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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 02 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155483
Prefixes after maximum aggregation: 90411
Unique aggregates announced to Internet: 74287
Total ASes present in the Internet Routing Table: 18894
Origin-only ASes present in the Internet Routing Table: 16407
Origin ASes announcing only one prefix: 7698
Transit ASes present in the Internet Routing Table: 2487
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1371452712
Equivalent to 81 /8s, 190 /16s and 181 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72657
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30847
Total APNIC prefixes after maximum aggregation: 14869
Prefixes being announced from the APNIC address blocks: 28872
Unique aggregates announced from the APNIC address blocks: 14602
APNIC Region origin ASes present in the Internet Routing Table: 2195
APNIC Region origin ASes announcing only one prefix: 648
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: 16
Number of APNIC addresses announced to Internet: 172402560
Equivalent to 10 /8s, 70 /16s and 167 /24s
Percentage of available APNIC address space announced: 64.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87268
Total ARIN prefixes after maximum aggregation: 52229
Prefixes being announced from the ARIN address blocks: 66580
Unique aggregates announced from the ARIN address blocks: 24025
ARIN Region origin ASes present in the Internet Routing Table: 9840
ARIN Region origin ASes announcing only one prefix: 3579
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 240254976
Equivalent to 14 /8s, 82 /16s and 0 /24s
Percentage of available ARIN address space announced: 71.6
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: 29242
Total RIPE prefixes after maximum aggregation: 20217
Prefixes being announced from the RIPE address blocks: 26200
Unique aggregates announced from the RIPE address blocks: 17322
RIPE Region origin ASes present in the Internet Routing Table: 6273
RIPE Region origin ASes announcing only one prefix: 3326
RIPE Region transit ASes present in the Internet Routing Table: 1068
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 187218496
Equivalent to 11 /8s, 40 /16s and 186 /24s
Percentage of available RIPE address space announced: 65.6
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: 6793
Total LACNIC prefixes after maximum aggregation: 2381
Prefixes being announced from the LACNIC address blocks: 6692
Unique aggregates announced from the LACNIC address blocks: 4024
LACNIC Region origin ASes present in the Internet Routing Table: 415
LACNIC Region origin ASes announcing only one prefix: 121
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17245696
Equivalent to 1 /8s, 7 /16s and 38 /24s
Percentage of available LACNIC address space announced: 51.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1326
Total AfriNIC prefixes after maximum aggregation: 715
Prefixes being announced from the AfriNIC address blocks: 880
Unique aggregates announced from the AfriNIC address blocks: 669
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2109696
Equivalent to 0 /8s, 32 /16s and 49 /24s
Percentage of available AfriNIC address space announced: 12.6
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 882 4624 171 Data Communications Bureau
1221 787 1184 562 Telstra Pty Ltd
4766 582 3414 279 Korea Internet Exchange for "
9583 574 48 11 Satyam Infoway Ltd.,
4755 454 178 101 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
9929 351 164 35 China Netcom Corp.
2907 347 1838 322 SINET Japan
17557 324 23 149 Pakistan Telecom
7545 299 85 63 TPG Internet Pty Ltd
10036 294 27 270 C&M Communication Co. Ltd.
7474 277 296 207 Optus Communications Pty Ltd
2764 273 254 220 connect.com.au pty ltd
703 271 340 212 UUNET
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
9498 234 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
17974 230 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1458 6607 977 AT&T WorldNet Services
721 1127 21803 315 DLA Systems Automation Center
701 1057 8335 907 UUNET Technologies, Inc.
1239 942 2880 620 Sprint
6197 849 378 400 BellSouth Network Solutions,
4323 838 672 218 Time Warner Telecom
2386 813 505 602 AT&T Data Communications Serv
7015 796 212 22 AT&T Broadband
18566 768 208 6 Covad Communications
209 655 3404 502 Qwest
3356 591 10867 441 Level 3 Communications, LLC
3561 587 2370 416 Cable & Wireless USA
20115 570 475 304 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 501 819 96 AT&T Worldnet Services
3602 492 120 94 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
6198 453 472 203 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 441 1088 21 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 274 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 224 471 219 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 211 119 192 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
3215 187 1024 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 175 47 140 Dynamic Network Technologies,
8866 167 19 24 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 159 322 105 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 140 219 124 BT Ignite European Backbone
3303 129 577 124 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 159 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 135 90 92 Global One Communicaoes Ltda
6503 115 147 79 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
11992 94 8 36 Integrated Systems
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 112 15 18 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 76 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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
21280 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1127 812 DLA Systems Automation Center
7015 796 774 AT&T Broadband
18566 768 762 Covad Communications
4134 882 711 Data Communications Bureau
4323 838 620 Time Warner Telecom
9583 574 563 Satyam Infoway Ltd.,
6197 849 449 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 441 420 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 501 405 AT&T Worldnet Services
3602 492 398 Sprint Canada, Inc.
22909 421 358 Comcast Cable Corporation
4755 454 353 Videsh Sanchar Nigam Ltd. Aut
6467 365 334 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
1239 942 322 Sprint
9929 351 316 China Netcom Corp.
4766 582 303 Korea Internet Exchange for "
13609 335 301 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
65004 PRIVATE 200.0.113.0/24 28477 *
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
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
172.215.0.0/16 1668 GNN Hosting Service
172.216.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:575 /16:8285 /17:2383 /18:4072
/19:10046 /20:10636 /21:8444 /22:11747 /23:12947 /24:84850
/25:297 /26:257 /27:115 /28:64 /29:33 /30:125
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7015 764 796 AT&T Broadband
18566 753 768 Covad Communications
6197 694 849 BellSouth Network Solutions,
7018 620 1458 AT&T WorldNet Services
2386 586 813 AT&T Data Communications Serv
27364 445 460 Armstrong Cable Services
9583 402 574 Satyam Infoway Ltd.,
4766 398 582 Korea Internet Exchange for "
702 377 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 369 942 Sprint
6198 326 453 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 293 335 Choice One Communications Inc
4323 284 838 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 276 365 E.Spire Communications, Inc.
9929 276 351 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
701 260 1057 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1479 13:1 15:6 16:2
17:3 18:4 20:4 24:1097 32:68 33:3
38:91 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:675 62:515
63:1857 64:2569 65:2108 66:2603 67:490 68:496
69:902 70:55 71:2 72:50 80:560 81:513
82:363 83:232 84:106 85:86 128:127 129:165
130:90 131:194 132:37 134:144 135:30 136:206
137:67 138:181 139:47 140:192 141:102 142:139
143:121 144:249 145:45 146:281 147:98 148:263
149:162 150:94 151:62 152:107 153:72 154:2
155:136 156:70 157:75 158:149 159:164 160:67
161:59 162:414 163:85 164:213 165:157 166:127
167:225 168:384 169:131 170:307 171:8 192:5679
193:3072 194:2249 195:1576 196:608 198:3848 199:3242
200:3945 201:43 202:5208 203:5909 204:3594 205:2026
206:2316 207:2658 208:2100 209:3064 210:1560 211:768
212:1152 213:1248 214:239 215:31 216:3700 217:1096
218:188 219:125 220:344 221:79 222:77
End of report
