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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 10 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150430
Prefixes after maximum aggregation: 88702
Unique aggregates announced to Internet: 71747
Total ASes present in the Internet Routing Table: 18406
Origin-only ASes present in the Internet Routing Table: 15974
Origin ASes announcing only one prefix: 7490
Transit ASes present in the Internet Routing Table: 2432
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: 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: 1351056760
Equivalent to 80 /8s, 135 /16s and 125 /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: 69235
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29182
Total APNIC prefixes after maximum aggregation: 14357
Prefixes being announced from the APNIC address blocks: 27282
Unique aggregates announced from the APNIC address blocks: 14126
APNIC Region origin ASes present in the Internet Routing Table: 2163
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 166115968
Equivalent to 9 /8s, 230 /16s and 186 /24s
Percentage of available APNIC address space announced: 75.8
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: 85444
Total ARIN prefixes after maximum aggregation: 51850
Prefixes being announced from the ARIN address blocks: 65403
Unique aggregates announced from the ARIN address blocks: 23424
ARIN Region origin ASes present in the Internet Routing Table: 9689
ARIN Region origin ASes announcing only one prefix: 3492
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 234711824
Equivalent to 13 /8s, 253 /16s and 107 /24s
Percentage of available ARIN address space announced: 69.9
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: 27998
Total RIPE prefixes after maximum aggregation: 19447
Prefixes being announced from the RIPE address blocks: 24754
Unique aggregates announced from the RIPE address blocks: 16243
RIPE Region origin ASes present in the Internet Routing Table: 5988
RIPE Region origin ASes announcing only one prefix: 3213
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: 178476416
Equivalent to 10 /8s, 163 /16s and 85 /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: 6560
Total LACNIC prefixes after maximum aggregation: 2358
Prefixes being announced from the LACNIC address blocks: 6388
Unique aggregates announced from the LACNIC address blocks: 3941
LACNIC Region origin ASes present in the Internet Routing Table: 403
LACNIC Region origin ASes announcing only one prefix: 117
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: 19
Number of LACNIC addresses announced to Internet: 16427776
Equivalent to 0 /8s, 250 /16s and 171 /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: 1240
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 856
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.6
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 545 3408 268 Korea Internet Exchange for "
4755 375 133 59 Videsh Sanchar Nigam Ltd. Aut
17676 371 5548 53 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 337 161 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 265 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 233 72 124 COMindico Australia
9800 230 380 70 CHINA UNICOM
7563 228 48 165 Korea Internet Infrastructure
9498 219 81 52 BHARTI BT INTERNET LTD.
10036 216 20 197 C&M Communication Co. Ltd.
4814 206 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1428 6665 994 AT&T WorldNet Services
701 1237 8415 887 UUNET Technologies, Inc.
721 1020 21016 298 DLA Systems Automation Center
1239 921 2880 609 Sprint
2386 849 530 610 AT&T Data Communications Serv
6197 810 373 352 BellSouth Network Solutions,
4323 796 670 217 Time Warner Telecom
18566 752 208 6 Covad Communications
209 658 3430 502 Qwest
3356 623 10942 445 Level 3 Communications, LLC
20115 597 457 319 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 439 377 202 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
702 633 2026 525 UUNET - Commercial IP service
3320 299 2996 235 Deutsche Telekom AG
8220 281 463 267 COLT Internet - International
3301 277 1099 268 TeliaNet Sweden
21502 253 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3300 250 167 79 AUCS Communications Services
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 203 726 174 SWIPnet Swedish IP Network
8708 201 115 184 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
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 153 288 102 LANLINK autonomous system
3269 150 1259 68 TELECOM ITALIA
5400 148 207 119 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 161 12 39 Keytech SA
7303 141 64 24 Telecom Argentina Stet-France
6505 140 90 94 Global One Communicaoes Ltda
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 84 7 19 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 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 93 259 65 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 752 746 Covad Communications
721 1020 722 DLA Systems Automation Center
4134 858 695 Data Communications Bureau
4323 796 579 Time Warner Telecom
9583 550 508 Satyam Infoway Ltd.,
6197 810 458 BellSouth Network Solutions,
7843 497 403 Adelphia Corp.
27364 414 395 Armstrong Cable Services
5668 411 393 Century Telephone
22773 399 382 Cox Communications, Inc. Atla
6467 399 369 E.Spire Communications, Inc.
22909 409 351 Comcast Cable Corporation
701 1237 350 UUNET Technologies, Inc.
6478 426 328 AT&T Worldnet Services
17676 371 318 XTAGE CORPORATION
4755 375 316 Videsh Sanchar Nigam Ltd. Aut
1239 921 312 Sprint
9929 337 304 China Netcom Corp.
4355 392 293 EarthLink, Inc.
20115 597 278 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 /16:8114 /17:2263 /18:3935
/19:9794 /20:10392 /21:7962 /22:11025 /23:12681 /24:82246
/25:254 /26:243 /27:130 /28:70 /29:54 /30:119
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 737 752 Covad Communications
6197 656 810 BellSouth Network Solutions,
2386 614 849 AT&T Data Communications Serv
7018 576 1428 AT&T WorldNet Services
27364 398 414 Armstrong Cable Services
702 387 633 UUNET - Commercial IP service
9583 385 550 Satyam Infoway Ltd.,
1239 366 921 Sprint
4766 365 545 Korea Internet Exchange for "
5668 356 411 Century Telephone
701 344 1237 UUNET Technologies, Inc.
6198 320 439 BellSouth Network Solutions,
6467 299 399 E.Spire Communications, Inc.
6517 281 305 Yipes Communications, Inc.
20115 281 597 Charter Communications
9929 268 337 China Netcom Corp.
13609 267 310 Choice One Communications Inc
14824 259 269 NewSouth Communications Corp.
4323 255 796 Time Warner Telecom
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 24:744 32:67 33:2 38:82
40:55 44:3 47:2 52:3 55:1 56:3
57:21 60:3 61:615 62:502 63:1853 64:2449
65:2073 66:2458 67:447 68:538 69:766 70:36
72:2 80:528 81:540 82:311 83:195 84:47
128:129 129:165 130:84 131:181 132:26 134:186
135:26 136:187 137:85 138:184 139:33 140:194
141:108 142:126 143:115 144:157 145:42 146:297
147:96 148:329 149:112 150:94 151:62 152:133
153:68 154:2 155:131 156:59 157:68 158:133
159:164 160:61 161:73 162:381 163:80 164:216
165:158 166:118 167:221 168:343 169:122 170:309
171:9 192:5663 193:2923 194:2161 195:1523 196:586
198:3911 199:3306 200:3822 201:23 202:4948 203:5748
204:3550 205:2084 206:2334 207:2626 208:2118 209:3082
210:1520 211:650 212:1151 213:1222 214:223 215:31
216:3679 217:1056 218:176 219:80 220:282 221:65
222:22
End of report
