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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 14 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150738
Prefixes after maximum aggregation: 88835
Unique aggregates announced to Internet: 71986
Total ASes present in the Internet Routing Table: 18437
Origin-only ASes present in the Internet Routing Table: 16018
Origin ASes announcing only one prefix: 7519
Transit ASes present in the Internet Routing Table: 2419
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1351784824
Equivalent to 80 /8s, 146 /16s and 153 /24s
Percentage of available address space announced: 36.5
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69449
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29214
Total APNIC prefixes after maximum aggregation: 14381
Prefixes being announced from the APNIC address blocks: 27322
Unique aggregates announced from the APNIC address blocks: 14186
APNIC Region origin ASes present in the Internet Routing Table: 2162
APNIC Region origin ASes announcing only one prefix: 651
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: 166394496
Equivalent to 9 /8s, 234 /16s and 250 /24s
Percentage of available APNIC address space announced: 75.9
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: 85650
Total ARIN prefixes after maximum aggregation: 51891
Prefixes being announced from the ARIN address blocks: 65552
Unique aggregates announced from the ARIN address blocks: 23512
ARIN Region origin ASes present in the Internet Routing Table: 9707
ARIN Region origin ASes announcing only one prefix: 3509
ARIN Region transit ASes present in the Internet Routing Table: 938
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 235141648
Equivalent to 14 /8s, 3 /16s and 250 /24s
Percentage of available ARIN address space announced: 70.1
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: 28030
Total RIPE prefixes after maximum aggregation: 19505
Prefixes being announced from the RIPE address blocks: 24776
Unique aggregates announced from the RIPE address blocks: 16303
RIPE Region origin ASes present in the Internet Routing Table: 6000
RIPE Region origin ASes announcing only one prefix: 3221
RIPE Region transit ASes present in the Internet Routing Table: 1030
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 178784128
Equivalent to 10 /8s, 168 /16s and 7 /24s
Percentage of available RIPE address space announced: 62.7
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: 6584
Total LACNIC prefixes after maximum aggregation: 2355
Prefixes being announced from the LACNIC address blocks: 6423
Unique aggregates announced from the LACNIC address blocks: 3960
LACNIC Region origin ASes present in the Internet Routing Table: 402
LACNIC Region origin ASes announcing only one prefix: 117
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: 18
Number of LACNIC addresses announced to Internet: 16518400
Equivalent to 0 /8s, 252 /16s and 13 /24s
Percentage of available LACNIC address space announced: 49.2
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1255
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 874
Unique aggregates announced from the AfriNIC address blocks: 669
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: 4.4
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2068992
Equivalent to 0 /8s, 31 /16s and 146 /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 798 1183 572 Telstra Pty Ltd
9583 555 43 42 Satyam Infoway Ltd.,
4766 546 3408 268 Korea Internet Exchange for "
4755 376 133 61 Videsh Sanchar Nigam Ltd. Aut
17676 374 5596 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 354 69 80 Primus Telecommunications
9929 340 161 33 China Netcom Corp.
703 316 346 244 UUNET
17557 315 23 156 Pakistan Telecom
2764 288 273 235 connect.com.au pty ltd
7474 266 268 197 Optus Communications Pty Ltd
4802 233 28 141 Wantree Development
9800 230 380 70 CHINA UNICOM
9942 230 72 123 COMindico Australia
7563 228 48 165 Korea Internet Infrastructure
9498 220 81 52 BHARTI BT INTERNET LTD.
10036 216 20 197 C&M Communication Co. Ltd.
4814 208 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1420 6633 984 AT&T WorldNet Services
701 1247 8418 892 UUNET Technologies, Inc.
721 1016 21016 298 DLA Systems Automation Center
1239 925 2880 613 Sprint
2386 848 530 610 AT&T Data Communications Serv
6197 819 514 311 BellSouth Network Solutions,
4323 797 671 218 Time Warner Telecom
18566 752 208 6 Covad Communications
209 660 3429 507 Qwest
3356 625 10943 449 Level 3 Communications, LLC
20115 602 461 323 Charter Communications
3561 556 2374 420 Cable & Wireless USA
852 522 1142 400 Telus Advanced Communications
7843 499 715 88 Adelphia Corp.
7132 447 8288 379 SBC Internet Services
6198 437 349 210 BellSouth Network Solutions,
6478 427 738 99 AT&T Worldnet Services
5668 414 87 18 Century Telephone
27364 413 36 19 Armstrong Cable Services
22909 412 863 61 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2026 523 UUNET - Commercial IP service
3320 292 2992 234 Deutsche Telekom AG
8220 280 463 266 COLT Internet - International
3301 276 1099 267 TeliaNet Sweden
3300 256 167 81 AUCS Communications Services
21502 253 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 203 726 174 SWIPnet Swedish IP Network
8708 202 115 184 Romania Data Systems S.A.
5515 192 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 130 Dynamic Network Technologies,
3215 159 940 77 France Telecom Transpac
8866 159 20 7 Bulgarian Telecommunication C
719 156 322 105 LANLINK autonomous system
3269 150 1259 68 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
5400 146 206 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 348 139 70 ImpSat
8151 307 455 132 UniNet S.A. de C.V.
11172 212 100 55 Servicios Alestra S.A de C.V
16814 211 13 7 NSS, S.A.
6147 190 94 20 Telefonica Del Peru
11664 157 12 32 Keytech SA
6505 141 90 95 Global One Communicaoes Ltda
7303 141 65 22 Telecom Argentina Stet-France
6503 123 148 82 AVANTEL, S.A.
11992 101 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
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
2905 116 260 74 The Internetworking Company o
5536 109 16 4 Internet Egypt Network
2018 101 297 97 Tertiary Education Network
20928 52 16 1 Noor Advanced Technologies AS
24835 40 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 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
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
12455 14 4 2 Jambonet 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 752 746 Covad Communications
721 1016 718 DLA Systems Automation Center
4134 856 693 Data Communications Bureau
4323 797 579 Time Warner Telecom
9583 555 513 Satyam Infoway Ltd.,
6197 819 508 BellSouth Network Solutions,
7843 499 411 Adelphia Corp.
5668 414 396 Century Telephone
27364 413 394 Armstrong Cable Services
22773 401 384 Cox Communications, Inc. Atla
6467 405 375 E.Spire Communications, Inc.
701 1247 355 UUNET Technologies, Inc.
22909 412 351 Comcast Cable Corporation
6478 427 328 AT&T Worldnet Services
17676 374 320 XTAGE CORPORATION
4755 376 315 Videsh Sanchar Nigam Ltd. Aut
1239 925 312 Sprint
9929 340 307 China Netcom Corp.
4355 392 293 EarthLink, Inc.
20115 602 279 Charter Communications
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
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
/13:138 /14:314 /15:554 /16:8116 /17:2274 /18:3939
/19:9821 /20:10414 /21:7999 /22:11069 /23:12703 /24:82396
/25:252 /26:237 /27:130 /28:69 /29:54 /30:118
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 737 752 Covad Communications
6197 657 819 BellSouth Network Solutions,
2386 613 848 AT&T Data Communications Serv
7018 576 1420 AT&T WorldNet Services
27364 398 413 Armstrong Cable Services
9583 390 555 Satyam Infoway Ltd.,
702 385 631 UUNET - Commercial IP service
1239 367 925 Sprint
4766 366 546 Korea Internet Exchange for "
5668 358 414 Century Telephone
701 352 1247 UUNET Technologies, Inc.
6198 320 437 BellSouth Network Solutions,
6467 305 405 E.Spire Communications, Inc.
20115 283 602 Charter Communications
6517 282 305 Yipes Communications, Inc.
9929 271 340 China Netcom Corp.
13609 267 310 Choice One Communications Inc
11456 256 301 Carolina Online, Inc.
4323 255 797 Time Warner Telecom
21502 250 253 NUMERICABLE is a cabled netwo
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1431 13:1 15:5 16:2
17:3 20:5 24:746 32:69 33:2 38:83
40:55 44:3 47:2 52:3 55:1 56:3
57:21 60:3 61:626 62:500 63:1858 64:2477
65:2064 66:2464 67:454 68:533 69:776 70:40
72:2 80:533 81:533 82:314 83:203 84:47
128:128 129:165 130:85 131:182 132:25 134:185
135:28 136:187 137:81 138:185 139:36 140:227
141:108 142:126 143:115 144:159 145:42 146:296
147:96 148:327 149:112 150:93 151:62 152:133
153:68 154:2 155:131 156:58 157:71 158:132
159:164 160:61 161:73 162:380 163:80 164:216
165:162 166:116 167:221 168:357 169:123 170:312
171:9 192:5654 193:2928 194:2167 195:1531 196:601
198:3915 199:3304 200:3839 201:23 202:4933 203:5773
204:3554 205:2061 206:2338 207:2620 208:2114 209:3091
210:1515 211:652 212:1148 213:1217 214:225 215:31
216:3696 217:1044 218:176 219:82 220:281 221:65
222:22
End of report
