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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 08 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148766
Prefixes after maximum aggregation: 87886
Unique aggregates announced to Internet: 70389
Total ASes present in the Internet Routing Table: 18181
Origin-only ASes present in the Internet Routing Table: 15794
Origin ASes announcing only one prefix: 7387
Transit ASes present in the Internet Routing Table: 2387
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 58
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1344476724
Equivalent to 80 /8s, 35 /16s and 22 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68611
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28612
Total APNIC prefixes after maximum aggregation: 14296
Prefixes being announced from the APNIC address blocks: 26777
Unique aggregates announced from the APNIC address blocks: 14306
APNIC Region origin ASes present in the Internet Routing Table: 2144
APNIC Region origin ASes announcing only one prefix: 641
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164579456
Equivalent to 9 /8s, 207 /16s and 72 /24s
Percentage of available APNIC address space announced: 75.1
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: 84901
Total ARIN prefixes after maximum aggregation: 51369
Prefixes being announced from the ARIN address blocks: 64973
Unique aggregates announced from the ARIN address blocks: 22979
ARIN Region origin ASes present in the Internet Routing Table: 9597
ARIN Region origin ASes announcing only one prefix: 3446
ARIN Region transit ASes present in the Internet Routing Table: 925
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 233410816
Equivalent to 13 /8s, 233 /16s and 145 /24s
Percentage of available ARIN address space announced: 69.6
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,
26624-27647,29695-30719, 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: 27616
Total RIPE prefixes after maximum aggregation: 19179
Prefixes being announced from the RIPE address blocks: 24458
Unique aggregates announced from the RIPE address blocks: 15454
RIPE Region origin ASes present in the Internet Routing Table: 5878
RIPE Region origin ASes announcing only one prefix: 3166
RIPE Region transit ASes present in the Internet Routing Table: 1008
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 173939136
Equivalent to 10 /8s, 94 /16s and 25 /24s
Percentage of available RIPE address space announced: 61.0
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: 6364
Total LACNIC prefixes after maximum aggregation: 2352
Prefixes being announced from the LACNIC address blocks: 6185
Unique aggregates announced from the LACNIC address blocks: 3663
LACNIC Region origin ASes present in the Internet Routing Table: 394
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16255232
Equivalent to 0 /8s, 248 /16s and 9 /24s
Percentage of available LACNIC address space announced: 48.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1265
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 884
Unique aggregates announced from the AfriNIC address blocks: 677
AfriNIC Region origin ASes present in the Internet Routing Table: 93
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: 4.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2064640
Equivalent to 0 /8s, 31 /16s and 129 /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 839 4389 159 Data Communications Bureau
1221 809 1184 581 Telstra Pty Ltd
4766 544 3407 266 Korea Internet Exchange for "
9583 529 41 106 Satyam Infoway Ltd.,
17676 370 5532 52 XTAGE CORPORATION
4755 369 132 52 Videsh Sanchar Nigam Ltd. Aut
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
17557 315 23 157 Pakistan Telecom
703 313 342 242 UUNET
2764 285 274 232 connect.com.au pty ltd
7474 270 269 201 Optus Communications Pty Ltd
9942 238 73 127 COMindico Australia
4802 233 28 142 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 224 49 48 BHARTI BT INTERNET LTD.
7563 221 48 163 Korea Internet Infrastructure
10036 203 19 186 C&M Communication Co. Ltd.
4837 202 2264 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1413 6747 983 AT&T WorldNet Services
701 1271 8450 917 UUNET Technologies, Inc.
1239 942 2867 624 Sprint
3549 848 563 206 Global Crossing
2386 842 532 603 AT&T Data Communications Serv
6197 791 490 322 BellSouth Network Solutions,
4323 790 637 216 Time Warner Telecom
18566 743 208 6 Covad Communications
721 723 21028 298 DLA Systems Automation Center
3561 633 2513 431 Cable & Wireless USA
209 625 3464 494 Qwest
20115 589 427 302 Charter Communications
3356 588 10923 447 Level 3 Communications, LLC
852 512 1142 398 Telus Advanced Communications
7843 492 687 97 Adelphia Corp.
7132 445 8160 376 SBC Internet Services
6198 434 403 203 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
27364 411 36 19 Armstrong Cable Services
22773 402 960 18 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 630 2013 520 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
3301 281 1100 271 TeliaNet Sweden
8220 278 461 264 COLT Internet - International
21502 269 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 206 114 182 Romania Data Systems S.A.
1257 205 742 178 SWIPnet Swedish IP Network
5515 201 843 147 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
719 157 288 102 LANLINK autonomous system
3215 156 908 76 France Telecom Transpac
6746 152 30 129 Dynamic Network Technologies,
8866 151 18 19 Bulgarian Telecommunication C
5400 148 207 120 BT Ignite European Backbone
25186 148 154 106 France Telecom Transpac's Tra
3269 147 1227 67 TELECOM ITALIA
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 349 139 68 ImpSat
8151 304 439 129 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 205 100 54 Servicios Alestra S.A de C.V
6147 193 90 20 Telefonica Del Peru
11664 153 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 134 60 24 Telecom Argentina Stet-France
6503 124 164 85 AVANTEL, S.A.
11992 90 9 31 Integrated Systems
11311 88 8 26 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
14420 81 5 34 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
27716 74 9 12 Eveloz
10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 58 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
24835 34 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
9129 29 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
14988 24 16 1 Botswana Telecommunications C
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 743 737 Covad Communications
4134 839 680 Data Communications Bureau
3549 848 642 Global Crossing
4323 790 574 Time Warner Telecom
6197 791 469 BellSouth Network Solutions,
721 723 425 DLA Systems Automation Center
9583 529 423 Satyam Infoway Ltd.,
7843 492 395 Adelphia Corp.
27364 411 392 Armstrong Cable Services
22773 402 384 Cox Communications, Inc. Atla
5668 398 380 Century Telephone
6467 390 360 E.Spire Communications, Inc.
701 1271 354 UUNET Technologies, Inc.
22909 383 353 Comcast Cable Corporation
1239 942 318 Sprint
17676 370 318 XTAGE CORPORATION
4755 369 317 Videsh Sanchar Nigam Ltd. Aut
9929 344 311 China Netcom Corp.
6478 377 298 AT&T Worldnet Services
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 24.249.231.0/24 15218 COX Communications
64512 PRIVATE 24.249.232.0/24 15218 COX Communications
64512 PRIVATE 24.249.233.0/24 15218 COX Communications
64512 PRIVATE 24.249.234.0/24 15218 COX Communications
64512 PRIVATE 24.249.235.0/24 15218 COX Communications
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
22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking
22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.81.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.91.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.92.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking
22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
111.0.0.0/24 7563 Korea Internet Infrastructure
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 /8:20 /9:3 /10:6 /11:15 /12:62
/13:137 /14:314 /15:552 /16:8103 /17:2250 /18:3881
/19:9694 /20:10358 /21:7862 /22:10857 /23:12505 /24:81324
/25:230 /26:207 /27:113 /28:59 /29:48 /30:119
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 728 743 Covad Communications
6197 635 791 BellSouth Network Solutions,
2386 607 842 AT&T Data Communications Serv
7018 563 1413 AT&T WorldNet Services
3549 449 848 Global Crossing
27364 395 411 Armstrong Cable Services
702 382 630 UUNET - Commercial IP service
1239 378 942 Sprint
9583 368 529 Satyam Infoway Ltd.,
4766 364 544 Korea Internet Exchange for "
701 351 1271 UUNET Technologies, Inc.
5668 346 398 Century Telephone
6198 318 434 BellSouth Network Solutions,
20115 299 589 Charter Communications
6467 286 390 E.Spire Communications, Inc.
9929 275 344 China Netcom Corp.
6517 271 298 Yipes Communications, Inc.
13609 266 309 Choice One Communications Inc
21502 266 269 NUMERICABLE is a cabled netwo
3561 257 633 Cable & Wireless USA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:8 12:1404 13:1 15:1 16:2
17:3 18:1 20:6 24:736 32:68 33:2
38:80 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:520 62:511 63:1837
64:2541 65:2060 66:2499 67:415 68:548 69:724
70:81 80:522 81:529 82:309 83:178 84:32
111:1 128:122 129:160 130:87 131:185 132:34
134:188 135:17 136:181 137:55 138:181 139:38
140:184 141:107 142:123 143:66 144:162 145:42
146:325 147:94 148:396 149:110 150:87 151:65
152:151 153:68 154:2 155:130 156:58 157:73
158:142 159:162 160:60 161:71 162:374 163:80
164:212 165:161 166:118 167:221 168:357 169:120
170:279 171:9 192:5576 193:2891 194:2135 195:1520
196:642 198:3675 199:3286 200:3702 201:20 202:4880
203:5710 204:3330 205:2093 206:2432 207:2649 208:2272
209:3003 210:1494 211:635 212:1109 213:1186 214:131
215:30 216:3685 217:1048 218:176 219:109 220:256
221:37 222:43
End of report
