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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 28 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149267
Prefixes after maximum aggregation: 88324
Unique aggregates announced to Internet: 71578
Total ASes present in the Internet Routing Table: 18319
Origin-only ASes present in the Internet Routing Table: 15915
Origin ASes announcing only one prefix: 7454
Transit ASes present in the Internet Routing Table: 2404
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1347021416
Equivalent to 80 /8s, 73 /16s and 234 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68847
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29062
Total APNIC prefixes after maximum aggregation: 14373
Prefixes being announced from the APNIC address blocks: 27189
Unique aggregates announced from the APNIC address blocks: 14275
APNIC Region origin ASes present in the Internet Routing Table: 2155
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165327744
Equivalent to 9 /8s, 218 /16s and 179 /24s
Percentage of available APNIC address space announced: 75.4
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: 84586
Total ARIN prefixes after maximum aggregation: 51500
Prefixes being announced from the ARIN address blocks: 64688
Unique aggregates announced from the ARIN address blocks: 23236
ARIN Region origin ASes present in the Internet Routing Table: 9638
ARIN Region origin ASes announcing only one prefix: 3465
ARIN Region transit ASes present in the Internet Routing Table: 935
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234327040
Equivalent to 13 /8s, 247 /16s and 140 /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: 27840
Total RIPE prefixes after maximum aggregation: 19384
Prefixes being announced from the RIPE address blocks: 24702
Unique aggregates announced from the RIPE address blocks: 16194
RIPE Region origin ASes present in the Internet Routing Table: 5958
RIPE Region origin ASes announcing only one prefix: 3207
RIPE Region transit ASes present in the Internet Routing Table: 1021
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 175071616
Equivalent to 10 /8s, 111 /16s and 97 /24s
Percentage of available RIPE address space announced: 61.4
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: 6539
Total LACNIC prefixes after maximum aggregation: 2366
Prefixes being announced from the LACNIC address blocks: 6393
Unique aggregates announced from the LACNIC address blocks: 3846
LACNIC Region origin ASes present in the Internet Routing Table: 400
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16362240
Equivalent to 0 /8s, 249 /16s and 171 /24s
Percentage of available LACNIC address space announced: 48.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1235
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 871
Unique aggregates announced from the AfriNIC address blocks: 684
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: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2071808
Equivalent to 0 /8s, 31 /16s and 157 /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 856 4407 163 Data Communications Bureau
1221 805 1184 579 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 539 41 105 Satyam Infoway Ltd.,
17676 369 5516 54 XTAGE CORPORATION
4755 366 132 52 Videsh Sanchar Nigam Ltd. Aut
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 343 161 33 China Netcom Corp.
17557 320 23 158 Pakistan Telecom
703 316 346 243 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
9942 235 72 125 COMindico Australia
4802 233 28 141 Wantree Development
9498 231 82 50 BHARTI BT INTERNET LTD.
4804 230 165 55 Microplex PTY LTD
9800 226 374 69 CHINA UNICOM
7563 220 48 162 Korea Internet Infrastructure
4780 211 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6696 997 AT&T WorldNet Services
701 1246 8433 895 UUNET Technologies, Inc.
1239 934 2883 621 Sprint
2386 844 530 608 AT&T Data Communications Serv
6197 813 378 350 BellSouth Network Solutions,
4323 792 637 215 Time Warner Telecom
18566 749 208 6 Covad Communications
721 718 21028 296 DLA Systems Automation Center
209 644 3458 506 Qwest
3356 644 10956 446 Level 3 Communications, LLC
20115 567 428 304 Charter Communications
3561 554 2417 424 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 497 709 98 Adelphia Corp.
7132 449 8288 376 SBC Internet Services
705 436 163 276 UUNET Technologies, Inc.
6198 434 376 200 BellSouth Network Solutions,
6478 419 730 94 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 630 2011 521 UUNET - Commercial IP service
3320 300 2486 237 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 278 1100 268 TeliaNet Sweden
21502 261 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 208 743 180 SWIPnet Swedish IP Network
8708 204 113 182 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
8866 156 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
25186 149 154 105 France Telecom Transpac's Tra
5400 148 207 119 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 345 139 69 ImpSat
8151 307 439 133 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 165 12 35 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 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
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 81 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 80 5 33 ANDINATEL S.A.
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 631 220 The Internet Solution
2905 114 276 83 The Internetworking Company o
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
20928 56 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 33 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
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
15706 15 4 2 Sudatel Internet Exchange Aut
8346 14 7 14 SONATEL-AS Autonomous System
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
21491 13 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 749 743 Covad Communications
4134 856 693 Data Communications Bureau
4323 792 577 Time Warner Telecom
6197 813 463 BellSouth Network Solutions,
9583 539 434 Satyam Infoway Ltd.,
721 718 422 DLA Systems Automation Center
7843 497 399 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 405 387 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 403 372 E.Spire Communications, Inc.
701 1246 351 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 419 325 AT&T Worldnet Services
17676 369 315 XTAGE CORPORATION
4755 366 314 Videsh Sanchar Nigam Ltd. Aut
1239 934 313 Sprint
9929 343 310 China Netcom Corp.
4355 392 293 EarthLink, Inc.
9443 359 280 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
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
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 /10:6 /11:15 /12:61
/13:138 /14:312 /15:555 /16:8109 /17:2268 /18:3901
/19:9747 /20:10398 /21:7925 /22:10974 /23:12682 /24:81316
/25:235 /26:224 /27:120 /28:63 /29:52 /30:110
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 734 749 Covad Communications
6197 662 813 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 571 1426 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 383 630 UUNET - Commercial IP service
9583 376 539 Satyam Infoway Ltd.,
1239 375 934 Sprint
4766 362 542 Korea Internet Exchange for "
5668 352 405 Century Telephone
701 346 1246 UUNET Technologies, Inc.
6198 316 434 BellSouth Network Solutions,
6467 300 403 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 567 Charter Communications
9929 274 343 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 792 Time Warner Telecom
3320 245 300 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:746 32:72 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:21 60:2 61:604 62:500 63:1829 64:2444
65:2072 66:2461 67:444 68:537 69:756 70:33
72:2 80:516 81:550 82:309 83:190 84:49
128:131 129:165 130:83 131:184 132:34 134:186
135:19 136:185 137:56 138:184 139:41 140:195
141:108 142:123 143:69 144:159 145:42 146:298
147:94 148:324 149:110 150:94 151:65 152:143
153:68 154:2 155:128 156:58 157:67 158:131
159:163 160:61 161:70 162:377 163:79 164:215
165:158 166:118 167:221 168:342 169:121 170:294
171:9 192:5562 193:2911 194:2164 195:1503 196:605
198:3689 199:3299 200:3836 201:23 202:4922 203:5750
204:3461 205:2096 206:2242 207:2551 208:2137 209:3002
210:1530 211:676 212:1130 213:1203 214:129 215:30
216:3682 217:1047 218:174 219:80 220:271 221:65
222:22
End of report
