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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 26 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188921
Prefixes after maximum aggregation: 104253
Unique aggregates announced to Internet: 92650
Total ASes present in the Internet Routing Table: 22285
Origin-only ASes present in the Internet Routing Table: 19385
Origin ASes announcing only one prefix: 9272
Transit ASes present in the Internet Routing Table: 2900
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: 18
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1539866600
Equivalent to 91 /8s, 200 /16s and 127 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93614
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39950
Total APNIC prefixes after maximum aggregation: 16730
Prefixes being announced from the APNIC address blocks: 37643
Unique aggregates announced from the APNIC address blocks: 18450
APNIC Region origin ASes present in the Internet Routing Table: 2574
APNIC Region origin ASes announcing only one prefix: 736
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: 15
Number of APNIC addresses announced to Internet: 226909792
Equivalent to 13 /8s, 134 /16s and 94 /24s
Percentage of available APNIC address space announced: 71.0
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: 97497
Total ARIN prefixes after maximum aggregation: 57689
Prefixes being announced from the ARIN address blocks: 71506
Unique aggregates announced from the ARIN address blocks: 26475
ARIN Region origin ASes present in the Internet Routing Table: 10725
ARIN Region origin ASes announcing only one prefix: 4028
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: 292744448
Equivalent to 17 /8s, 114 /16s and 237 /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: 37922
Total RIPE prefixes after maximum aggregation: 25269
Prefixes being announced from the RIPE address blocks: 34929
Unique aggregates announced from the RIPE address blocks: 23520
RIPE Region origin ASes present in the Internet Routing Table: 8078
RIPE Region origin ASes announcing only one prefix: 4233
RIPE Region transit ASes present in the Internet Routing Table: 1322
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 250321540
Equivalent to 14 /8s, 235 /16s and 154 /24s
Percentage of available RIPE address space announced: 78.5
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: 3670
Prefixes being announced from the LACNIC address blocks: 9473
Unique aggregates announced from the LACNIC address blocks: 5534
LACNIC Region origin ASes present in the Internet Routing Table: 687
LACNIC Region origin ASes announcing only one prefix: 227
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: 16
Number of LACNIC addresses announced to Internet: 27162880
Equivalent to 1 /8s, 158 /16s and 121 /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: 2173
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1494
Unique aggregates announced from the AfriNIC address blocks: 952
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 48
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: 4078592
Equivalent to 0 /8s, 62 /16s and 60 /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 1171 7096 218 CHINANET-BACKBONE
9583 910 109 16 Sify Limited
4755 854 257 66 Videsh Sanchar Nigam Ltd. Aut
4766 686 4435 304 Korea Telecom (KIX)
1221 615 1684 473 Telstra Pty Ltd
9498 564 211 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
4802 380 80 176 Wantree Development
17557 365 29 168 Pakistan Telecom
17849 352 22 114 Telecommunications Technology
17974 343 118 17 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
9929 325 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 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 1496 6217 962 AT&T WorldNet Services
4323 1294 736 254 Time Warner Telecom
6197 1007 622 473 BellSouth Network Solutions,
721 1001 21977 306 DLA Systems Automation Center
174 956 5787 900 Cogent Communications
19029 949 151 109 New Edge Networks
18566 940 272 8 Covad Communications
701 938 6765 775 UUNET Technologies, Inc.
2386 887 523 682 AT&T Data Communications Serv
1239 847 2805 601 Sprint
19262 705 2106 170 Verizon Global Networks
20115 704 614 379 Charter Communications
209 703 3685 548 Qwest
22773 661 1743 41 Cox Communications, Inc.
7011 636 218 414 Citizens Utilities
11492 621 87 21 Cable One
852 581 1084 382 Telus Advanced Communications
6478 578 1544 342 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
702 577 1952 455 UUNET - Commercial IP service
3301 308 1072 294 TeliaNet Sweden
3352 308 1644 30 Ibernet, Internet Access Netw
8220 293 472 266 COLT Telecommunications
3320 287 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
6746 236 89 210 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 219 276 202 Romania Data Systems S.A.
24863 213 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 193 740 168 SWIPnet Swedish IP Network
8764 192 65 32 LIETUVOS-TELEKOMAS Autonomous
30890 190 17 67 SC Kappa Invexim SRL
8866 181 37 16 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
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1083 224 UniNet S.A. de C.V.
22047 417 158 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 170 80 25 Telecom Argentina Stet-France
6503 135 150 79 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
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 107 58 45 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 168 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 105 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 29 7 20 AS Number for Telecom Algeria
12455 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
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 1294 1040 Time Warner Telecom
4134 1171 953 CHINANET-BACKBONE
18566 940 932 Covad Communications
9583 910 894 Sify Limited
19029 949 840 New Edge Networks
4755 854 788 Videsh Sanchar Nigam Ltd. Aut
721 1001 695 DLA Systems Automation Center
22773 661 620 Cox Communications, Inc.
11492 621 600 Cable One
19262 705 535 Verizon Global Networks
6197 1007 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 530 507 CenturyTel Internet Holdings,
17488 514 505 Hathway IP Over Cable Interne
9498 564 497 BHARTI BT INTERNET LTD.
855 553 489 Canadian Research Network
8151 705 481 UniNet S.A. de C.V.
7545 533 463 TPG Internet Pty Ltd
3602 539 429 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36814 UNALLOCATED 65.69.244.0/22 22773 Cox Communications,
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 /8:18 /9:9 /10:9 /11:28 /12:91
/13:200 /14:360 /15:706 /16:8830 /17:3225 /18:5323
/19:11648 /20:13137 /21:11432 /22:14633 /23:15805 /24:102418
/25:365 /26:271 /27:191 /28:63 /29:70 /30:49
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 923 940 Covad Communications
19029 880 949 New Edge Networks
6197 795 1007 BellSouth Network Solutions,
7018 788 1496 AT&T WorldNet Services
9583 739 910 Sify Limited
4323 636 1294 Time Warner Telecom
11492 612 621 Cable One
2386 610 887 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 545 636 Citizens Utilities
4766 496 686 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 413 530 CenturyTel Internet Holdings,
15270 400 431 PaeTec.net -a division of Pae
1239 389 847 Sprint
6517 361 392 Yipes Communications, Inc.
702 358 577 UUNET - Commercial IP service
6198 356 508 BellSouth Network Solutions,
17849 352 352 Telecommunications Technology
8151 349 705 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1624 13:1 15:14 16:3
17:3 18:4 20:43 24:734 25:1 30:2
32:58 38:219 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:176 59:200
60:169 61:855 62:762 63:1919 64:3188 65:2257
66:3022 67:611 68:668 69:1515 70:363 71:87
72:722 73:23 74:38 80:783 81:648 82:614
83:378 84:386 85:577 86:395 87:338 88:122
89:215 124:287 125:408 128:150 129:190 130:116
131:316 132:33 133:8 134:158 135:48 136:178
137:75 138:208 139:69 140:469 141:130 142:381
143:165 144:223 145:39 146:328 147:136 148:310
149:187 150:114 151:90 152:69 153:107 154:5
155:202 156:100 157:148 158:167 159:175 160:89
161:76 162:245 163:147 164:178 165:207 166:165
167:245 168:490 169:128 170:337 171:14 183:1
190:73 192:5764 193:3385 194:2627 195:1886 196:848
198:3903 199:3218 200:4440 201:942 202:6618 203:6915
204:3804 205:2056 206:2411 207:2888 208:2118 209:3777
210:1958 211:676 212:1244 213:1468 214:358 215:40
216:4132 217:1156 218:281 219:204 220:712 221:358
222:162
End of report
