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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 21 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151052
Prefixes after maximum aggregation: 88969
Unique aggregates announced to Internet: 72116
Total ASes present in the Internet Routing Table: 18466
Origin-only ASes present in the Internet Routing Table: 16007
Origin ASes announcing only one prefix: 7534
Transit ASes present in the Internet Routing Table: 2459
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: 19
Prefixes from unregistered ASNs in the Routing Table: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1354386296
Equivalent to 80 /8s, 186 /16s and 75 /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: 69558
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29314
Total APNIC prefixes after maximum aggregation: 14426
Prefixes being announced from the APNIC address blocks: 27377
Unique aggregates announced from the APNIC address blocks: 14210
APNIC Region origin ASes present in the Internet Routing Table: 2165
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 166940160
Equivalent to 9 /8s, 243 /16s and 78 /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: 85809
Total ARIN prefixes after maximum aggregation: 51971
Prefixes being announced from the ARIN address blocks: 65713
Unique aggregates announced from the ARIN address blocks: 23538
ARIN Region origin ASes present in the Internet Routing Table: 9724
ARIN Region origin ASes announcing only one prefix: 3518
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: 19
Number of ARIN addresses announced to Internet: 235558672
Equivalent to 14 /8s, 10 /16s and 87 /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: 28090
Total RIPE prefixes after maximum aggregation: 19518
Prefixes being announced from the RIPE address blocks: 24840
Unique aggregates announced from the RIPE address blocks: 16348
RIPE Region origin ASes present in the Internet Routing Table: 6012
RIPE Region origin ASes announcing only one prefix: 3228
RIPE Region transit ASes present in the Internet Routing Table: 1045
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 180323584
Equivalent to 10 /8s, 191 /16s and 133 /24s
Percentage of available RIPE address space announced: 63.2
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: 6586
Total LACNIC prefixes after maximum aggregation: 2359
Prefixes being announced from the LACNIC address blocks: 6459
Unique aggregates announced from the LACNIC address blocks: 3975
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: 16622592
Equivalent to 0 /8s, 253 /16s and 164 /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: 2067200
Equivalent to 0 /8s, 31 /16s and 139 /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 860 4403 163 Data Communications Bureau
1221 795 1182 570 Telstra Pty Ltd
9583 559 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 266 268 198 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 1025 21018 299 DLA Systems Automation Center
1239 928 2897 616 Sprint
2386 850 530 611 AT&T Data Communications Serv
6197 820 522 313 BellSouth Network Solutions,
4323 805 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
209 667 3429 511 Qwest
3356 665 10959 457 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 480 722 76 Adelphia Corp.
27364 451 36 19 Armstrong Cable Services
7132 448 8289 380 SBC Internet Services
6198 437 349 210 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 203 115 184 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 157 30 127 Dynamic Network Technologies,
3269 151 1289 68 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
5400 141 206 114 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 308 471 134 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 114 164 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 40 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 16 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 1025 726 DLA Systems Automation Center
4134 860 697 Data Communications Bureau
4323 805 584 Time Warner Telecom
9583 559 519 Satyam Infoway Ltd.,
6197 820 507 BellSouth Network Solutions,
27364 451 432 Armstrong Cable Services
7843 480 404 Adelphia Corp.
5668 417 399 Century Telephone
22773 403 385 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 928 312 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
65006 PRIVATE 84.18.32.0/19 33831 Royal Hashemite Cour
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 /16:8139 /17:2279 /18:3956
/19:9866 /20:10444 /21:8037 /22:11093 /23:12711 /24:82556
/25:245 /26:222 /27:117 /28:71 /29:40 /30:118
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 657 820 BellSouth Network Solutions,
2386 613 850 AT&T Data Communications Serv
7018 580 1424 AT&T WorldNet Services
27364 436 451 Armstrong Cable Services
9583 390 559 Satyam Infoway Ltd.,
702 388 633 UUNET - Commercial IP service
1239 369 928 Sprint
4766 366 545 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 359 1237 UUNET Technologies, Inc.
6198 320 437 BellSouth Network Solutions,
13609 290 333 Choice One Communications Inc
6467 289 380 E.Spire Communications, Inc.
20115 286 607 Charter Communications
6517 279 302 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 12:1428 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 61:630 62:501 63:1864 64:2479
65:2067 66:2454 67:457 68:536 69:794 70:40
72:10 80:517 81:550 82:335 83:206 84:50
128:115 129:165 130:85 131:189 132:27 134:185
135:30 136:186 137:80 138:189 139:36 140:223
141:107 142:127 143:120 144:159 145:42 146:293
147:97 148:319 149:111 150:93 151:62 152:130
153:68 154:2 155:131 156:58 157:69 158:134
159:163 160:61 161:73 162:379 163:82 164:219
165:162 166:118 167:220 168:357 169:123 170:312
171:9 192:5666 193:2922 194:2151 195:1534 196:584
198:3909 199:3301 200:3840 201:25 202:4934 203:5792
204:3580 205:2084 206:2331 207:2626 208:2108 209:3104
210:1521 211:651 212:1155 213:1221 214:223 215:31
216:3701 217:1050 218:177 219:83 220:283 221:66
222:21
End of report
