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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 29 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149071
Prefixes after maximum aggregation: 88338
Unique aggregates announced to Internet: 71566
Total ASes present in the Internet Routing Table: 18317
Origin-only ASes present in the Internet Routing Table: 15918
Origin ASes announcing only one prefix: 7450
Transit ASes present in the Internet Routing Table: 2399
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: 1346652264
Equivalent to 80 /8s, 68 /16s and 72 /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: 68692
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28949
Total APNIC prefixes after maximum aggregation: 14394
Prefixes being announced from the APNIC address blocks: 27063
Unique aggregates announced from the APNIC address blocks: 14266
APNIC Region origin ASes present in the Internet Routing Table: 2157
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165352576
Equivalent to 9 /8s, 219 /16s and 20 /24s
Percentage of available APNIC address space announced: 75.5
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: 84566
Total ARIN prefixes after maximum aggregation: 51519
Prefixes being announced from the ARIN address blocks: 64689
Unique aggregates announced from the ARIN address blocks: 23249
ARIN Region origin ASes present in the Internet Routing Table: 9643
ARIN Region origin ASes announcing only one prefix: 3465
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234359552
Equivalent to 13 /8s, 248 /16s and 11 /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: 27767
Total RIPE prefixes after maximum aggregation: 19360
Prefixes being announced from the RIPE address blocks: 24636
Unique aggregates announced from the RIPE address blocks: 16166
RIPE Region origin ASes present in the Internet Routing Table: 5949
RIPE Region origin ASes announcing only one prefix: 3201
RIPE Region transit ASes present in the Internet Routing Table: 1016
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174741888
Equivalent to 10 /8s, 106 /16s and 89 /24s
Percentage of available RIPE address space announced: 61.3
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: 6549
Total LACNIC prefixes after maximum aggregation: 2361
Prefixes being announced from the LACNIC address blocks: 6402
Unique aggregates announced from the LACNIC address blocks: 3861
LACNIC Region origin ASes present in the Internet Routing Table: 399
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16376320
Equivalent to 0 /8s, 249 /16s and 226 /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: 704
Prefixes being announced from the AfriNIC address blocks: 874
Unique aggregates announced from the AfriNIC address blocks: 683
AfriNIC Region origin ASes present in the Internet Routing Table: 94
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: 2069760
Equivalent to 0 /8s, 31 /16s and 149 /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 806 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 367 133 53 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 320 23 158 Pakistan Telecom
703 316 346 244 UUNET
2764 283 273 231 connect.com.au pty ltd
7474 264 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 234 72 125 COMindico Australia
9498 231 82 50 BHARTI BT INTERNET LTD.
9800 228 380 68 CHINA UNICOM
7563 220 48 162 Korea Internet Infrastructure
10036 209 19 190 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 1432 6697 998 AT&T WorldNet Services
701 1243 8433 892 UUNET Technologies, Inc.
1239 929 2882 618 Sprint
2386 844 530 608 AT&T Data Communications Serv
6197 809 378 350 BellSouth Network Solutions,
4323 790 637 213 Time Warner Telecom
18566 749 208 6 Covad Communications
721 719 21016 297 DLA Systems Automation Center
209 646 3458 508 Qwest
3356 639 10955 445 Level 3 Communications, LLC
20115 568 430 305 Charter Communications
3561 560 2417 424 Cable & Wireless USA
852 514 1142 398 Telus Advanced Communications
7843 496 708 103 Adelphia Corp.
7132 448 8287 375 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 413 36 19 Armstrong Cable Services
22909 408 843 57 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2010 510 UUNET - Commercial IP service
3320 297 2485 234 Deutsche Telekom AG
8220 280 461 266 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 205 114 183 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 159 30 128 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 304 453 132 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 133 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 86 7 20 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 52 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
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
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 790 577 Time Warner Telecom
6197 809 459 BellSouth Network Solutions,
9583 539 434 Satyam Infoway Ltd.,
721 719 422 DLA Systems Automation Center
27364 413 394 Armstrong Cable Services
7843 496 393 Adelphia Corp.
5668 407 389 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 401 370 E.Spire Communications, Inc.
701 1243 351 UUNET Technologies, Inc.
22909 408 351 Comcast Cable Corporation
6478 419 325 AT&T Worldnet Services
17676 369 315 XTAGE CORPORATION
4755 367 314 Videsh Sanchar Nigam Ltd. Aut
1239 929 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 542 276 Korea Internet Exchange for "
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
/13:137 /14:312 /15:555 /16:8108 /17:2272 /18:3897
/19:9748 /20:10392 /21:7925 /22:10963 /23:12668 /24:81150
/25:237 /26:222 /27:120 /28:66 /29:53 /30:110
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 734 749 Covad Communications
6197 658 809 BellSouth Network Solutions,
2386 611 844 AT&T Data Communications Serv
7018 576 1432 AT&T WorldNet Services
27364 397 413 Armstrong Cable Services
1239 376 929 Sprint
9583 376 539 Satyam Infoway Ltd.,
702 372 619 UUNET - Commercial IP service
4766 362 542 Korea Internet Exchange for "
5668 352 407 Century Telephone
701 346 1243 UUNET Technologies, Inc.
6198 316 434 BellSouth Network Solutions,
6467 299 401 E.Spire Communications, Inc.
6517 282 306 Yipes Communications, Inc.
20115 277 568 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 254 790 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
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 32:67 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:21 60:2 61:601 62:499 63:1840 64:2448
65:2076 66:2461 67:444 68:537 69:754 70:33
72:1 80:505 81:541 82:295 83:188 84:49
128:129 129:165 130:83 131:185 132:34 134:186
135:19 136:187 137:56 138:184 139:38 140:195
141:108 142:123 143:69 144:159 145:42 146:294
147:94 148:328 149:109 150:94 151:65 152:143
153:68 154:2 155:128 156:58 157:67 158:131
159:163 160:61 161:70 162:363 163:80 164:215
165:158 166:121 167:221 168:340 169:121 170:294
171:9 192:5563 193:2917 194:2161 195:1499 196:609
198:3683 199:3292 200:3844 201:23 202:4904 203:5734
204:3462 205:2083 206:2251 207:2554 208:2134 209:3004
210:1499 211:637 212:1132 213:1199 214:129 215:30
216:3679 217:1036 218:175 219:79 220:271 221:65
222:22
End of report
