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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 07 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150205
Prefixes after maximum aggregation: 88631
Unique aggregates announced to Internet: 71003
Total ASes present in the Internet Routing Table: 18374
Origin-only ASes present in the Internet Routing Table: 15949
Origin ASes announcing only one prefix: 7471
Transit ASes present in the Internet Routing Table: 2425
Transit-only ASes present in the Internet Routing Table: 74
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: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1348005260
Equivalent to 80 /8s, 88 /16s and 237 /24s
Percentage of available address space announced: 36.4
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69062
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29033
Total APNIC prefixes after maximum aggregation: 14311
Prefixes being announced from the APNIC address blocks: 27182
Unique aggregates announced from the APNIC address blocks: 14118
APNIC Region origin ASes present in the Internet Routing Table: 2154
APNIC Region origin ASes announcing only one prefix: 645
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165910912
Equivalent to 9 /8s, 227 /16s and 153 /24s
Percentage of available APNIC address space announced: 75.7
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: 85551
Total ARIN prefixes after maximum aggregation: 51834
Prefixes being announced from the ARIN address blocks: 65418
Unique aggregates announced from the ARIN address blocks: 23367
ARIN Region origin ASes present in the Internet Routing Table: 9677
ARIN Region origin ASes announcing only one prefix: 3484
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234649088
Equivalent to 13 /8s, 252 /16s and 118 /24s
Percentage of available ARIN address space announced: 69.9
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: 27831
Total RIPE prefixes after maximum aggregation: 19439
Prefixes being announced from the RIPE address blocks: 24715
Unique aggregates announced from the RIPE address blocks: 15623
RIPE Region origin ASes present in the Internet Routing Table: 5979
RIPE Region origin ASes announcing only one prefix: 3207
RIPE Region transit ASes present in the Internet Routing Table: 1021
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 176539520
Equivalent to 10 /8s, 133 /16s and 199 /24s
Percentage of available RIPE address space announced: 61.9
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: 6546
Total LACNIC prefixes after maximum aggregation: 2355
Prefixes being announced from the LACNIC address blocks: 6392
Unique aggregates announced from the LACNIC address blocks: 3938
LACNIC Region origin ASes present in the Internet Routing Table: 401
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 16420864
Equivalent to 0 /8s, 250 /16s and 144 /24s
Percentage of available LACNIC address space announced: 48.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1238
Total AfriNIC prefixes after maximum aggregation: 692
Prefixes being announced from the AfriNIC address blocks: 857
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 92
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: 4.4
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069248
Equivalent to 0 /8s, 31 /16s and 147 /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 799 1183 573 Telstra Pty Ltd
9583 549 43 42 Satyam Infoway Ltd.,
4766 545 3408 268 Korea Internet Exchange for "
4755 376 133 58 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
703 316 344 243 UUNET
17557 316 23 156 Pakistan Telecom
2764 288 273 235 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9942 233 72 124 COMindico Australia
9498 230 81 53 BHARTI BT INTERNET LTD.
9800 230 380 70 CHINA UNICOM
7563 227 48 164 Korea Internet Infrastructure
10036 210 19 191 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 1427 6665 994 AT&T WorldNet Services
701 1231 8415 881 UUNET Technologies, Inc.
721 1014 21016 298 DLA Systems Automation Center
1239 918 2880 607 Sprint
2386 846 530 608 AT&T Data Communications Serv
6197 807 380 351 BellSouth Network Solutions,
4323 797 671 218 Time Warner Telecom
18566 752 208 6 Covad Communications
209 660 3435 504 Qwest
3356 646 10942 444 Level 3 Communications, LLC
20115 570 430 306 Charter Communications
3561 558 2416 422 Cable & Wireless USA
852 518 1142 401 Telus Advanced Communications
7843 497 711 94 Adelphia Corp.
7132 445 8288 377 SBC Internet Services
6198 438 377 202 BellSouth Network Solutions,
705 435 163 275 UUNET Technologies, Inc.
6478 426 738 98 AT&T Worldnet Services
27364 414 36 19 Armstrong Cable Services
5668 411 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2026 526 UUNET - Commercial IP service
3320 297 2484 234 Deutsche Telekom AG
8220 281 463 267 COLT Internet - International
3301 277 1099 267 TeliaNet Sweden
21502 254 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 208 743 179 SWIPnet Swedish IP Network
8708 203 115 184 Romania Data Systems S.A.
5515 193 842 141 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 160 20 7 Bulgarian Telecommunication C
6746 159 30 128 Dynamic Network Technologies,
3215 158 940 77 France Telecom Transpac
719 157 288 102 LANLINK autonomous system
3269 149 1259 67 TELECOM ITALIA
5400 148 207 119 BT Ignite European Backbone
25186 148 154 104 France Telecom Transpac's Tra
3303 131 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 139 69 ImpSat
8151 309 471 134 UniNet S.A. de C.V.
16814 213 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 186 94 20 Telefonica Del Peru
11664 164 12 35 Keytech SA
6505 139 90 94 Global One Communicaoes Ltda
7303 137 62 24 Telecom Argentina Stet-France
6503 122 148 82 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
11311 86 8 23 Sinectis S.A.
6535 84 7 19 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
11340 71 21 47 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 649 230 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
2905 93 259 65 The Internetworking Company o
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
8452 17 20 5 TEDATA
12455 17 4 2 Jambonet Autonomous system
21280 16 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
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 752 746 Covad Communications
721 1014 716 DLA Systems Automation Center
4134 856 693 Data Communications Bureau
4323 797 579 Time Warner Telecom
9583 549 507 Satyam Infoway Ltd.,
6197 807 456 BellSouth Network Solutions,
7843 497 403 Adelphia Corp.
27364 414 395 Armstrong Cable Services
5668 411 393 Century Telephone
22773 399 382 Cox Communications, Inc. Atla
6467 400 370 E.Spire Communications, Inc.
22909 409 351 Comcast Cable Corporation
701 1231 350 UUNET Technologies, Inc.
6478 426 328 AT&T Worldnet Services
4755 376 318 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 918 311 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
6140 347 278 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
5555 UNALLOCATED 192.156.8.0/24 721 DLA Systems Automati
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 /8:20 /9:3 /10:6 /11:15 /12:61
/13:137 /14:314 /15:554 /16:8098 /17:2263 /18:3922
/19:9789 /20:10375 /21:7982 /22:11019 /23:12683 /24:82141
/25:249 /26:237 /27:134 /28:56 /29:35 /30:82
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 737 752 Covad Communications
6197 655 807 BellSouth Network Solutions,
2386 612 846 AT&T Data Communications Serv
7018 578 1427 AT&T WorldNet Services
27364 398 414 Armstrong Cable Services
702 388 634 UUNET - Commercial IP service
9583 384 549 Satyam Infoway Ltd.,
4766 365 545 Korea Internet Exchange for "
1239 363 918 Sprint
5668 356 411 Century Telephone
701 343 1231 UUNET Technologies, Inc.
6198 319 438 BellSouth Network Solutions,
6467 300 400 E.Spire Communications, Inc.
6517 281 305 Yipes Communications, Inc.
20115 279 570 Charter Communications
9929 275 344 China Netcom Corp.
13609 266 309 Choice One Communications Inc
14824 259 269 NewSouth Communications Corp.
4323 256 797 Time Warner Telecom
21502 251 254 NUMERICABLE is a cabled netwo
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1430 13:1 15:5 16:2
17:3 20:5 24:747 32:67 33:2 38:81
40:54 44:3 47:2 52:3 55:1 56:3
57:22 60:3 61:612 62:503 63:1846 64:2446
65:2071 66:2465 67:448 68:538 69:758 70:36
72:2 80:516 81:548 82:305 83:195 84:47
128:130 129:164 130:83 131:180 132:25 134:186
135:26 136:187 137:84 138:180 139:33 140:195
141:108 142:126 143:115 144:159 145:42 146:296
147:94 148:329 149:112 150:95 151:64 152:133
153:68 154:2 155:131 156:58 157:67 158:133
159:163 160:61 161:73 162:380 163:79 164:216
165:157 166:119 167:222 168:341 169:123 170:298
171:9 192:5657 193:2919 194:2165 195:1516 196:587
198:3895 199:3304 200:3817 201:23 202:4946 203:5746
204:3568 205:2084 206:2336 207:2620 208:2123 209:3082
210:1519 211:648 212:1133 213:1221 214:216 215:31
216:3679 217:1058 218:176 219:81 220:273 221:65
222:22
End of report
