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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 18 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175051
Prefixes after maximum aggregation: 98805
Unique aggregates announced to Internet: 84860
Total ASes present in the Internet Routing Table: 20928
Origin-only ASes present in the Internet Routing Table: 18213
Origin ASes announcing only one prefix: 8626
Transit ASes present in the Internet Routing Table: 2715
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1459685760
Equivalent to 87 /8s, 1 /16s and 9 /24s
Percentage of available address space announced: 39.4
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84051
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36578
Total APNIC prefixes after maximum aggregation: 15838
Prefixes being announced from the APNIC address blocks: 34354
Unique aggregates announced from the APNIC address blocks: 16837
APNIC Region origin ASes present in the Internet Routing Table: 2405
APNIC Region origin ASes announcing only one prefix: 703
APNIC Region transit ASes present in the Internet Routing Table: 369
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 205884096
Equivalent to 12 /8s, 69 /16s and 138 /24s
Percentage of available APNIC address space announced: 76.4
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, 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: 92748
Total ARIN prefixes after maximum aggregation: 55787
Prefixes being announced from the ARIN address blocks: 72243
Unique aggregates announced from the ARIN address blocks: 27515
ARIN Region origin ASes present in the Internet Routing Table: 10349
ARIN Region origin ASes announcing only one prefix: 3838
ARIN Region transit ASes present in the Internet Routing Table: 968
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 274997248
Equivalent to 16 /8s, 100 /16s and 32 /24s
Percentage of available ARIN address space announced: 68.3
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 34095
Total RIPE prefixes after maximum aggregation: 23050
Prefixes being announced from the RIPE address blocks: 31069
Unique aggregates announced from the RIPE address blocks: 20815
RIPE Region origin ASes present in the Internet Routing Table: 7308
RIPE Region origin ASes announcing only one prefix: 3831
RIPE Region transit ASes present in the Internet Routing Table: 1192
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 223954944
Equivalent to 13 /8s, 89 /16s and 72 /24s
Percentage of available RIPE address space announced: 66.7
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9836
Total LACNIC prefixes after maximum aggregation: 3286
Prefixes being announced from the LACNIC address blocks: 8135
Unique aggregates announced from the LACNIC address blocks: 4766
LACNIC Region origin ASes present in the Internet Routing Table: 650
LACNIC Region origin ASes announcing only one prefix: 210
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22749184
Equivalent to 1 /8s, 91 /16s and 32 /24s
Percentage of available LACNIC address space announced: 33.9
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: 1787
Total AfriNIC prefixes after maximum aggregation: 844
Prefixes being announced from the AfriNIC address blocks: 1144
Unique aggregates announced from the AfriNIC address blocks: 833
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 20
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2866432
Equivalent to 0 /8s, 43 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1006 6332 216 CHINANET-BACKBONE
9583 828 77 12 Sify Limited
4755 751 259 68 Videsh Sanchar Nigam Ltd. Aut
1221 737 1342 513 Telstra Pty Ltd
4766 634 3927 285 Korea Telecom (KIX)
7545 516 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 394 215 62 BHARTI BT INTERNET LTD.
9443 392 87 78 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
2907 340 1764 317 SINET Japan
4802 335 73 153 Wantree Development
7474 333 258 229 SingTel Optus Pty Ltd
17557 333 25 161 Pakistan Telecom
9929 326 216 46 China Netcom Corp.
18302 307 142 169 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 273 65 16 PT TELEKOMUNIKASI INDONESIA
18101 269 68 19 Reliance Infocom Ltd Internet
703 256 259 209 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6317 957 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1091 5580 981 Cogent Communications
721 1071 21938 308 DLA Systems Automation Center
701 983 8134 827 UUNET Technologies, Inc.
6197 961 407 497 BellSouth Network Solutions,
2386 927 545 693 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 850 2804 600 Sprint
209 657 3621 520 Qwest
20115 651 530 342 Charter Communications
11492 603 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 558 247 65 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
19262 552 1561 134 Verizon Global Networks
3602 541 126 103 Sprint Canada, Inc.
3356 520 10633 404 Level 3 Communications, LLC
6198 494 610 209 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 612 1960 480 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 235 275 221 Romania Data Systems S.A.
3246 229 477 222 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 194 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 162 317 135 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 158 184 93 AUCS Communications Services
8866 157 37 9 Bulgarian Telecommunication C
12479 150 322 5 Uni2 Autonomous System
24863 149 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 391 692 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 88 68 Servicios Alestra S.A de C.V
11664 221 22 29 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 171 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 134 52 9 Mega Cable S.A. de C.V.
11556 129 64 2 Cable-Wireless Panama
19169 128 8 20 Telconet
10481 121 48 8 Prima S.A.
6505 120 89 85 Global One Communicaoes Ltda
6503 113 148 74 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
14522 110 12 8 SatNet S.A.
11311 99 8 10 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 227 The Internet Solution
8452 142 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 116 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
24835 58 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 21 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1191 958 Time Warner Telecom
18566 877 870 Covad Communications
9583 828 816 Sify Limited
4134 1006 790 CHINANET-BACKBONE
721 1071 763 DLA Systems Automation Center
4755 751 683 Videsh Sanchar Nigam Ltd. Aut
11492 603 593 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 558 493 Canadian Research Network
6197 961 464 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 516 445 TPG Internet Pty Ltd
3602 541 438 Sprint Canada, Inc.
19262 552 418 Verizon Global Networks
17676 470 370 Softbank BB Corp.
6467 403 356 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
4766 634 349 Korea Telecom (KIX)
812 367 337 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
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 /9:5 /10:8 /11:17 /12:80
/13:187 /14:339 /15:664 /16:8591 /17:2873 /18:4850
/19:11008 /20:12132 /21:10190 /22:13437 /23:14614 /24:95100
/25:342 /26:289 /27:193 /28:32 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 861 877 Covad Communications
6197 783 961 BellSouth Network Solutions,
7018 726 1475 AT&T WorldNet Services
9583 650 828 Sify Limited
2386 643 927 AT&T Data Communications Serv
11492 595 603 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 440 634 Korea Telecom (KIX)
855 430 558 Canadian Research Network
7011 398 460 Citizens Utilities
702 392 612 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 366 850 Sprint
6198 354 494 BellSouth Network Solutions,
6517 323 349 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 291 307 SK Global co., Ltd
701 284 983 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:36 12:1624 13:1 15:11 16:3
17:3 18:3 20:42 24:662 30:2 32:64
38:178 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:98 59:90 60:145 61:796
62:781 63:1897 64:2931 65:2128 66:2890 67:639
68:683 69:1316 70:229 71:34 72:454 80:678
81:594 82:496 83:295 84:304 85:366 86:186
87:92 125:64 128:163 129:169 130:96 131:300
132:35 133:1 134:149 135:45 136:168 137:69
138:173 139:71 140:437 141:146 142:399 143:144
144:219 145:34 146:302 147:131 148:269 149:194
150:108 151:72 152:111 153:93 154:5 155:153
156:84 157:119 158:146 159:178 160:85 161:76
162:239 163:147 164:190 165:185 166:146 167:246
168:454 169:144 170:312 171:12 192:5747 193:3356
194:2436 195:1631 196:706 198:3932 199:3261 200:4245
201:428 202:6220 203:6594 204:3830 205:2054 206:2440
207:2921 208:2030 209:3461 210:1771 211:846 212:1212
213:1362 214:308 215:41 216:3848 217:1160 218:216
219:128 220:537 221:312 222:127
End of report
