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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 11 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150468
Prefixes after maximum aggregation: 88664
Unique aggregates announced to Internet: 71772
Total ASes present in the Internet Routing Table: 18404
Origin-only ASes present in the Internet Routing Table: 15971
Origin ASes announcing only one prefix: 7494
Transit ASes present in the Internet Routing Table: 2433
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1351404920
Equivalent to 80 /8s, 140 /16s and 205 /24s
Percentage of available address space announced: 36.5
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69309
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29191
Total APNIC prefixes after maximum aggregation: 14353
Prefixes being announced from the APNIC address blocks: 27295
Unique aggregates announced from the APNIC address blocks: 14116
APNIC Region origin ASes present in the Internet Routing Table: 2163
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: 16
Number of APNIC addresses announced to Internet: 166268288
Equivalent to 9 /8s, 233 /16s and 13 /24s
Percentage of available APNIC address space announced: 75.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 85451
Total ARIN prefixes after maximum aggregation: 51801
Prefixes being announced from the ARIN address blocks: 65385
Unique aggregates announced from the ARIN address blocks: 23427
ARIN Region origin ASes present in the Internet Routing Table: 9687
ARIN Region origin ASes announcing only one prefix: 3487
ARIN Region transit ASes present in the Internet Routing Table: 947
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 234844432
Equivalent to 13 /8s, 255 /16s and 113 /24s
Percentage of available ARIN address space announced: 70.0
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,
26624-27647,29695-30719, 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: 28021
Total RIPE prefixes after maximum aggregation: 19463
Prefixes being announced from the RIPE address blocks: 24732
Unique aggregates announced from the RIPE address blocks: 16270
RIPE Region origin ASes present in the Internet Routing Table: 5989
RIPE Region origin ASes announcing only one prefix: 3219
RIPE Region transit ASes present in the Internet Routing Table: 1031
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 178504576
Equivalent to 10 /8s, 163 /16s and 195 /24s
Percentage of available RIPE address space announced: 62.6
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: 6555
Total LACNIC prefixes after maximum aggregation: 2354
Prefixes being announced from the LACNIC address blocks: 6389
Unique aggregates announced from the LACNIC address blocks: 3937
LACNIC Region origin ASes present in the Internet Routing Table: 403
LACNIC Region origin ASes announcing only one prefix: 118
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 16443136
Equivalent to 0 /8s, 250 /16s and 231 /24s
Percentage of available LACNIC address space announced: 49.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1244
Total AfriNIC prefixes after maximum aggregation: 693
Prefixes being announced from the AfriNIC address blocks: 857
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069248
Equivalent to 0 /8s, 31 /16s and 147 /24s
Percentage of available AfriNIC address space announced: 12.3
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 858 4407 163 Data Communications Bureau
1221 800 1183 574 Telstra Pty Ltd
9583 550 43 42 Satyam Infoway Ltd.,
4766 546 3408 268 Korea Internet Exchange for "
4755 372 133 58 Videsh Sanchar Nigam Ltd. Aut
17676 372 5564 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
703 318 346 245 UUNET
17557 315 23 156 Pakistan Telecom
2764 288 273 235 connect.com.au pty ltd
7474 266 268 198 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9800 230 380 70 CHINA UNICOM
7563 226 48 163 Korea Internet Infrastructure
9498 220 81 52 BHARTI BT INTERNET LTD.
9942 219 71 112 COMindico Australia
10036 216 20 197 C&M Communication Co. Ltd.
4814 208 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6665 993 AT&T WorldNet Services
701 1242 8418 889 UUNET Technologies, Inc.
721 1020 21016 298 DLA Systems Automation Center
1239 921 2880 609 Sprint
2386 849 530 609 AT&T Data Communications Serv
6197 818 514 310 BellSouth Network Solutions,
4323 796 670 217 Time Warner Telecom
18566 751 208 6 Covad Communications
209 658 3431 505 Qwest
3356 622 10942 444 Level 3 Communications, LLC
20115 598 458 320 Charter Communications
3561 558 2414 422 Cable & Wireless USA
852 520 1142 399 Telus Advanced Communications
7843 497 711 94 Adelphia Corp.
7132 445 8288 377 SBC Internet Services
6198 436 349 210 BellSouth Network Solutions,
6478 426 738 98 AT&T Worldnet Services
27364 414 36 19 Armstrong Cable Services
5668 411 87 18 Century Telephone
22909 409 843 58 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2026 526 UUNET - Commercial IP service
3320 299 2996 235 Deutsche Telekom AG
8220 281 463 267 COLT Internet - International
3301 276 1099 267 TeliaNet Sweden
3300 256 167 81 AUCS Communications Services
21502 253 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 203 726 174 SWIPnet Swedish IP Network
8708 202 115 184 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 160 20 7 Bulgarian Telecommunication C
3215 159 940 77 France Telecom Transpac
6746 158 30 128 Dynamic Network Technologies,
719 156 322 105 LANLINK autonomous system
3269 150 1259 68 TELECOM ITALIA
5400 149 207 119 BT Ignite European Backbone
25186 148 154 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 139 69 ImpSat
8151 309 471 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 211 100 55 Servicios Alestra S.A de C.V
6147 189 94 20 Telefonica Del Peru
11664 157 12 34 Keytech SA
6505 140 90 94 Global One Communicaoes Ltda
7303 140 64 24 Telecom Argentina Stet-France
6503 122 148 82 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
6535 85 7 18 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 78 18 9 Red de Interconexion Universi
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
11340 72 21 48 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 649 230 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
2905 94 259 66 The Internetworking Company o
20928 52 16 1 Noor Advanced Technologies AS
24835 40 34 7 RAYA Telecom - Egypt
9129 34 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
8452 18 20 5 TEDATA
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21280 16 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 751 745 Covad Communications
721 1020 722 DLA Systems Automation Center
4134 858 695 Data Communications Bureau
4323 796 579 Time Warner Telecom
6197 818 508 BellSouth Network Solutions,
9583 550 508 Satyam Infoway Ltd.,
7843 497 403 Adelphia Corp.
27364 414 395 Armstrong Cable Services
5668 411 393 Century Telephone
22773 400 383 Cox Communications, Inc. Atla
6467 399 369 E.Spire Communications, Inc.
701 1242 353 UUNET Technologies, Inc.
22909 409 351 Comcast Cable Corporation
6478 426 328 AT&T Worldnet Services
17676 372 318 XTAGE CORPORATION
4755 372 314 Videsh Sanchar Nigam Ltd. Aut
1239 921 312 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
20115 598 278 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 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 /8:19 /9:3 /10:7 /11:15 /12:61
/13:138 /14:314 /15:555 /16:8119 /17:2264 /18:3939
/19:9802 /20:10402 /21:7980 /22:11016 /23:12692 /24:82236
/25:254 /26:240 /27:130 /28:71 /29:54 /30:118
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 736 751 Covad Communications
6197 656 818 BellSouth Network Solutions,
2386 613 849 AT&T Data Communications Serv
7018 575 1427 AT&T WorldNet Services
27364 398 414 Armstrong Cable Services
702 388 634 UUNET - Commercial IP service
9583 385 550 Satyam Infoway Ltd.,
1239 366 921 Sprint
4766 366 546 Korea Internet Exchange for "
5668 356 411 Century Telephone
701 348 1242 UUNET Technologies, Inc.
6198 319 436 BellSouth Network Solutions,
6467 299 399 E.Spire Communications, Inc.
20115 282 598 Charter Communications
6517 281 305 Yipes Communications, Inc.
9929 275 344 China Netcom Corp.
13609 267 310 Choice One Communications Inc
4323 255 796 Time Warner Telecom
11456 254 298 Carolina Online, Inc.
21502 250 253 NUMERICABLE is a cabled netwo
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1437 13:1 15:5 16:2
17:3 20:5 24:743 32:69 33:2 38:82
40:55 44:3 47:2 52:3 55:1 56:3
57:21 60:3 61:617 62:492 63:1855 64:2448
65:2073 66:2465 67:450 68:536 69:766 70:37
72:2 80:528 81:536 82:312 83:207 84:47
128:129 129:165 130:84 131:182 132:26 134:186
135:26 136:187 137:85 138:184 139:36 140:197
141:108 142:126 143:115 144:157 145:42 146:297
147:96 148:329 149:112 150:94 151:62 152:133
153:116 154:2 155:131 156:59 157:68 158:133
159:164 160:61 161:73 162:380 163:80 164:216
165:162 166:118 167:221 168:343 169:123 170:310
171:9 192:5656 193:2925 194:2161 195:1522 196:586
198:3882 199:3305 200:3820 201:23 202:4943 203:5748
204:3557 205:2082 206:2322 207:2620 208:2119 209:3085
210:1519 211:652 212:1147 213:1210 214:224 215:31
216:3672 217:1044 218:176 219:81 220:284 221:65
222:22
End of report
