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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 18 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 150930
Prefixes after maximum aggregation: 88909
Unique aggregates announced to Internet: 72072
Total ASes present in the Internet Routing Table: 18460
Origin-only ASes present in the Internet Routing Table: 16026
Origin ASes announcing only one prefix: 7534
Transit ASes present in the Internet Routing Table: 2434
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: 18
Prefixes from unregistered ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1353151608
Equivalent to 80 /8s, 167 /16s and 116 /24s
Percentage of available address space announced: 36.5
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69568
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29283
Total APNIC prefixes after maximum aggregation: 14392
Prefixes being announced from the APNIC address blocks: 27376
Unique aggregates announced from the APNIC address blocks: 14216
APNIC Region origin ASes present in the Internet Routing Table: 2169
APNIC Region origin ASes announcing only one prefix: 657
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 166596608
Equivalent to 9 /8s, 238 /16s and 16 /24s
Percentage of available APNIC address space announced: 76.0
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: 85696
Total ARIN prefixes after maximum aggregation: 51919
Prefixes being announced from the ARIN address blocks: 65567
Unique aggregates announced from the ARIN address blocks: 23500
ARIN Region origin ASes present in the Internet Routing Table: 9718
ARIN Region origin ASes announcing only one prefix: 3515
ARIN Region transit ASes present in the Internet Routing Table: 947
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235221520
Equivalent to 14 /8s, 5 /16s and 50 /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: 28082
Total RIPE prefixes after maximum aggregation: 19536
Prefixes being announced from the RIPE address blocks: 24847
Unique aggregates announced from the RIPE address blocks: 16324
RIPE Region origin ASes present in the Internet Routing Table: 6009
RIPE Region origin ASes announcing only one prefix: 3223
RIPE Region transit ASes present in the Internet Routing Table: 1036
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 179639040
Equivalent to 10 /8s, 181 /16s and 19 /24s
Percentage of available RIPE address space announced: 63.0
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: 6593
Total LACNIC prefixes after maximum aggregation: 2355
Prefixes being announced from the LACNIC address blocks: 6452
Unique aggregates announced from the LACNIC address blocks: 3980
LACNIC Region origin ASes present in the Internet Routing Table: 403
LACNIC Region origin ASes announcing only one prefix: 118
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: 16621312
Equivalent to 0 /8s, 253 /16s and 159 /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: 1268
Total AfriNIC prefixes after maximum aggregation: 707
Prefixes being announced from the AfriNIC address blocks: 867
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: 16
Number of AfriNIC addresses announced to Internet: 2068736
Equivalent to 0 /8s, 31 /16s and 145 /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 4409 164 Data Communications Bureau
1221 796 1182 571 Telstra Pty Ltd
9583 560 47 43 Satyam Infoway Ltd.,
4766 544 3408 266 Korea Internet Exchange for "
4755 380 133 63 Videsh Sanchar Nigam Ltd. Aut
17676 376 5628 53 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 354 69 80 Primus Telecommunications
9929 344 161 33 China Netcom Corp.
703 316 346 244 UUNET
17557 315 23 156 Pakistan Telecom
2764 289 273 235 connect.com.au pty ltd
7474 265 268 197 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9800 230 380 70 CHINA UNICOM
7563 229 48 166 Korea Internet Infrastructure
9942 229 72 123 COMindico Australia
9498 218 81 52 BHARTI BT INTERNET LTD.
10036 216 20 197 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 986 AT&T WorldNet Services
701 1232 8415 884 UUNET Technologies, Inc.
721 1023 21016 299 DLA Systems Automation Center
1239 924 2880 612 Sprint
2386 850 530 610 AT&T Data Communications Serv
6197 820 522 313 BellSouth Network Solutions,
4323 798 671 218 Time Warner Telecom
18566 753 208 6 Covad Communications
209 669 3429 514 Qwest
3356 638 10959 459 Level 3 Communications, LLC
20115 602 461 323 Charter Communications
3561 549 2374 420 Cable & Wireless USA
852 520 1142 399 Telus Advanced Communications
7843 492 717 79 Adelphia Corp.
7132 445 8287 377 SBC Internet Services
6198 437 349 210 BellSouth Network Solutions,
27364 434 36 19 Armstrong Cable Services
6478 429 742 97 AT&T Worldnet Services
5668 415 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 299 2996 235 Deutsche Telekom AG
8220 280 463 266 COLT Internet - International
3301 278 1100 269 TeliaNet Sweden
3300 255 167 81 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
21502 244 40 3 NUMERICABLE is a cabled netwo
3246 219 477 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 204 116 185 Romania Data Systems S.A.
1257 203 726 174 SWIPnet Swedish IP Network
5515 192 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 160 940 77 France Telecom Transpac
6746 160 30 130 Dynamic Network Technologies,
8866 159 20 7 Bulgarian Telecommunication C
719 157 322 105 LANLINK autonomous system
3269 151 1289 68 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
5400 143 206 116 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 140 72 ImpSat
8151 307 470 133 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 207 99 54 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 156 12 34 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 102 9 29 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
13999 71 52 9 Mega Cable S.A. de C.V.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 654 233 The Internet Solution
5536 127 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 100 260 74 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
21280 16 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
12455 15 4 2 Jambonet 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 753 747 Covad Communications
721 1023 724 DLA Systems Automation Center
4134 860 696 Data Communications Bureau
4323 798 580 Time Warner Telecom
9583 560 517 Satyam Infoway Ltd.,
6197 820 507 BellSouth Network Solutions,
27364 434 415 Armstrong Cable Services
7843 492 413 Adelphia Corp.
5668 415 397 Century Telephone
22773 402 385 Cox Communications, Inc. Atla
6467 406 375 E.Spire Communications, Inc.
22909 414 351 Comcast Cable Corporation
701 1232 348 UUNET Technologies, Inc.
6478 429 332 AT&T Worldnet Services
17676 376 323 XTAGE CORPORATION
4755 380 317 Videsh Sanchar Nigam Ltd. Aut
1239 924 312 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
65333 PRIVATE 65.77.220.0/24 31985 KCNAP
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.
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
/13:139 /14:314 /15:554 /16:8128 /17:2281 /18:3950
/19:9833 /20:10433 /21:8017 /22:11076 /23:12704 /24:82511
/25:246 /26:223 /27:119 /28:72 /29:56 /30:127
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 738 753 Covad Communications
6197 657 820 BellSouth Network Solutions,
2386 614 850 AT&T Data Communications Serv
7018 579 1424 AT&T WorldNet Services
27364 419 434 Armstrong Cable Services
9583 392 560 Satyam Infoway Ltd.,
702 387 633 UUNET - Commercial IP service
1239 367 924 Sprint
4766 365 544 Korea Internet Exchange for "
5668 358 415 Century Telephone
701 348 1232 UUNET Technologies, Inc.
6198 320 437 BellSouth Network Solutions,
6467 305 406 E.Spire Communications, Inc.
13609 290 333 Choice One Communications Inc
6517 284 307 Yipes Communications, Inc.
20115 283 602 Charter Communications
9929 275 344 China Netcom Corp.
11456 258 303 Carolina Online, Inc.
4323 255 798 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1432 13:1 15:5 16:2
17:3 20:5 24:760 32:71 33:2 38:83
40:55 44:3 47:2 52:3 55:1 56:3
57:21 60:3 61:631 62:516 63:1852 64:2478
65:2075 66:2462 67:456 68:538 69:788 70:38
72:2 80:529 81:536 82:319 83:204 84:48
128:125 129:165 130:85 131:181 132:27 133:1
134:186 135:30 136:187 137:81 138:186 139:36
140:228 141:108 142:126 143:120 144:158 145:42
146:293 147:97 148:327 149:112 150:93 151:62
152:133 153:68 154:2 155:131 156:58 157:70
158:135 159:164 160:61 161:73 162:379 163:80
164:218 165:162 166:118 167:221 168:357 169:123
170:311 171:9 192:5667 193:2943 194:2162 195:1535
196:590 198:3911 199:3306 200:3839 201:25 202:4928
203:5785 204:3556 205:2065 206:2328 207:2626 208:2112
209:3093 210:1520 211:652 212:1151 213:1218 214:224
215:31 216:3697 217:1045 218:176 219:82 220:285
221:67 222:21
End of report
