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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 16 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175014
Prefixes after maximum aggregation: 98728
Unique aggregates announced to Internet: 84570
Total ASes present in the Internet Routing Table: 20892
Origin-only ASes present in the Internet Routing Table: 18185
Origin ASes announcing only one prefix: 8615
Transit ASes present in the Internet Routing Table: 2707
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: 1459645600
Equivalent to 87 /8s, 0 /16s and 108 /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: 84043
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36581
Total APNIC prefixes after maximum aggregation: 15857
Prefixes being announced from the APNIC address blocks: 34347
Unique aggregates announced from the APNIC address blocks: 16790
APNIC Region origin ASes present in the Internet Routing Table: 2403
APNIC Region origin ASes announcing only one prefix: 704
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 205869504
Equivalent to 12 /8s, 69 /16s and 81 /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: 92735
Total ARIN prefixes after maximum aggregation: 55740
Prefixes being announced from the ARIN address blocks: 72219
Unique aggregates announced from the ARIN address blocks: 27359
ARIN Region origin ASes present in the Internet Routing Table: 10337
ARIN Region origin ASes announcing only one prefix: 3844
ARIN Region transit ASes present in the Internet Routing Table: 961
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 275407872
Equivalent to 16 /8s, 106 /16s and 100 /24s
Percentage of available ARIN address space announced: 68.4
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: 34042
Total RIPE prefixes after maximum aggregation: 23006
Prefixes being announced from the RIPE address blocks: 31019
Unique aggregates announced from the RIPE address blocks: 20791
RIPE Region origin ASes present in the Internet Routing Table: 7288
RIPE Region origin ASes announcing only one prefix: 3813
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: 222924544
Equivalent to 13 /8s, 73 /16s and 143 /24s
Percentage of available RIPE address space announced: 66.4
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: 9863
Total LACNIC prefixes after maximum aggregation: 3278
Prefixes being announced from the LACNIC address blocks: 8166
Unique aggregates announced from the LACNIC address blocks: 4751
LACNIC Region origin ASes present in the Internet Routing Table: 648
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: 22730240
Equivalent to 1 /8s, 90 /16s and 214 /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: 1786
Total AfriNIC prefixes after maximum aggregation: 847
Prefixes being announced from the AfriNIC address blocks: 1143
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: 19
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2864896
Equivalent to 0 /8s, 43 /16s and 183 /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 1026 6331 215 CHINANET-BACKBONE
9583 823 77 12 Sify Limited
4755 749 259 68 Videsh Sanchar Nigam Ltd. Aut
1221 737 1342 513 Telstra Pty Ltd
4766 634 3927 285 Korea Telecom (KIX)
7545 514 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 395 215 63 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 332 24 161 Pakistan Telecom
9929 326 216 46 China Netcom Corp.
18302 307 141 164 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
18101 269 68 19 Reliance Infocom Ltd Internet
703 256 259 209 UUNET - Commercial IP service
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6324 972 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
721 1073 21938 308 DLA Systems Automation Center
174 1058 5847 991 Cogent Communications
701 980 8134 824 UUNET Technologies, Inc.
6197 942 407 492 BellSouth Network Solutions,
2386 928 545 694 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 849 2801 598 Sprint
209 659 3621 523 Qwest
20115 642 522 338 Charter Communications
11492 603 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
22773 556 1472 28 Cox Communications, Inc.
855 555 247 65 Canadian Research Network
19262 551 1560 133 Verizon Global Networks
3602 541 126 103 Sprint Canada, Inc.
3356 518 10633 402 Level 3 Communications, LLC
6478 496 1442 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1959 478 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 234 275 220 Romania Data Systems S.A.
3246 229 477 222 Song Networks
6746 201 51 172 Dynamic Network Technologies,
1257 194 712 171 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 180 1765 68 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 161 316 134 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 92 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
12479 151 322 5 Uni2 Autonomous System
24863 149 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 146 1261 80 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 389 692 167 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 283 88 68 Servicios Alestra S.A de C.V
11664 215 22 28 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 146 69 15 Telecom Argentina Stet-France
13999 131 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 128 8 20 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
6503 110 148 77 AVANTEL, S.A.
14522 103 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 269 708 228 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 59 16 2 Noor Advanced Technologies AS
24835 57 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 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
4134 1026 811 CHINANET-BACKBONE
9583 823 811 Sify Limited
721 1073 765 DLA Systems Automation Center
4755 749 681 Videsh Sanchar Nigam Ltd. Aut
11492 603 593 Cable One
22773 556 528 Cox Communications, Inc.
19916 563 509 OLM LLC
855 555 490 Canadian Research Network
6197 942 450 BellSouth Network Solutions,
5668 473 447 CenturyTel Internet Holdings,
7545 514 444 TPG Internet Pty Ltd
3602 541 438 Sprint Canada, Inc.
19262 551 418 Verizon Global Networks
17676 470 370 Softbank BB Corp.
6467 405 358 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
4766 634 349 Korea Telecom (KIX)
812 368 343 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 /14:340 /15:663 /16:8600 /17:2874 /18:4850
/19:11012 /20:12113 /21:10153 /22:13428 /23:14614 /24:95118
/25:340 /26:287 /27:192 /28:33 /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 772 942 BellSouth Network Solutions,
7018 721 1470 AT&T WorldNet Services
9583 645 823 Sify Limited
2386 644 928 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)
855 427 555 Canadian Research Network
7011 397 459 Citizens Utilities
702 390 609 UUNET - Commercial IP service
5668 375 473 CenturyTel Internet Holdings,
1239 368 849 Sprint
6198 353 483 BellSouth Network Solutions,
6517 324 350 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
22773 283 556 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:32 12:1617 13:1 15:11 16:3
17:3 18:3 20:41 24:660 32:64 38:177
40:54 44:3 47:3 52:4 55:1 56:3
57:35 58:110 59:90 60:148 61:761 62:781
63:1891 64:2962 65:2133 66:2918 67:637 68:670
69:1323 70:224 71:34 72:449 80:670 81:595
82:491 83:314 84:303 85:366 86:186 87:92
125:50 128:156 129:169 130:95 131:307 132:35
133:1 134:149 135:45 136:168 137:69 138:173
139:71 140:439 141:146 142:399 143:145 144:220
145:34 146:302 147:131 148:267 149:194 150:108
151:74 152:111 153:94 154:5 155:152 156:83
157:116 158:149 159:178 160:85 161:77 162:241
163:148 164:190 165:185 166:146 167:246 168:454
169:143 170:313 171:12 192:5745 193:3356 194:2440
195:1626 196:705 198:3918 199:3256 200:4274 201:443
202:6246 203:6586 204:3829 205:2042 206:2440 207:2902
208:2014 209:3482 210:1776 211:845 212:1203 213:1367
214:315 215:41 216:3856 217:1159 218:215 219:128
220:532 221:309 222:127
End of report
