced from the ARIN address blocks: 26495
ARIN Region origin ASes present in the Internet Routing Table: 10741
ARIN Region origin ASes announcing only one prefix: 4044
ARIN Region transit ASes present in the Internet Routing Table: 985
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292850432
Equivalent to 17 /8s, 116 /16s and 139 /24s
Percentage of available ARIN address space announced: 75.9
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: 37942
Total RIPE prefixes after maximum aggregation: 25374
Prefixes being announced from the RIPE address blocks: 34947
Unique aggregates announced from the RIPE address blocks: 23585
RIPE Region origin ASes present in the Internet Routing Table: 8108
RIPE Region origin ASes announcing only one prefix: 4242
RIPE Region transit ASes present in the Internet Routing Table: 1337
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 250950276
Equivalent to 14 /8s, 245 /16s and 50 /24s
Percentage of available RIPE address space announced: 78.7
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: 11375
Total LACNIC prefixes after maximum aggregation: 3687
Prefixes being announced from the LACNIC address blocks: 9484
Unique aggregates announced from the LACNIC address blocks: 5549
LACNIC Region origin ASes present in the Internet Routing Table: 694
LACNIC Region origin ASes announcing only one prefix: 229
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 27160064
Equivalent to 1 /8s, 158 /16s and 110 /24s
Percentage of available LACNIC address space announced: 40.5
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: 2181
Total AfriNIC prefixes after maximum aggregation: 898
Prefixes being announced from the AfriNIC address blocks: 1500
Unique aggregates announced from the AfriNIC address blocks: 959
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4108032
Equivalent to 0 /8s, 62 /16s and 175 /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 1199 7100 219 CHINANET-BACKBONE
9583 878 109 16 Sify Limited
4755 852 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 688 4435 304 Korea Telecom (KIX)
1221 613 1668 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 533 124 70 TPG Internet Pty Ltd
17488 514 32 9 Hathway IP Over Cable Interne
17676 486 7029 110 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 411 85 24 Reliance Infocom Ltd Internet
17557 391 30 178 Pakistan Telecom
4802 377 80 172 Wantree Development
17849 352 22 114 Telecommunications Technology
17974 348 119 18 PT TELEKOMUNIKASI INDONESIA
2907 335 1733 312 SINET Japan
9929 325 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 274 410 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 1489 6216 954 AT&T WorldNet Services
4323 1296 736 253 Time Warner Telecom
6197 1006 622 472 BellSouth Network Solutions,
721 1004 21977 307 DLA Systems Automation Center
174 966 5788 902 Cogent Communications
19029 947 151 109 New Edge Networks
701 942 6765 778 UUNET Technologies, Inc.
18566 942 272 8 Covad Communications
2386 889 523 683 AT&T Data Communications Serv
1239 847 2789 601 Sprint
19262 707 2106 171 Verizon Global Networks
209 705 3687 550 Qwest
20115 703 612 378 Charter Communications
22773 659 1741 40 Cox Communications, Inc.
7011 637 218 415 Citizens Utilities
11492 631 87 21 Cable One
852 578 1084 380 Telus Advanced Communications
6478 570 1543 337 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 574 1951 452 UUNET - Commercial IP service
3352 308 1644 30 Ibernet, Internet Access Netw
3301 307 1071 294 TeliaNet Sweden
3320 287 3989 240 Deutsche Telekom AG
8220 278 471 266 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
6746 237 89 211 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 217 275 202 Romania Data Systems S.A.
24863 214 42 10 LINKdotNET AS number
8551 200 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 192 740 167 SWIPnet Swedish IP Network
30890 190 17 71 SC Kappa Invexim SRL
8866 178 37 15 Bulgarian Telecommunication C
5400 172 348 141 BT Ignite European Backbone
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
3300 168 171 98 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 703 1082 223 UniNet S.A. de C.V.
22047 418 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 325 110 86 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 171 80 24 Telecom Argentina Stet-France
21826 133 17 23 INTERCABLE
6503 132 150 81 AVANTEL, S.A.
11556 132 80 4 Cable-Wireless Panama
19169 129 8 21 Telconet
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
19429 109 59 44 E.T.B.
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
14522 101 16 9 SatNet S.A.
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 803 233 The Internet Solution
8452 167 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 104 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 54 84 4 Nile Online
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 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
16637 24 14 22 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
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1296 1043 Time Warner Telecom
4134 1199 980 CHINANET-BACKBONE
18566 942 934 Covad Communications
9583 878 862 Sify Limited
19029 947 838 New Edge Networks
4755 852 785 Videsh Sanchar Nigam Ltd. Aut
721 1004 697 DLA Systems Automation Center
22773 659 619 Cox Communications, Inc.
11492 631 610 Cable One
19262 707 536 Verizon Global Networks
6197 1006 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
17488 514 505 Hathway IP Over Cable Interne
9498 566 499 BHARTI BT INTERNET LTD.
855 553 489 Canadian Research Network
8151 703 480 UniNet S.A. de C.V.
7545 533 463 TPG Internet Pty Ltd
3602 532 427 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36672 UNALLOCATED 12.161.230.0/24 7018 AT&T WorldNet Servic
36802 UNALLOCATED 64.27.32.0/20 6395 Broadwing Communicat
36790 UNALLOCATED 72.248.109.0/24 17113 Commrail, Inc.
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
36839 UNALLOCATED 208.67.64.0/21 25973 Mzima Networks, Inc.
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 /8:19 /9:9 /10:9 /11:28 /12:91
/13:200 /14:360 /15:705 /16:8831 /17:3234 /18:5362
/19:11689 /20:13199 /21:11473 /22:14668 /23:15805 /24:102648
/25:367 /26:288 /27:187 /28:67 /29:71 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 925 942 Covad Communications
19029 878 947 New Edge Networks
6197 794 1006 BellSouth Network Solutions,
7018 780 1489 AT&T WorldNet Services
9583 708 878 Sify Limited
4323 635 1296 Time Warner Telecom
11492 622 631 Cable One
2386 612 889 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 546 637 Citizens Utilities
4766 498 688 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 401 432 PaeTec.net -a division of Pae
1239 391 847 Sprint
6517 363 394 Yipes Communications, Inc.
702 357 574 UUNET - Commercial IP service
6198 356 509 BellSouth Network Solutions,
17849 352 352 Telecommunications Technology
8151 348 703 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1623 13:1 15:14 16:3
17:3 18:4 20:43 24:736 25:1 32:58
38:223 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:25 58:178 59:199 60:171
61:861 62:765 63:1931 64:3178 65:2255 66:3044
67:612 68:667 69:1525 70:367 71:80 72:736
74:39 80:777 81:653 82:590 83:382 84:391
85:544 86:398 87:353 88:87 89:234 124:295
125:463 128:154 129:191 130:117 131:316 132:33
133:8 134:159 135:48 136:178 137:74 138:205
139:70 140:470 141:129 142:381 143:165 144:222
145:39 146:327 147:136 148:311 149:188 150:114
151:90 152:69 153:107 154:5 155:201 156:100
157:149 158:167 159:172 160:89 161:76 162:245
163:147 164:178 165:197 166:166 167:245 168:491
169:128 170:337 171:14 183:1 190:75 192:5746
193:3374 194:2633 195:1890 196:850 198:3906 199:3215
200:4444 201:948 202:6663 203:6976 204:3810 205:2061
206:2412 207:2901 208:2128 209:3780 210:1952 211:675
212:1258 213:1463 214:354 215:40 216:4157 217:1157
218:290 219:220 220:712 221:354 222:162
End of report
