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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 13 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149095
Prefixes after maximum aggregation: 87948
Unique aggregates announced to Internet: 71125
Total ASes present in the Internet Routing Table: 18220
Origin-only ASes present in the Internet Routing Table: 15823
Origin ASes announcing only one prefix: 7415
Transit ASes present in the Internet Routing Table: 2397
Transit-only ASes present in the Internet Routing Table: 73
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: 15
Number of addresses announced to Internet: 1344665580
Equivalent to 80 /8s, 37 /16s and 247 /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: 68729
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28673
Total APNIC prefixes after maximum aggregation: 14306
Prefixes being announced from the APNIC address blocks: 26832
Unique aggregates announced from the APNIC address blocks: 14290
APNIC Region origin ASes present in the Internet Routing Table: 2149
APNIC Region origin ASes announcing only one prefix: 644
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164594304
Equivalent to 9 /8s, 207 /16s and 130 /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: 84984
Total ARIN prefixes after maximum aggregation: 51386
Prefixes being announced from the ARIN address blocks: 65044
Unique aggregates announced from the ARIN address blocks: 23026
ARIN Region origin ASes present in the Internet Routing Table: 9613
ARIN Region origin ASes announcing only one prefix: 3457
ARIN Region transit ASes present in the Internet Routing Table: 933
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234051072
Equivalent to 13 /8s, 243 /16s and 86 /24s
Percentage of available ARIN address space announced: 69.8
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: 27711
Total RIPE prefixes after maximum aggregation: 19223
Prefixes being announced from the RIPE address blocks: 24552
Unique aggregates announced from the RIPE address blocks: 16083
RIPE Region origin ASes present in the Internet Routing Table: 5900
RIPE Region origin ASes announcing only one prefix: 3181
RIPE Region transit ASes present in the Internet Routing Table: 1016
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 173359616
Equivalent to 10 /8s, 85 /16s and 66 /24s
Percentage of available RIPE address space announced: 60.8
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: 6446
Total LACNIC prefixes after maximum aggregation: 2343
Prefixes being announced from the LACNIC address blocks: 6279
Unique aggregates announced from the LACNIC address blocks: 3702
LACNIC Region origin ASes present in the Internet Routing Table: 394
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16272640
Equivalent to 0 /8s, 248 /16s and 77 /24s
Percentage of available LACNIC address space announced: 48.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1273
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 887
Unique aggregates announced from the AfriNIC address blocks: 678
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: 2068736
Equivalent to 0 /8s, 31 /16s and 145 /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 843 4391 162 Data Communications Bureau
1221 811 1184 583 Telstra Pty Ltd
4766 543 3407 266 Korea Internet Exchange for "
9583 534 41 103 Satyam Infoway Ltd.,
4755 372 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 370 5532 52 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 345 161 33 China Netcom Corp.
17557 319 23 159 Pakistan Telecom
703 310 341 239 UUNET
2764 285 272 233 connect.com.au pty ltd
7474 270 269 201 Optus Communications Pty Ltd
9942 236 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 227 50 49 BHARTI BT INTERNET LTD.
7563 220 48 163 Korea Internet Infrastructure
10036 204 19 185 C&M Communication Co. Ltd.
17974 203 62 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1410 6749 981 AT&T WorldNet Services
701 1267 8450 915 UUNET Technologies, Inc.
1239 938 2867 623 Sprint
3549 850 563 206 Global Crossing
2386 844 532 605 AT&T Data Communications Serv
6197 814 491 319 BellSouth Network Solutions,
4323 798 638 216 Time Warner Telecom
18566 744 208 6 Covad Communications
721 723 21036 298 DLA Systems Automation Center
3356 644 10923 442 Level 3 Communications, LLC
209 627 3465 495 Qwest
20115 589 427 302 Charter Communications
3561 569 2513 432 Cable & Wireless USA
852 510 1140 396 Telus Advanced Communications
7843 492 693 98 Adelphia Corp.
7132 448 8287 376 SBC Internet Services
6198 434 347 208 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
27364 412 36 19 Armstrong Cable Services
5668 398 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2013 520 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
3301 281 1100 271 TeliaNet Sweden
8220 279 461 265 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
1257 205 742 178 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
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 154 30 129 Dynamic Network Technologies,
8866 153 20 7 Bulgarian Telecommunication C
3269 150 1259 67 TELECOM ITALIA
25186 150 154 106 France Telecom Transpac's Tra
5400 149 207 120 BT Ignite European Backbone
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 302 439 127 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 206 100 54 Servicios Alestra S.A de C.V
6147 194 94 20 Telefonica Del Peru
11664 169 13 30 Keytech SA
6505 135 90 92 Global One Communicaoes Ltda
7303 134 60 24 Telecom Argentina Stet-France
6503 124 164 85 AVANTEL, S.A.
11992 101 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 80 5 33 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
14522 72 5 8 SatNet S.A.
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 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
24835 34 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
14988 26 16 1 Botswana Telecommunications C
8524 25 1 4 AUCEGYPT Autonomous System
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 744 738 Covad Communications
4134 843 681 Data Communications Bureau
3549 850 644 Global Crossing
4323 798 582 Time Warner Telecom
6197 814 495 BellSouth Network Solutions,
9583 534 431 Satyam Infoway Ltd.,
721 723 425 DLA Systems Automation Center
7843 492 394 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 398 380 Century Telephone
22773 390 372 Cox Communications, Inc. Atla
6467 390 359 E.Spire Communications, Inc.
22909 384 354 Comcast Cable Corporation
701 1267 352 UUNET Technologies, Inc.
4755 372 319 Videsh Sanchar Nigam Ltd. Aut
17676 370 318 XTAGE CORPORATION
1239 938 315 Sprint
9929 345 312 China Netcom Corp.
6478 381 300 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 3741 The Internet Solutio
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 3741 The Internet Solutio
22750 UNALLOCATED 196.44.92.0/24 3741 The Internet Solutio
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
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 /10:6 /11:15 /12:62
/13:137 /14:311 /15:554 /16:8104 /17:2249 /18:3875
/19:9705 /20:10364 /21:7890 /22:10881 /23:12548 /24:81553
/25:234 /26:213 /27:113 /28:59 /29:46 /30:114
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 729 744 Covad Communications
6197 658 814 BellSouth Network Solutions,
2386 609 844 AT&T Data Communications Serv
7018 560 1410 AT&T WorldNet Services
3549 450 850 Global Crossing
27364 396 412 Armstrong Cable Services
702 380 628 UUNET - Commercial IP service
1239 376 938 Sprint
9583 372 534 Satyam Infoway Ltd.,
4766 363 543 Korea Internet Exchange for "
701 348 1267 UUNET Technologies, Inc.
5668 346 398 Century Telephone
6198 318 434 BellSouth Network Solutions,
20115 299 589 Charter Communications
6467 288 390 E.Spire Communications, Inc.
9929 276 345 China Netcom Corp.
6517 272 295 Yipes Communications, Inc.
13609 266 309 Choice One Communications Inc
21502 266 269 NUMERICABLE is a cabled netwo
4323 254 798 Time Warner Telecom
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:8 12:1404 13:1 15:1 16:2
17:3 18:1 20:5 24:742 32:68 33:2
38:80 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:6 61:538 62:509 63:1835
64:2534 65:2069 66:2495 67:451 68:550 69:737
70:82 80:519 81:534 82:311 83:180 84:54
128:121 129:165 130:87 131:183 132:34 134:188
135:17 136:185 137:54 138:181 139:40 140:184
141:107 142:123 143:69 144:164 145:42 146:326
147:94 148:396 149:110 150:87 151:65 152:151
153:67 154:2 155:130 156:57 157:74 158:142
159:163 160:60 161:70 162:374 163:80 164:213
165:161 166:118 167:222 168:371 169:120 170:279
171:9 192:5578 193:2898 194:2144 195:1529 196:644
198:3680 199:3304 200:3767 201:20 202:4868 203:5736
204:3372 205:2089 206:2431 207:2639 208:2228 209:2989
210:1502 211:639 212:1115 213:1201 214:131 215:30
216:3656 217:1048 218:177 219:101 220:261 221:37
222:43
End of report
