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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 22 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151102
Prefixes after maximum aggregation: 89050
Unique aggregates announced to Internet: 72182
Total ASes present in the Internet Routing Table: 18477
Origin-only ASes present in the Internet Routing Table: 16024
Origin ASes announcing only one prefix: 7537
Transit ASes present in the Internet Routing Table: 2453
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1354560104
Equivalent to 80 /8s, 188 /16s and 242 /24s
Percentage of available address space announced: 36.5
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69611
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29285
Total APNIC prefixes after maximum aggregation: 14426
Prefixes being announced from the APNIC address blocks: 27345
Unique aggregates announced from the APNIC address blocks: 14204
APNIC Region origin ASes present in the Internet Routing Table: 2162
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 166948608
Equivalent to 9 /8s, 243 /16s and 111 /24s
Percentage of available APNIC address space announced: 76.2
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: 85814
Total ARIN prefixes after maximum aggregation: 52015
Prefixes being announced from the ARIN address blocks: 65750
Unique aggregates announced from the ARIN address blocks: 23562
ARIN Region origin ASes present in the Internet Routing Table: 9734
ARIN Region origin ASes announcing only one prefix: 3521
ARIN Region transit ASes present in the Internet Routing Table: 956
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235632896
Equivalent to 14 /8s, 11 /16s and 121 /24s
Percentage of available ARIN address space announced: 70.2
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: 28151
Total RIPE prefixes after maximum aggregation: 19557
Prefixes being announced from the RIPE address blocks: 24893
Unique aggregates announced from the RIPE address blocks: 16394
RIPE Region origin ASes present in the Internet Routing Table: 6016
RIPE Region origin ASes announcing only one prefix: 3226
RIPE Region transit ASes present in the Internet Routing Table: 1038
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 180414976
Equivalent to 10 /8s, 192 /16s and 234 /24s
Percentage of available RIPE address space announced: 63.3
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: 6600
Total LACNIC prefixes after maximum aggregation: 2357
Prefixes being announced from the LACNIC address blocks: 6447
Unique aggregates announced from the LACNIC address blocks: 3977
LACNIC Region origin ASes present in the Internet Routing Table: 403
LACNIC Region origin ASes announcing only one prefix: 119
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: 16623104
Equivalent to 0 /8s, 253 /16s and 166 /24s
Percentage of available LACNIC address space announced: 49.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1243
Total AfriNIC prefixes after maximum aggregation: 695
Prefixes being announced from the AfriNIC address blocks: 857
Unique aggregates announced from the AfriNIC address blocks: 667
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: 2066432
Equivalent to 0 /8s, 31 /16s and 136 /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 859 4403 163 Data Communications Bureau
1221 795 1182 570 Telstra Pty Ltd
9583 552 47 40 Satyam Infoway Ltd.,
4766 545 3408 266 Korea Internet Exchange for "
4755 382 133 66 Videsh Sanchar Nigam Ltd. Aut
17676 376 5628 53 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 344 161 33 China Netcom Corp.
703 318 346 246 UUNET
17557 315 23 156 Pakistan Telecom
2764 287 273 233 connect.com.au pty ltd
7474 267 268 199 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
7563 230 48 167 Korea Internet Infrastructure
9800 230 380 70 CHINA UNICOM
9942 229 72 123 COMindico Australia
9498 225 81 52 BHARTI BT INTERNET LTD.
10036 217 20 198 C&M Communication Co. Ltd.
4814 210 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1424 6633 984 AT&T WorldNet Services
701 1237 8383 883 UUNET Technologies, Inc.
721 1027 21018 299 DLA Systems Automation Center
1239 926 2881 614 Sprint
2386 851 531 612 AT&T Data Communications Serv
6197 809 381 353 BellSouth Network Solutions,
4323 805 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
209 667 3429 511 Qwest
3356 661 10959 458 Level 3 Communications, LLC
20115 607 462 326 Charter Communications
3561 547 2375 418 Cable & Wireless USA
852 521 1141 398 Telus Advanced Communications
7843 481 726 77 Adelphia Corp.
27364 451 36 19 Armstrong Cable Services
7132 448 8289 380 SBC Internet Services
6198 439 377 202 BellSouth Network Solutions,
6478 435 775 96 AT&T Worldnet Services
5668 417 87 18 Century Telephone
22909 414 880 63 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 633 2026 523 UUNET - Commercial IP service
3320 302 2997 237 Deutsche Telekom AG
8220 280 463 265 COLT Internet - International
3301 278 1100 269 TeliaNet Sweden
3300 257 167 82 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
21502 246 40 3 NUMERICABLE is a cabled netwo
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 204 722 175 SWIPnet Swedish IP Network
8708 204 116 185 Romania Data Systems S.A.
5515 192 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 161 956 78 France Telecom Transpac
8866 160 20 7 Bulgarian Telecommunication C
719 157 322 105 LANLINK autonomous system
6746 156 30 127 Dynamic Network Technologies,
3269 151 1289 68 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
5400 142 206 115 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 75 ImpSat
8151 307 471 133 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 210 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 152 12 34 Keytech SA
7303 141 65 22 Telecom Argentina Stet-France
6505 140 90 94 Global One Communicaoes Ltda
6503 125 164 83 AVANTEL, S.A.
11992 103 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
6535 85 7 18 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
14420 81 5 33 ANDINATEL S.A.
4270 80 18 9 Red de Interconexion Universi
13999 78 52 9 Mega Cable S.A. de C.V.
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 268 636 225 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 99 276 72 The Internetworking Company o
20928 52 16 1 Noor Advanced Technologies AS
24835 39 34 7 RAYA Telecom - Egypt
9129 35 3 4 UUNET Kenya
6713 30 38 9 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
8452 18 20 5 TEDATA
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21280 16 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
8346 14 6 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 754 748 Covad Communications
721 1027 728 DLA Systems Automation Center
4134 859 696 Data Communications Bureau
4323 805 584 Time Warner Telecom
9583 552 512 Satyam Infoway Ltd.,
6197 809 456 BellSouth Network Solutions,
27364 451 432 Armstrong Cable Services
7843 481 404 Adelphia Corp.
5668 417 399 Century Telephone
22773 404 385 Cox Communications, Inc. Atla
701 1237 354 UUNET Technologies, Inc.
22909 414 351 Comcast Cable Corporation
6467 380 349 E.Spire Communications, Inc.
6478 435 339 AT&T Worldnet Services
17676 376 323 XTAGE CORPORATION
4755 382 316 Videsh Sanchar Nigam Ltd. Aut
1239 926 312 Sprint
9929 344 311 China Netcom Corp.
13609 333 298 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
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 212.115.225.0/24 8690 Comint Ltd
65002 PRIVATE 212.115.226.0/24 8690 Comint Ltd
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
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
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 /12:61
/13:140 /14:314 /15:556 /16:8140 /17:2279 /18:3958
/19:9872 /20:10435 /21:8035 /22:11091 /23:12706 /24:82611
/25:246 /26:224 /27:117 /28:70 /29:40 /30:118
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 656 809 BellSouth Network Solutions,
2386 614 851 AT&T Data Communications Serv
7018 580 1424 AT&T WorldNet Services
27364 436 451 Armstrong Cable Services
702 388 633 UUNET - Commercial IP service
9583 383 552 Satyam Infoway Ltd.,
1239 369 926 Sprint
4766 366 545 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 359 1237 UUNET Technologies, Inc.
6198 320 439 BellSouth Network Solutions,
13609 290 333 Choice One Communications Inc
6467 289 380 E.Spire Communications, Inc.
20115 286 607 Charter Communications
6517 278 301 Yipes Communications, Inc.
9929 275 344 China Netcom Corp.
11456 258 303 Carolina Online, Inc.
4323 257 805 Time Warner Telecom
3320 247 302 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 24:774 32:71 33:2 38:84
40:55 44:3 47:2 52:3 55:1 56:3
57:22 60:3 61:627 62:502 63:1865 64:2481
65:2071 66:2467 67:457 68:536 69:792 70:40
72:10 80:525 81:548 82:339 83:204 84:53
128:114 129:165 130:85 131:189 132:27 134:185
135:30 136:186 137:80 138:189 139:36 140:222
141:107 142:127 143:120 144:159 145:42 146:293
147:97 148:324 149:111 150:93 151:62 152:130
153:68 154:2 155:128 156:58 157:69 158:135
159:164 160:60 161:73 162:379 163:81 164:218
165:162 166:118 167:220 168:356 169:123 170:312
171:9 192:5665 193:2942 194:2157 195:1530 196:585
198:3908 199:3308 200:3839 201:25 202:4931 203:5787
204:3580 205:2094 206:2333 207:2627 208:2104 209:3105
210:1515 211:649 212:1148 213:1225 214:224 215:31
216:3703 217:1054 218:177 219:83 220:282 221:66
222:21
End of report
