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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 07 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156996
Prefixes after maximum aggregation: 91801
Unique aggregates announced to Internet: 75352
Total ASes present in the Internet Routing Table: 19080
Origin-only ASes present in the Internet Routing Table: 16603
Origin ASes announcing only one prefix: 7748
Transit ASes present in the Internet Routing Table: 2477
Transit-only ASes present in the Internet Routing Table: 80
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: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1382016544
Equivalent to 82 /8s, 95 /16s and 230 /24s
Percentage of available address space announced: 37.3
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73115
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31348
Total APNIC prefixes after maximum aggregation: 15183
Prefixes being announced from the APNIC address blocks: 29383
Unique aggregates announced from the APNIC address blocks: 15381
APNIC Region origin ASes present in the Internet Routing Table: 2215
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 176468160
Equivalent to 10 /8s, 132 /16s and 176 /24s
Percentage of available APNIC address space announced: 65.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
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: 87555
Total ARIN prefixes after maximum aggregation: 53007
Prefixes being announced from the ARIN address blocks: 66832
Unique aggregates announced from the ARIN address blocks: 24474
ARIN Region origin ASes present in the Internet Routing Table: 9910
ARIN Region origin ASes announcing only one prefix: 3583
ARIN Region transit ASes present in the Internet Routing Table: 943
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 240248576
Equivalent to 14 /8s, 81 /16s and 231 /24s
Percentage of available ARIN address space announced: 71.6
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 29834
Total RIPE prefixes after maximum aggregation: 20518
Prefixes being announced from the RIPE address blocks: 26759
Unique aggregates announced from the RIPE address blocks: 17086
RIPE Region origin ASes present in the Internet Routing Table: 6361
RIPE Region origin ASes announcing only one prefix: 3366
RIPE Region transit ASes present in the Internet Routing Table: 1069
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 194161744
Equivalent to 11 /8s, 146 /16s and 172 /24s
Percentage of available RIPE address space announced: 68.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
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: 6884
Total LACNIC prefixes after maximum aggregation: 2389
Prefixes being announced from the LACNIC address blocks: 6833
Unique aggregates announced from the LACNIC address blocks: 4029
LACNIC Region origin ASes present in the Internet Routing Table: 424
LACNIC Region origin ASes announcing only one prefix: 127
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17679104
Equivalent to 1 /8s, 13 /16s and 195 /24s
Percentage of available LACNIC address space announced: 52.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1360
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 896
Unique aggregates announced from the AfriNIC address blocks: 715
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177024
Equivalent to 0 /8s, 33 /16s and 56 /24s
Percentage of available AfriNIC address space announced: 13.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 887 4720 175 Data Communications Bureau
1221 786 1188 558 Telstra Pty Ltd
9583 608 49 20 Satyam Infoway Ltd.,
4766 589 3416 279 Korea Internet Exchange for "
4755 488 241 104 Videsh Sanchar Nigam Ltd. Aut
7545 464 75 158 TPG Internet Pty Ltd
17676 405 6108 70 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 361 167 39 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 330 25 152 Pakistan Telecom
10036 299 27 272 C&M Communication Co. Ltd.
7474 288 283 210 Optus Communications Pty Ltd
4802 275 47 159 Wantree Development
703 272 355 214 UUNET
2764 254 237 203 connect.com.au pty ltd
9498 245 81 54 BHARTI BT INTERNET LTD.
4808 242 234 130 CHINANET core WAN North
9800 240 395 71 CHINA UNICOM
17974 231 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6576 966 AT&T WorldNet Services
721 1124 21763 314 DLA Systems Automation Center
4323 1051 668 219 Time Warner Telecom
701 1030 8290 875 UUNET Technologies, Inc.
1239 926 2872 659 Sprint
6197 871 380 410 BellSouth Network Solutions,
2386 822 498 609 AT&T Data Communications Serv
18566 773 208 6 Covad Communications
174 768 5529 671 PSINet Inc.
209 638 3466 501 Qwest
20115 579 478 300 Charter Communications
3356 577 10848 427 Level 3 Communications, LLC
3561 560 2373 415 Cable & Wireless USA
852 531 1095 400 Telus Advanced Communications
3602 499 120 93 Sprint Canada, Inc.
6478 499 831 101 AT&T Worldnet Services
22773 478 1090 24 Cox Communications, Inc. Atla
6198 467 540 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 457 93 22 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 606 2006 497 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 275 466 269 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 228 472 223 Song Networks
8708 223 121 200 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
1257 208 708 173 SWIPnet Swedish IP Network
3215 206 1058 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
3300 164 185 84 AUCS Communications Services
9121 163 230 31 TTnet Autonomous System
6746 162 47 143 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
6830 142 529 28 UPC Distribution Services
25186 140 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 382 140 70 ImpSat
8151 337 505 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 221 99 54 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 150 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 114 145 75 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 93 52 9 Mega Cable S.A. de C.V.
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
5639 83 12 9 Telecommunications Services o
10481 79 32 7 Prima S.A.
10292 78 6 20 TELECOMMUNICATIONS OF JAMAICA
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 87 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 55 20 5 TEDATA
24835 53 34 6 RAYA Telecom - Egypt
9129 37 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
12455 30 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 18 2 3 Swift Global Kenya Ltd.Is an
8346 17 10 11 SONATEL-AS Autonomous System
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
15808 14 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1051 832 Time Warner Telecom
721 1124 810 DLA Systems Automation Center
18566 773 767 Covad Communications
4134 887 712 Data Communications Bureau
9583 608 588 Satyam Infoway Ltd.,
6197 871 461 BellSouth Network Solutions,
22773 478 454 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 457 435 Century Telephone
3602 499 406 Sprint Canada, Inc.
6478 499 398 AT&T Worldnet Services
4755 488 384 Videsh Sanchar Nigam Ltd. Aut
17676 405 335 XTAGE CORPORATION
6467 359 326 E.Spire Communications, Inc.
9929 361 322 China Netcom Corp.
6140 382 312 ImpSat
4766 589 310 Korea Internet Exchange for "
7545 464 306 TPG Internet Pty Ltd
9443 374 295 Primus Telecommunications
20115 579 279 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
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
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
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
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 /8:20 /9:3 /10:8 /11:14 /12:62
/13:148 /14:306 /15:569 /16:8304 /17:2430 /18:4157
/19:10088 /20:10758 /21:8627 /22:11914 /23:13072 /24:85699
/25:266 /26:247 /27:105 /28:51 /29:25 /30:84
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 758 773 Covad Communications
6197 714 871 BellSouth Network Solutions,
7018 636 1469 AT&T WorldNet Services
2386 584 822 AT&T Data Communications Serv
4323 483 1051 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 432 608 Satyam Infoway Ltd.,
4766 405 589 Korea Internet Exchange for "
5668 383 457 Century Telephone
1239 373 926 Sprint
702 369 606 UUNET - Commercial IP service
6198 336 467 BellSouth Network Solutions,
10036 299 299 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
9929 286 361 China Netcom Corp.
6467 270 359 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 247 1030 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1486 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:64 33:4
38:98 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:1 59:5 60:21 61:713
62:517 63:1878 64:2573 65:2052 66:2719 67:523
68:504 69:902 70:68 71:3 72:90 80:545
81:527 82:334 83:264 84:132 85:147 128:139
129:162 130:94 131:280 132:34 133:1 134:142
135:30 136:189 137:66 138:156 139:53 140:197
141:102 142:139 143:126 144:173 145:45 146:269
147:100 148:279 149:163 150:96 151:63 152:110
153:85 154:3 155:142 156:68 157:83 158:155
159:168 160:72 161:60 162:427 163:85 164:207
165:164 166:129 167:227 168:400 169:133 170:311
171:9 192:5659 193:3118 194:2281 195:1584 196:626
198:3895 199:3312 200:3999 201:54 202:5192 203:6069
204:3714 205:2024 206:2342 207:2726 208:2080 209:3158
210:1603 211:800 212:1166 213:1258 214:243 215:31
216:3666 217:1091 218:189 219:112 220:369 221:93
222:72
End of report
