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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 14 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 190279
Prefixes after maximum aggregation: 104688
Unique aggregates announced to Internet: 93243
Total ASes present in the Internet Routing Table: 22424
Origin-only ASes present in the Internet Routing Table: 19506
Origin ASes announcing only one prefix: 9354
Transit ASes present in the Internet Routing Table: 2918
Transit-only ASes present in the Internet Routing Table: 59
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: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1532201192
Equivalent to 91 /8s, 83 /16s and 136 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94161
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40757
Total APNIC prefixes after maximum aggregation: 16891
Prefixes being announced from the APNIC address blocks: 38467
Unique aggregates announced from the APNIC address blocks: 18595
APNIC Region origin ASes present in the Internet Routing Table: 2602
APNIC Region origin ASes announcing only one prefix: 743
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: 232496736
Equivalent to 13 /8s, 219 /16s and 158 /24s
Percentage of available APNIC address space announced: 72.7
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: 97802
Total ARIN prefixes after maximum aggregation: 57783
Prefixes being announced from the ARIN address blocks: 71778
Unique aggregates announced from the ARIN address blocks: 26666
ARIN Region origin ASes present in the Internet Routing Table: 10762
ARIN Region origin ASes announcing only one prefix: 4052
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: 293706240
Equivalent to 17 /8s, 129 /16s and 154 /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: 38001
Total RIPE prefixes after maximum aggregation: 25409
Prefixes being announced from the RIPE address blocks: 35031
Unique aggregates announced from the RIPE address blocks: 23741
RIPE Region origin ASes present in the Internet Routing Table: 8151
RIPE Region origin ASes announcing only one prefix: 4284
RIPE Region transit ASes present in the Internet Routing Table: 1349
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 252842628
Equivalent to 15 /8s, 18 /16s and 18 /24s
Percentage of available RIPE address space announced: 79.3
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: 11520
Total LACNIC prefixes after maximum aggregation: 3717
Prefixes being announced from the LACNIC address blocks: 9625
Unique aggregates announced from the LACNIC address blocks: 5534
LACNIC Region origin ASes present in the Internet Routing Table: 697
LACNIC Region origin ASes announcing only one prefix: 231
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: 27329280
Equivalent to 1 /8s, 161 /16s and 3 /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: 2197
Total AfriNIC prefixes after maximum aggregation: 888
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: 26
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4101376
Equivalent to 0 /8s, 62 /16s and 149 /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 1239 7212 228 CHINANET-BACKBONE
4755 934 258 74 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 571 211 67 BHARTI BT INTERNET LTD.
7545 544 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 487 7045 109 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 350 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1733 312 SINET Japan
9929 328 255 60 China Netcom Corp.
7474 299 211 228 SingTel Optus Pty Ltd
9800 275 410 67 CHINA UNICOM
4837 267 2994 113 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1483 6279 948 AT&T WorldNet Services
4323 1311 740 259 Time Warner Telecom
721 1016 21998 313 DLA Systems Automation Center
6197 1008 625 471 BellSouth Network Solutions,
174 968 5787 903 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 713 617 381 Charter Communications
19262 709 2103 183 Verizon Global Networks
209 706 3687 550 Qwest
22773 663 1741 40 Cox Communications, Inc.
7011 639 218 415 Citizens Utilities
11492 624 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 305 1644 30 Ibernet, Internet Access Netw
3320 288 3989 241 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 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 200 1680 93 France Telecom Transpac
30890 192 17 71 SC Kappa Invexim SRL
1257 190 740 166 SWIPnet Swedish IP Network
8866 181 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 171 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 707 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 267 133 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 166 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
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 1311 1052 Time Warner Telecom
4134 1239 1011 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 902 886 Sify Limited
4755 934 860 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 624 601 Cable One
6197 1008 537 BellSouth Network Solutions,
19262 709 526 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
9498 571 504 BHARTI BT INTERNET LTD.
855 550 486 Canadian Research Network
8151 707 482 UniNet S.A. de C.V.
7545 544 474 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 419 408 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
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.1.1.0/24 9121 TTnet Autonomous System
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 /12:92
/13:201 /14:362 /15:706 /16:8857 /17:3255 /18:5361
/19:11749 /20:13261 /21:11553 /22:14758 /23:15913 /24:103044
/25:383 /26:316 /27:182 /28:66 /29:66 /30:50
/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 782 1483 AT&T WorldNet Services
9583 733 902 Sify Limited
4323 641 1311 Time Warner Telecom
11492 615 624 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 366 934 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
17849 359 359 Telecommunications Technology
702 355 572 UUNET - Commercial IP service
6198 355 509 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:9 8:42 12:1617 13:1 15:16
16:3 17:3 18:4 20:41 24:734 25:1
32:58 38:229 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:186 59:225
60:184 61:856 62:762 63:1910 64:3179 65:2185
66:3053 67:614 68:663 69:1531 70:378 71:81
72:758 74:42 80:792 81:653 82:599 83:399
84:389 85:545 86:346 87:359 88:103 89:251
122:1 124:292 125:498 128:152 129:188 130:118
131:317 132:33 133:8 134:158 135:48 136:178
137:82 138:206 139:62 140:469 141:133 142:379
143:166 144:223 145:40 146:328 147:136 148:321
149:188 150:114 151:94 152:69 153:107 154:5
155:202 156:98 157:152 158:168 159:172 160:89
161:76 162:244 163:150 164:177 165:208 166:168
167:246 168:492 169:128 170:337 171:14 183:1
190:78 192:5747 193:3363 194:2642 195:1905 196:855
198:3909 199:3214 200:4493 201:979 202:6691 203:7024
204:3897 205:2038 206:2424 207:2905 208:2129 209:3774
210:1975 211:687 212:1229 213:1459 214:367 215:40
216:4183 217:1142 218:292 219:230 220:719 221:360
222:158
End of report
