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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 12 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148998
Prefixes after maximum aggregation: 87922
Unique aggregates announced to Internet: 71118
Total ASes present in the Internet Routing Table: 18207
Origin-only ASes present in the Internet Routing Table: 15811
Origin ASes announcing only one prefix: 7409
Transit ASes present in the Internet Routing Table: 2396
Transit-only ASes present in the Internet Routing Table: 76
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: 59
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1344668076
Equivalent to 80 /8s, 38 /16s and 1 /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: 68645
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28646
Total APNIC prefixes after maximum aggregation: 14314
Prefixes being announced from the APNIC address blocks: 26802
Unique aggregates announced from the APNIC address blocks: 14306
APNIC Region origin ASes present in the Internet Routing Table: 2149
APNIC Region origin ASes announcing only one prefix: 645
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164610944
Equivalent to 9 /8s, 207 /16s and 195 /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: 84959
Total ARIN prefixes after maximum aggregation: 51369
Prefixes being announced from the ARIN address blocks: 65029
Unique aggregates announced from the ARIN address blocks: 23022
ARIN Region origin ASes present in the Internet Routing Table: 9604
ARIN Region origin ASes announcing only one prefix: 3452
ARIN Region transit ASes present in the Internet Routing Table: 930
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 234042624
Equivalent to 13 /8s, 243 /16s and 53 /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: 27647
Total RIPE prefixes after maximum aggregation: 19200
Prefixes being announced from the RIPE address blocks: 24488
Unique aggregates announced from the RIPE address blocks: 16097
RIPE Region origin ASes present in the Internet Routing Table: 5893
RIPE Region origin ASes announcing only one prefix: 3179
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: 173369280
Equivalent to 10 /8s, 85 /16s and 103 /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: 6465
Total LACNIC prefixes after maximum aggregation: 2349
Prefixes being announced from the LACNIC address blocks: 6297
Unique aggregates announced from the LACNIC address blocks: 3706
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: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16273920
Equivalent to 0 /8s, 248 /16s and 82 /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: 886
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 843 4391 162 Data Communications Bureau
1221 809 1184 581 Telstra Pty Ltd
4766 543 3407 266 Korea Internet Exchange for "
9583 534 41 104 Satyam Infoway Ltd.,
17676 370 5532 52 XTAGE CORPORATION
4755 369 132 52 Videsh Sanchar Nigam Ltd. Aut
2907 353 1857 327 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 345 161 33 China Netcom Corp.
17557 318 23 158 Pakistan Telecom
703 311 342 240 UUNET
2764 285 272 233 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 227 50 49 BHARTI BT INTERNET LTD.
7563 220 48 163 Korea Internet Infrastructure
10036 204 19 185 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 1407 6749 980 AT&T WorldNet Services
701 1269 8450 917 UUNET Technologies, Inc.
1239 938 2867 623 Sprint
3549 848 563 206 Global Crossing
2386 845 532 606 AT&T Data Communications Serv
6197 814 491 319 BellSouth Network Solutions,
4323 788 637 215 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
852 512 1142 398 Telus Advanced Communications
7843 492 693 98 Adelphia Corp.
7132 448 8287 376 SBC Internet Services
6198 434 403 203 BellSouth Network Solutions,
705 431 163 273 UUNET Technologies, Inc.
27364 411 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 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 206 114 184 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 154 30 129 Dynamic Network Technologies,
8866 152 18 19 Bulgarian Telecommunication C
25186 150 154 106 France Telecom Transpac's Tra
3269 148 1259 66 TELECOM ITALIA
5400 148 207 120 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 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 194 94 20 Telefonica Del Peru
11664 170 13 32 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 101 9 31 Integrated Systems
11311 88 8 26 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
14522 82 5 8 SatNet S.A.
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
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 848 642 Global Crossing
4323 788 573 Time Warner Telecom
6197 814 495 BellSouth Network Solutions,
9583 534 430 Satyam Infoway Ltd.,
721 723 425 DLA Systems Automation Center
7843 492 394 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 398 380 Century Telephone
22773 390 372 Cox Communications, Inc. Atla
6467 390 359 E.Spire Communications, Inc.
22909 383 353 Comcast Cable Corporation
701 1269 352 UUNET Technologies, Inc.
17676 370 318 XTAGE CORPORATION
4755 369 317 Videsh Sanchar Nigam Ltd. Aut
1239 938 315 Sprint
9929 345 312 China Netcom Corp.
6478 379 300 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 *
33947 UNALLOCATED 84.21.0.0/22 29278 Deninet Ltd. HU
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 /14:312 /15:554 /16:8104 /17:2249 /18:3866
/19:9699 /20:10359 /21:7880 /22:10887 /23:12532 /24:81496
/25:234 /26:213 /27:114 /28:59 /29:45 /30:114
/31:0 /32:39
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 610 845 AT&T Data Communications Serv
7018 559 1407 AT&T WorldNet Services
3549 448 848 Global Crossing
27364 395 411 Armstrong Cable Services
702 380 628 UUNET - Commercial IP service
1239 376 938 Sprint
9583 373 534 Satyam Infoway Ltd.,
4766 363 543 Korea Internet Exchange for "
701 351 1269 UUNET Technologies, Inc.
5668 346 398 Century Telephone
6198 318 434 BellSouth Network Solutions,
20115 299 589 Charter Communications
6467 287 390 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
3320 247 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:8 12:1405 13:1 15:1 16:2
17:3 18:1 20:6 24:739 30:1 32:68
33:2 38:80 40:54 44:3 47:2 52:3
55:1 56:3 57:20 60:6 61:520 62:509
63:1834 64:2522 65:2068 66:2500 67:451 68:549
69:735 70:81 80:520 81:532 82:311 83:176
84:39 128:121 129:165 130:87 131:182 132:34
134:188 135:17 136:185 137:54 138:181 139:38
140:184 141:107 142:123 143:69 144:164 145:42
146:326 147:94 148:396 149:110 150:87 151:65
152:150 153:68 154:2 155:130 156:57 157:74
158:142 159:163 160:60 161:71 162:374 163:79
164:213 165:161 166:118 167:221 168:368 169:120
170:280 171:9 192:5577 193:2889 194:2140 195:1524
196:644 198:3674 199:3304 200:3779 201:20 202:4869
203:5734 204:3375 205:2090 206:2427 207:2637 208:2232
209:2989 210:1501 211:638 212:1116 213:1195 214:130
215:30 216:3678 217:1048 218:177 219:101 220:259
221:37 222:43
End of report
