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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 14 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152545
Prefixes after maximum aggregation: 89643
Unique aggregates announced to Internet: 73079
Total ASes present in the Internet Routing Table: 18619
Origin-only ASes present in the Internet Routing Table: 16149
Origin ASes announcing only one prefix: 7580
Transit ASes present in the Internet Routing Table: 2470
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1358718824
Equivalent to 80 /8s, 252 /16s and 103 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70605
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29674
Total APNIC prefixes after maximum aggregation: 14673
Prefixes being announced from the APNIC address blocks: 27730
Unique aggregates announced from the APNIC address blocks: 14461
APNIC Region origin ASes present in the Internet Routing Table: 2170
APNIC Region origin ASes announcing only one prefix: 645
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168820992
Equivalent to 10 /8s, 16 /16s and 1 /24s
Percentage of available APNIC address space announced: 77.0
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: 86295
Total ARIN prefixes after maximum aggregation: 52094
Prefixes being announced from the ARIN address blocks: 66053
Unique aggregates announced from the ARIN address blocks: 23757
ARIN Region origin ASes present in the Internet Routing Table: 9767
ARIN Region origin ASes announcing only one prefix: 3522
ARIN Region transit ASes present in the Internet Routing Table: 971
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236564992
Equivalent to 14 /8s, 25 /16s and 178 /24s
Percentage of available ARIN address space announced: 70.5
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: 28581
Total RIPE prefixes after maximum aggregation: 19792
Prefixes being announced from the RIPE address blocks: 25474
Unique aggregates announced from the RIPE address blocks: 16721
RIPE Region origin ASes present in the Internet Routing Table: 6112
RIPE Region origin ASes announcing only one prefix: 3272
RIPE Region transit ASes present in the Internet Routing Table: 1047
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 182183680
Equivalent to 10 /8s, 219 /16s and 231 /24s
Percentage of available RIPE address space announced: 63.9
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: 6741
Total LACNIC prefixes after maximum aggregation: 2391
Prefixes being announced from the LACNIC address blocks: 6582
Unique aggregates announced from the LACNIC address blocks: 4038
LACNIC Region origin ASes present in the Internet Routing Table: 407
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16880640
Equivalent to 1 /8s, 1 /16s and 148 /24s
Percentage of available LACNIC address space announced: 50.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1246
Total AfriNIC prefixes after maximum aggregation: 693
Prefixes being announced from the AfriNIC address blocks: 847
Unique aggregates announced from the AfriNIC address blocks: 676
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 21
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: 12
Number of AfriNIC addresses announced to Internet: 2084096
Equivalent to 0 /8s, 31 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 12.4
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 864 4415 166 Data Communications Bureau
1221 793 1184 567 Telstra Pty Ltd
9583 569 47 37 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 430 143 92 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 355 1873 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 323 350 248 UUNET
17557 322 23 158 Pakistan Telecom
2764 287 272 232 connect.com.au pty ltd
10036 285 26 261 C&M Communication Co. Ltd.
7474 274 268 203 Optus Communications Pty Ltd
9800 231 381 71 CHINA UNICOM
4802 229 28 138 Wantree Development
9498 228 81 53 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
17974 217 62 11 PT TELEKOMUNIKASI INDONESIA
4780 216 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1430 6619 989 AT&T WorldNet Services
701 1065 8350 879 UUNET Technologies, Inc.
721 1053 21808 297 DLA Systems Automation Center
1239 931 2882 619 Sprint
2386 863 529 614 AT&T Data Communications Serv
6197 821 384 354 BellSouth Network Solutions,
4323 810 670 220 Time Warner Telecom
18566 755 208 6 Covad Communications
209 654 3422 509 Qwest
3356 643 10930 459 Level 3 Communications, LLC
20115 592 462 317 Charter Communications
3561 546 2369 415 Cable & Wireless USA
852 522 1142 404 Telus Advanced Communications
7843 482 726 93 Adelphia Corp.
6478 465 814 97 AT&T Worldnet Services
7132 452 8292 384 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 422 87 18 Century Telephone
22909 416 897 60 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 629 2024 520 UUNET - Commercial IP service
3320 306 2997 243 Deutsche Telekom AG
3301 282 1112 273 TeliaNet Sweden
8220 279 464 264 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 482 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 207 708 172 SWIPnet Swedish IP Network
8708 202 116 186 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 173 990 75 France Telecom Transpac
6746 167 46 135 Dynamic Network Technologies,
8866 164 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 155 1330 69 TELECOM ITALIA
3300 146 165 74 AUCS Communications Services
25186 144 138 101 France Telecom Transpac's Tra
3303 132 609 127 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 139 72 ImpSat
8151 312 472 138 UniNet S.A. de C.V.
16814 218 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 190 92 21 Telefonica Del Peru
11664 170 14 24 Keytech SA
7303 148 66 24 Telecom Argentina Stet-France
6505 142 91 96 Global One Communicaoes Ltda
6503 127 148 84 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 85 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
15311 77 23 37 Telefonica Empresas
6471 72 73 27 ENTEL CHILE S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
12455 24 4 3 Jambonet 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
8452 17 20 5 TEDATA
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1053 756 DLA Systems Automation Center
18566 755 749 Covad Communications
4134 864 698 Data Communications Bureau
4323 810 590 Time Warner Telecom
9583 569 532 Satyam Infoway Ltd.,
6197 821 467 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 422 404 Century Telephone
22773 412 391 Cox Communications, Inc. Atla
7843 482 389 Adelphia Corp.
6478 465 368 AT&T Worldnet Services
22909 416 356 Comcast Cable Corporation
6467 373 342 E.Spire Communications, Inc.
4755 430 338 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 931 312 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
376 399 285 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
192.200.100.0/24 7018 AT&T WorldNet Services
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 /10:7 /11:15 /12:59
/13:138 /14:312 /15:559 /16:8195 /17:2313 /18:4002
/19:9993 /20:10566 /21:8108 /22:11287 /23:12803 /24:83251
/25:269 /26:241 /27:125 /28:59 /29:40 /30:132
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 667 821 BellSouth Network Solutions,
2386 630 863 AT&T Data Communications Serv
7018 583 1430 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 399 569 Satyam Infoway Ltd.,
702 384 629 UUNET - Commercial IP service
1239 371 931 Sprint
4766 368 548 Korea Internet Exchange for "
5668 365 422 Century Telephone
6198 326 447 BellSouth Network Solutions,
13609 286 328 Choice One Communications Inc
10036 285 285 C&M Communication Co. Ltd.
6467 283 373 E.Spire Communications, Inc.
6517 283 306 Yipes Communications, Inc.
9929 283 354 China Netcom Corp.
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 260 810 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1455 13:1 15:5 16:2
17:3 18:3 20:5 24:739 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:11 61:657 62:513 63:1848
64:2509 65:2080 66:2521 67:474 68:524 69:841
70:44 72:17 80:530 81:582 82:365 83:213
84:79 85:4 128:115 129:163 130:92 131:190
132:36 134:190 135:30 136:187 137:70 138:188
139:34 140:227 141:109 142:136 143:118 144:164
145:40 146:282 147:95 148:262 149:124 150:92
151:63 152:121 153:70 154:2 155:132 156:62
157:71 158:137 159:162 160:61 161:60 162:379
163:82 164:218 165:165 166:124 167:222 168:366
169:126 170:313 171:8 192:5660 193:3004 194:2214
195:1543 196:588 198:3893 199:3308 200:3925 201:31
202:4969 203:5810 204:3570 205:2107 206:2325 207:2557
208:2108 209:3061 210:1575 211:702 212:1163 213:1245
214:227 215:31 216:3739 217:1065 218:181 219:85
220:298 221:61 222:32
End of report
