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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 174171
Prefixes after maximum aggregation: 98421
Unique aggregates announced to Internet: 84202
Total ASes present in the Internet Routing Table: 20811
Origin-only ASes present in the Internet Routing Table: 18099
Origin ASes announcing only one prefix: 8576
Transit ASes present in the Internet Routing Table: 2712
Transit-only ASes present in the Internet Routing Table: 75
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1455435616
Equivalent to 86 /8s, 192 /16s and 47 /24s
Percentage of available address space announced: 39.3
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 83584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36192
Total APNIC prefixes after maximum aggregation: 15828
Prefixes being announced from the APNIC address blocks: 33973
Unique aggregates announced from the APNIC address blocks: 16817
APNIC Region origin ASes present in the Internet Routing Table: 2385
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204591232
Equivalent to 12 /8s, 49 /16s and 208 /24s
Percentage of available APNIC address space announced: 75.9
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: 92588
Total ARIN prefixes after maximum aggregation: 55614
Prefixes being announced from the ARIN address blocks: 72181
Unique aggregates announced from the ARIN address blocks: 27234
ARIN Region origin ASes present in the Internet Routing Table: 10306
ARIN Region origin ASes announcing only one prefix: 3819
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273993216
Equivalent to 16 /8s, 84 /16s and 206 /24s
Percentage of available ARIN address space announced: 68.0
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: 33798
Total RIPE prefixes after maximum aggregation: 22872
Prefixes being announced from the RIPE address blocks: 30802
Unique aggregates announced from the RIPE address blocks: 20618
RIPE Region origin ASes present in the Internet Routing Table: 7258
RIPE Region origin ASes announcing only one prefix: 3814
RIPE Region transit ASes present in the Internet Routing Table: 1202
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 222429440
Equivalent to 13 /8s, 66 /16s and 1 /24s
Percentage of available RIPE address space announced: 66.3
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
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: 9778
Total LACNIC prefixes after maximum aggregation: 3280
Prefixes being announced from the LACNIC address blocks: 8083
Unique aggregates announced from the LACNIC address blocks: 4695
LACNIC Region origin ASes present in the Internet Routing Table: 645
LACNIC Region origin ASes announcing only one prefix: 207
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22447616
Equivalent to 1 /8s, 86 /16s and 134 /24s
Percentage of available LACNIC address space announced: 33.4
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: 1808
Total AfriNIC prefixes after maximum aggregation: 827
Prefixes being announced from the AfriNIC address blocks: 1128
Unique aggregates announced from the AfriNIC address blocks: 828
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2849024
Equivalent to 0 /8s, 43 /16s and 121 /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 1002 6327 214 CHINANET-BACKBONE
9583 818 77 12 Sify Limited
1221 749 1343 516 Telstra Pty Ltd
4755 744 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 623 3927 291 Korea Telecom (KIX)
7545 511 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 388 211 58 BHARTI BT INTERNET LTD.
17488 366 22 10 Hathway IP Over Cable Interne
2907 339 1763 316 SINET Japan
4802 335 73 153 Wantree Development
17557 334 25 163 Pakistan Telecom
7474 332 258 228 SingTel Optus Pty Ltd
9929 326 216 46 China Netcom Corp.
18302 295 109 168 SK Global co., Ltd
9837 274 79 175 Powertel Ltd
18101 267 68 19 Reliance Infocom Ltd Internet
703 253 258 209 UUNET - Commercial IP service
9800 248 390 78 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1487 6326 978 AT&T WorldNet Services
4323 1194 706 233 Time Warner Telecom
721 1069 21938 308 DLA Systems Automation Center
174 1043 5846 983 Cogent Communications
701 1003 8152 843 UUNET Technologies, Inc.
6197 960 407 495 BellSouth Network Solutions,
2386 927 545 691 AT&T Data Communications Serv
18566 869 240 7 Covad Communications
1239 847 2849 596 Sprint
209 650 3604 515 Qwest
20115 640 519 336 Charter Communications
11492 593 81 9 Cable One
852 573 1093 381 Telus Advanced Communications
3602 569 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 562 247 65 Canadian Research Network
22773 547 1356 28 Cox Communications, Inc.
19262 527 1535 132 Verizon Global Networks
3356 526 10638 402 Level 3 Communications, LLC
6198 490 577 212 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 1960 478 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 238 274 223 Romania Data Systems S.A.
3246 228 475 221 Song Networks
6746 197 51 169 Dynamic Network Technologies,
1257 190 712 168 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 180 1765 68 TELECOM ITALIA
786 175 1795 175 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 158 170 90 AUCS Communications Services
8866 156 37 9 Bulgarian Telecommunication C
25186 148 211 104 France Telecom Transpac's Tra
3215 144 1237 78 France Telecom Transpac
24863 143 37 6 LINKdotNET AS number
12479 140 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 386 642 165 UniNet S.A. de C.V.
16814 296 18 7 NSS, S.A.
11172 279 88 68 Servicios Alestra S.A de C.V
11664 200 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 170 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 143 68 20 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
13999 126 52 9 Mega Cable S.A. de C.V.
19169 124 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
21826 111 14 19 INTERCABLE
6503 108 147 75 AVANTEL, S.A.
11311 99 8 10 Sinectis S.A.
23216 92 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 708 228 The Internet Solution
8452 136 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 93 295 85 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 6 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
16637 24 10 21 Johnnic e-Ventures
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1194 961 Time Warner Telecom
18566 869 862 Covad Communications
9583 818 806 Sify Limited
4134 1002 788 CHINANET-BACKBONE
721 1069 761 DLA Systems Automation Center
4755 744 677 Videsh Sanchar Nigam Ltd. Aut
11492 593 584 Cable One
22773 547 519 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
6197 960 465 BellSouth Network Solutions,
3602 569 460 Sprint Canada, Inc.
5668 472 446 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
19262 527 395 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
6467 398 350 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 623 332 Korea Telecom (KIX)
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.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
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 /12:79
/13:184 /14:339 /15:656 /16:8603 /17:2861 /18:4818
/19:10954 /20:12017 /21:10113 /22:13343 /23:14477 /24:94765
/25:329 /26:279 /27:191 /28:32 /29:12 /30:39
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 853 869 Covad Communications
6197 782 960 BellSouth Network Solutions,
7018 722 1487 AT&T WorldNet Services
9583 641 818 Sify Limited
2386 640 927 AT&T Data Communications Serv
11492 585 593 Cable One
4323 571 1194 Time Warner Telecom
19916 557 563 OLM LLC
855 434 562 Canadian Research Network
4766 429 623 Korea Telecom (KIX)
7011 393 453 Citizens Utilities
702 390 610 UUNET - Commercial IP service
5668 374 472 CenturyTel Internet Holdings,
1239 360 847 Sprint
6198 353 490 BellSouth Network Solutions,
6517 323 349 Yipes Communications, Inc.
15270 314 341 PaeTec.net -a division of Pae
13609 292 333 Choice One Communications Inc
701 282 1003 UUNET Technologies, Inc.
18302 280 295 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:30 12:1609 13:1 15:11 16:3
17:3 18:3 20:41 24:660 30:2 32:68
38:168 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:97 59:90 60:147 61:776
62:790 63:1902 64:2970 65:2127 66:2949 67:640
68:656 69:1319 70:220 71:33 72:443 80:657
81:595 82:489 83:310 84:328 85:381 86:158
87:86 125:29 128:159 129:168 130:96 131:307
132:36 133:1 134:147 135:40 136:168 137:69
138:170 139:70 140:432 141:142 142:401 143:143
144:221 145:34 146:299 147:131 148:269 149:199
150:108 151:68 152:111 153:93 154:5 155:144
156:79 157:114 158:148 159:178 160:87 161:76
162:236 163:147 164:190 165:184 166:155 167:255
168:455 169:144 170:308 171:12 190:1 192:5736
193:3347 194:2430 195:1587 196:704 198:3920 199:3254
200:4249 201:413 202:6196 203:6550 204:3817 205:2034
206:2448 207:2890 208:2029 209:3480 210:1738 211:840
212:1210 213:1335 214:309 215:41 216:3871 217:1157
218:215 219:131 220:510 221:299 222:128
End of report
