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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 28 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 189076
Prefixes after maximum aggregation: 104265
Unique aggregates announced to Internet: 92673
Total ASes present in the Internet Routing Table: 22311
Origin-only ASes present in the Internet Routing Table: 19409
Origin ASes announcing only one prefix: 9295
Transit ASes present in the Internet Routing Table: 2902
Transit-only ASes present in the Internet Routing Table: 62
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: 18
Unregistered ASNs in the Routing Table: 16
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1539800040
Equivalent to 91 /8s, 199 /16s and 123 /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: 93663
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40063
Total APNIC prefixes after maximum aggregation: 16722
Prefixes being announced from the APNIC address blocks: 37772
Unique aggregates announced from the APNIC address blocks: 18447
APNIC Region origin ASes present in the Internet Routing Table: 2580
APNIC Region origin ASes announcing only one prefix: 747
APNIC Region transit ASes present in the Internet Routing Table: 394
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 226964832
Equivalent to 13 /8s, 135 /16s and 53 /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: 97489
Total ARIN prefixes after maximum aggregation: 57674
Prefixes being announced from the ARIN address blocks: 71548
Unique aggregates announced from the ARIN address blocks: 26489
ARIN Region origin ASes present in the Internet Routing Table: 10736
ARIN Region origin ASes announcing only one prefix: 4042
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: 292820992
Equivalent to 17 /8s, 116 /16s and 24 /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: 37950
Total RIPE prefixes after maximum aggregation: 25301
Prefixes being announced from the RIPE address blocks: 34970
Unique aggregates announced from the RIPE address blocks: 23530
RIPE Region origin ASes present in the Internet Routing Table: 8090
RIPE Region origin ASes announcing only one prefix: 4234
RIPE Region transit ASes present in the Internet Routing Table: 1328
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 250469764
Equivalent to 14 /8s, 237 /16s and 221 /24s
Percentage of available RIPE address space announced: 78.6
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: 11391
Total LACNIC prefixes after maximum aggregation: 3674
Prefixes being announced from the LACNIC address blocks: 9490
Unique aggregates announced from the LACNIC address blocks: 5541
LACNIC Region origin ASes present in the Internet Routing Table: 685
LACNIC Region origin ASes announcing only one prefix: 224
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 27179776
Equivalent to 1 /8s, 158 /16s and 187 /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: 2179
Total AfriNIC prefixes after maximum aggregation: 894
Prefixes being announced from the AfriNIC address blocks: 1495
Unique aggregates announced from the AfriNIC address blocks: 955
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: 4079360
Equivalent to 0 /8s, 62 /16s and 63 /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 1192 7096 218 CHINANET-BACKBONE
9583 910 109 16 Sify Limited
4755 856 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 688 4435 304 Korea Telecom (KIX)
1221 613 1668 471 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 377 80 172 Wantree Development
17557 364 28 168 Pakistan Telecom
17849 352 22 114 Telecommunications Technology
17974 342 118 17 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 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 1492 6217 961 AT&T WorldNet Services
4323 1294 736 254 Time Warner Telecom
6197 1007 623 474 BellSouth Network Solutions,
721 990 21961 303 DLA Systems Automation Center
174 966 5788 901 Cogent Communications
19029 949 151 109 New Edge Networks
18566 942 272 8 Covad Communications
701 940 6765 776 UUNET Technologies, Inc.
2386 887 523 682 AT&T Data Communications Serv
1239 847 2805 601 Sprint
19262 706 2106 171 Verizon Global Networks
20115 704 614 379 Charter Communications
209 703 3685 548 Qwest
22773 660 1741 40 Cox Communications, Inc.
7011 636 218 414 Citizens Utilities
11492 621 87 21 Cable One
852 580 1084 382 Telus Advanced Communications
6478 579 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
702 576 1952 454 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 237 89 211 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 216 275 201 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
6830 177 781 36 UPC Distribution Services
8866 174 37 15 Bulgarian Telecommunication C
5400 172 348 141 BT Ignite European Backbone
786 170 1762 170 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 701 1082 224 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 322 110 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 108 88 78 Global One Communicaoes Ltda
19429 107 59 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 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 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 31 7 21 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 22 4 4 Swift Global Kenya Ltd.Is an
33766 20 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 1192 974 CHINANET-BACKBONE
18566 942 934 Covad Communications
9583 910 894 Sify Limited
19029 949 840 New Edge Networks
4755 856 789 Videsh Sanchar Nigam Ltd. Aut
721 990 687 DLA Systems Automation Center
22773 660 620 Cox Communications, Inc.
11492 621 600 Cable One
19262 706 535 Verizon Global Networks
6197 1007 533 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 701 477 UniNet S.A. de C.V.
7545 533 463 TPG Internet Pty Ltd
3602 537 427 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36038 UNALLOCATED 63.85.158.0/24 701 UUNET Technologies,
36814 UNALLOCATED 65.69.244.0/22 22773 Cox Communications,
36817 UNALLOCATED 66.112.176.0/20 6539 GT Group Telecom Ser
36720 UNALLOCATED 66.242.112.0/20 15227 FiberNet of West Vir
36863 UNALLOCATED 67.98.233.0/24 6395 Broadwing Communicat
39943 UNALLOCATED 69.48.147.0/24 22691 ISPnet, Inc.
36814 UNALLOCATED 70.169.204.0/24 22773 Cox Communications,
36235 UNALLOCATED 71.40.60.0/24 7132 SBC Internet Service
36735 UNALLOCATED 72.11.222.0/23 6461 AboveNet Communicati
30679 UNALLOCATED 134.71.0.0/16 2152 California State Uni
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24481 UNALLOCATED 202.79.16.0/21 17494 Telecom Operator & I
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
36783 UNALLOCATED 208.66.220.0/22 19094 Adelphia Business So
36828 UNALLOCATED 208.67.80.0/21 3491 CAIS Internet
36235 UNALLOCATED 209.30.100.0/24 7132 SBC Internet Service
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 /16:8822 /17:3231 /18:5338
/19:11649 /20:13152 /21:11461 /22:14636 /23:15814 /24:102502
/25:366 /26:271 /27:189 /28:65 /29:71 /30:48
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 925 942 Covad Communications
19029 880 949 New Edge Networks
6197 795 1007 BellSouth Network Solutions,
7018 785 1492 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 498 688 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 413 530 CenturyTel Internet Holdings,
15270 401 432 PaeTec.net -a division of Pae
1239 391 847 Sprint
6517 362 393 Yipes Communications, Inc.
702 358 576 UUNET - Commercial IP service
6198 356 509 BellSouth Network Solutions,
17849 352 352 Telecommunications Technology
33588 348 366 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1625 13:1 15:14 16:3
17:3 18:4 20:43 24:733 25:1 30:2
32:58 38:223 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:176 59:201
60:182 61:851 62:766 63:1918 64:3185 65:2251
66:3024 67:611 68:668 69:1522 70:364 71:87
72:729 73:23 74:38 80:782 81:649 82:606
83:393 84:391 85:574 86:395 87:339 88:123
89:216 124:287 125:407 128:138 129:190 130:117
131:316 132:33 133:8 134:158 135:48 136:178
137:75 138:208 139:69 140:470 141:130 142:381
143:165 144:224 145:39 146:329 147:136 148:307
149:187 150:114 151:90 152:68 153:101 154:5
155:201 156:100 157:149 158:167 159:176 160:89
161:76 162:245 163:145 164:178 165:206 166:166
167:244 168:489 169:128 170:337 171:14 183:1
190:73 192:5763 193:3374 194:2633 195:1890 196:850
198:3902 199:3215 200:4445 201:948 202:6648 203:6927
204:3804 205:2063 206:2401 207:2890 208:2124 209:3775
210:1974 211:677 212:1244 213:1465 214:357 215:40
216:4135 217:1156 218:286 219:202 220:708 221:359
222:162
End of report
