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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 03 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 161124
Prefixes after maximum aggregation: 93768
Unique aggregates announced to Internet: 77669
Total ASes present in the Internet Routing Table: 19537
Origin-only ASes present in the Internet Routing Table: 17004
Origin ASes announcing only one prefix: 7969
Transit ASes present in the Internet Routing Table: 2533
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 29
Prefixes from unregistered ASNs in the Routing Table: 13
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1403063104
Equivalent to 83 /8s, 161 /16s and 11 /24s
Percentage of available address space announced: 37.9
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 75437
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32954
Total APNIC prefixes after maximum aggregation: 15493
Prefixes being announced from the APNIC address blocks: 30891
Unique aggregates announced from the APNIC address blocks: 15609
APNIC Region origin ASes present in the Internet Routing Table: 2254
APNIC Region origin ASes announcing only one prefix: 659
APNIC Region transit ASes present in the Internet Routing Table: 341
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 182408832
Equivalent to 10 /8s, 223 /16s and 86 /24s
Percentage of available APNIC address space announced: 67.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
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: 87398
Total ARIN prefixes after maximum aggregation: 53350
Prefixes being announced from the ARIN address blocks: 68212
Unique aggregates announced from the ARIN address blocks: 25042
ARIN Region origin ASes present in the Internet Routing Table: 9885
ARIN Region origin ASes announcing only one prefix: 3600
ARIN Region transit ASes present in the Internet Routing Table: 931
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 247488768
Equivalent to 14 /8s, 192 /16s and 97 /24s
Percentage of available ARIN address space announced: 70.2
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, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 30625
Total RIPE prefixes after maximum aggregation: 21137
Prefixes being announced from the RIPE address blocks: 27703
Unique aggregates announced from the RIPE address blocks: 18453
RIPE Region origin ASes present in the Internet Routing Table: 6598
RIPE Region origin ASes announcing only one prefix: 3483
RIPE Region transit ASes present in the Internet Routing Table: 1107
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 202207936
Equivalent to 12 /8s, 13 /16s and 114 /24s
Percentage of available RIPE address space announced: 70.9
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
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8580
Total LACNIC prefixes after maximum aggregation: 3030
Prefixes being announced from the LACNIC address blocks: 7008
Unique aggregates announced from the LACNIC address blocks: 4072
LACNIC Region origin ASes present in the Internet Routing Table: 612
LACNIC Region origin ASes announcing only one prefix: 193
LACNIC Region transit ASes present in the Internet Routing Table: 110
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 18521600
Equivalent to 1 /8s, 26 /16s and 158 /24s
Percentage of available LACNIC address space announced: 55.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1549
Total AfriNIC prefixes after maximum aggregation: 758
Prefixes being announced from the AfriNIC address blocks: 940
Unique aggregates announced from the AfriNIC address blocks: 746
AfriNIC Region origin ASes present in the Internet Routing Table: 122
AfriNIC Region origin ASes announcing only one prefix: 34
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2223872
Equivalent to 0 /8s, 33 /16s and 239 /24s
Percentage of available AfriNIC address space announced: 6.6
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 898 5035 183 CHINANET-BACKBONE
1221 772 1192 549 Telstra Pty Ltd
9583 726 53 70 Sify Limited
4755 588 244 126 Videsh Sanchar Nigam Ltd. Aut
4766 586 3413 277 Korea Telecom (KIX)
7545 492 86 71 TPG Internet Pty Ltd
17676 431 6509 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 361 197 46 China Netcom Corp.
2907 345 1838 319 SINET Japan
17557 329 27 148 Pakistan Telecom
10036 313 28 284 C&M Communication Co. Ltd.
4808 309 251 169 CNCGROUP IP network: China169
7474 299 268 208 SingTel Optus Pty Ltd
9498 294 83 59 BHARTI BT INTERNET LTD.
4802 279 47 164 Wantree Development
2764 258 238 197 AAPT Limited
703 257 279 212 UUNET - Commercial IP service
17974 245 65 14 PT TELEKOMUNIKASI INDONESIA
9800 242 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1487 6499 954 AT&T WorldNet Services
174 1176 5611 1007 Cogent Communications
721 1117 21763 313 DLA Systems Automation Center
4323 1110 665 225 Time Warner Telecom
701 1004 8250 854 UUNET Technologies, Inc.
1239 910 2874 659 Sprint
6197 899 368 452 BellSouth Network Solutions,
2386 847 532 628 AT&T Data Communications Serv
18566 801 224 7 Covad Communications
209 652 3456 493 Qwest
20115 609 505 307 Charter Communications
3356 587 10836 441 Level 3 Communications, LLC
3561 542 2357 415 Savvis
27364 539 43 18 Armstrong Cable Services
852 531 1095 392 Telus Advanced Communications
3602 506 122 94 Sprint Canada, Inc.
5668 487 115 25 CenturyTel Internet Holdings,
22773 482 1188 21 Cox Communications, Inc.
6198 470 542 202 BellSouth Network Solutions,
7132 443 8782 380 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 2003 486 UUNET - Commercial IP service
3320 302 2993 236 Deutsche Telekom AG
3301 297 1116 287 TeliaNet Sweden
8220 274 469 268 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 233 491 228 Song Networks
8708 228 251 209 Romania Data Systems S.A.
1257 199 727 175 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 167 1472 73 TELECOM ITALIA
6746 164 47 143 Dynamic Network Technologies,
8866 162 21 12 Bulgarian Telecommunication C
719 159 340 101 LANLINK autonomous system
3300 151 184 84 AUCS Communications Services
5400 144 284 128 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
2856 129 2305 116 BTnet UK Regional network
9051 128 8 34 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 373 598 147 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 224 99 54 Servicios Alestra S.A de C.V
6147 197 102 20 Telefonica Del Peru
11664 155 19 22 Keytech SA
7303 148 68 21 Telecom Argentina Stet-France
14117 135 8 4 Telefonica del Sur S.A.
6505 130 90 87 Global One Communicaoes Ltda
22047 124 96 6 VTR PUNTO NET S.A.
11556 110 55 6 Cable-Wireless Panama
13999 110 52 9 Mega Cable S.A. de C.V.
18822 105 7 15 TELEFONICA MANQUEHUE
6503 104 146 74 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
19169 97 6 15 Telconet
23216 90 24 23 RAMtelecom Telecomunicaciones
21826 89 12 18 INTERCABLE
5639 86 12 9 Telecommunications Services o
11311 85 8 21 Sinectis S.A.
22927 82 73 22 TELEFONICA DE ARGENTINA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 637 225 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 90 16 2 Noor Advanced Technologies AS
2905 75 267 69 The Internetworking Company o
8452 64 20 5 TEDATA
24835 60 34 6 RAYA Telecom - Egypt
9129 44 3 3 UUNET Kenya
12455 41 6 3 Jambonet Autonomous system
5713 35 141 28 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
8524 25 1 4 AUCEGYPT Autonomous System
15475 24 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
33765 19 3 8 TANZANIA TELECOMMUNICATIONS C
7460 18 3 5 LIA Internet Access
2609 17 26 3 Tunisia BackBone AS
12258 17 3 11 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65530 *
4323 1110 885 Time Warner Telecom
721 1117 804 DLA Systems Automation Center
18566 801 794 Covad Communications
4134 898 715 CHINANET-BACKBONE
9583 726 656 Sify Limited
27364 539 521 Armstrong Cable Services
4755 588 462 Videsh Sanchar Nigam Ltd. Aut
5668 487 462 CenturyTel Internet Holdings,
22773 482 461 Cox Communications, Inc.
6197 899 447 BellSouth Network Solutions,
7545 492 421 TPG Internet Pty Ltd
3602 506 412 Sprint Canada, Inc.
6467 432 397 E.Spire Communications, Inc.
17676 431 358 Softbank BB Corp.
6140 399 327 ImpSat
9929 361 315 China Netcom Corp.
4766 586 309 Korea Telecom (KIX)
20115 609 302 Charter Communications
9443 370 294 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
172.32.0.0/24 7011 Citizens Utilities
172.122.28.0/24 210 Utah Education Network
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:8 /11:15 /12:68
/13:154 /14:307 /15:582 /16:8376 /17:2535 /18:4366
/19:10256 /20:11077 /21:8945 /22:12329 /23:13287 /24:87900
/25:280 /26:263 /27:140 /28:76 /29:39 /30:70
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 785 801 Covad Communications
6197 739 899 BellSouth Network Solutions,
7018 674 1487 AT&T WorldNet Services
2386 601 847 AT&T Data Communications Serv
9583 542 726 Sify Limited
27364 528 539 Armstrong Cable Services
4323 520 1110 Time Warner Telecom
5668 404 487 CenturyTel Internet Holdings,
4766 403 586 Korea Telecom (KIX)
1239 382 910 Sprint
702 366 594 UUNET - Commercial IP service
6198 340 470 BellSouth Network Solutions,
10036 313 313 C&M Communication Co. Ltd.
6467 312 432 E.Spire Communications, Inc.
7011 297 347 Citizens Utilities
6517 295 318 Yipes Communications, Inc.
9929 282 361 China Netcom Corp.
11456 276 318 Carolina Online, Inc.
15270 258 278 PaeTec.net -a division of Pae
174 248 1176 Cogent Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:12 12:1529 13:1 15:9 16:2
17:3 18:4 20:4 24:978 30:2 32:69
33:4 38:109 40:53 44:3 47:2 52:4
55:2 56:3 57:23 58:42 59:28 60:22
61:787 62:598 63:1874 64:2681 65:2066 66:2798
67:563 68:520 69:996 70:96 71:6 72:170
80:557 81:546 82:394 83:251 84:171 85:183
86:14 128:142 129:158 130:84 131:279 132:35
133:1 134:148 135:40 136:187 137:65 138:172
139:55 140:191 141:106 142:141 143:133 144:167
145:33 146:279 147:105 148:293 149:169 150:97
151:65 152:107 153:87 154:5 155:143 156:77
157:92 158:165 159:174 160:77 161:61 162:202
163:83 164:207 165:178 166:155 167:231 168:419
169:138 170:307 171:8 172:2 192:5704 193:3176
194:2343 195:1546 196:649 198:3942 199:3286 200:3899
201:120 202:5557 203:6125 204:3817 205:2018 206:2469
207:2756 208:2055 209:3250 210:1698 211:840 212:1194
213:1281 214:276 215:31 216:3516 217:1138 218:192
219:105 220:376 221:204 222:91
End of report
