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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 19 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151046
Prefixes after maximum aggregation: 88975
Unique aggregates announced to Internet: 72112
Total ASes present in the Internet Routing Table: 18465
Origin-only ASes present in the Internet Routing Table: 16024
Origin ASes announcing only one prefix: 7526
Transit ASes present in the Internet Routing Table: 2441
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: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1353501817
Equivalent to 80 /8s, 172 /16s and 204 /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: 69634
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29318
Total APNIC prefixes after maximum aggregation: 14412
Prefixes being announced from the APNIC address blocks: 27402
Unique aggregates announced from the APNIC address blocks: 14205
APNIC Region origin ASes present in the Internet Routing Table: 2166
APNIC Region origin ASes announcing only one prefix: 654
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: 16
Number of APNIC addresses announced to Internet: 166597376
Equivalent to 9 /8s, 238 /16s and 19 /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: 85769
Total ARIN prefixes after maximum aggregation: 51961
Prefixes being announced from the ARIN address blocks: 65627
Unique aggregates announced from the ARIN address blocks: 23515
ARIN Region origin ASes present in the Internet Routing Table: 9720
ARIN Region origin ASes announcing only one prefix: 3506
ARIN Region transit ASes present in the Internet Routing Table: 951
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235440144
Equivalent to 14 /8s, 8 /16s and 136 /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: 28121
Total RIPE prefixes after maximum aggregation: 19551
Prefixes being announced from the RIPE address blocks: 24874
Unique aggregates announced from the RIPE address blocks: 16369
RIPE Region origin ASes present in the Internet Routing Table: 6014
RIPE Region origin ASes announcing only one prefix: 3227
RIPE Region transit ASes present in the Internet Routing Table: 1033
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 179829248
Equivalent to 10 /8s, 183 /16s and 250 /24s
Percentage of available RIPE address space announced: 63.1
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: 2354
Prefixes being announced from the LACNIC address blocks: 6448
Unique aggregates announced from the LACNIC address blocks: 3970
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: 16621056
Equivalent to 0 /8s, 253 /16s and 158 /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: 1247
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 858
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 798 1183 573 Telstra Pty Ltd
9583 562 47 43 Satyam Infoway Ltd.,
4766 545 3408 266 Korea Internet Exchange for "
4755 381 133 64 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.
703 317 346 245 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 233 28 141 Wantree Development
9800 230 380 70 CHINA UNICOM
9942 229 72 123 COMindico Australia
7563 228 48 166 Korea Internet Infrastructure
9498 219 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 1425 6634 985 AT&T WorldNet Services
701 1231 8415 883 UUNET Technologies, Inc.
721 1023 21016 298 DLA Systems Automation Center
1239 925 2881 613 Sprint
2386 849 530 611 AT&T Data Communications Serv
6197 819 522 313 BellSouth Network Solutions,
4323 804 672 221 Time Warner Telecom
18566 753 208 6 Covad Communications
209 669 3429 514 Qwest
3356 634 10959 458 Level 3 Communications, LLC
20115 603 462 322 Charter Communications
3561 547 2374 418 Cable & Wireless USA
852 517 1141 397 Telus Advanced Communications
7843 491 716 79 Adelphia Corp.
27364 450 36 19 Armstrong Cable Services
7132 447 8288 379 SBC Internet Services
6198 437 349 210 BellSouth Network Solutions,
6478 433 758 98 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 257 167 82 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 350 139 75 ImpSat
8151 309 471 134 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 191 94 20 Telefonica Del Peru
11664 150 12 33 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 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
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
13999 74 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 268 636 225 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 100 276 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
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 753 747 Covad Communications
721 1023 725 DLA Systems Automation Center
4134 860 697 Data Communications Bureau
4323 804 583 Time Warner Telecom
9583 562 519 Satyam Infoway Ltd.,
6197 819 506 BellSouth Network Solutions,
27364 450 431 Armstrong Cable Services
7843 491 412 Adelphia Corp.
5668 415 397 Century Telephone
22773 402 385 Cox Communications, Inc. Atla
22909 414 351 Comcast Cable Corporation
701 1231 348 UUNET Technologies, Inc.
6467 378 347 E.Spire Communications, Inc.
6478 433 335 AT&T Worldnet Services
17676 376 323 XTAGE CORPORATION
4755 381 317 Videsh Sanchar Nigam Ltd. Aut
1239 925 312 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
33295 UNALLOCATED 147.135.12.0/22 1784 Global NAPs Networks
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 /16:8134 /17:2278 /18:3955
/19:9862 /20:10440 /21:8027 /22:11093 /23:12706 /24:82549
/25:247 /26:225 /27:120 /28:72 /29:56 /30:126
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 738 753 Covad Communications
6197 656 819 BellSouth Network Solutions,
2386 613 849 AT&T Data Communications Serv
7018 580 1425 AT&T WorldNet Services
27364 435 450 Armstrong Cable Services
9583 394 562 Satyam Infoway Ltd.,
702 387 633 UUNET - Commercial IP service
1239 368 925 Sprint
4766 366 545 Korea Internet Exchange for "
5668 358 415 Century Telephone
701 347 1231 UUNET Technologies, Inc.
6198 320 437 BellSouth Network Solutions,
13609 290 333 Choice One Communications Inc
6467 287 378 E.Spire Communications, Inc.
6517 283 306 Yipes Communications, Inc.
20115 283 603 Charter Communications
9929 275 344 China Netcom Corp.
11456 258 303 Carolina Online, Inc.
4323 257 804 Time Warner Telecom
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1431 13:1 15:5 16:2
17:3 20:5 24:776 32:71 33:2 38:84
40:55 44:3 47:2 52:3 55:1 56:3
57:21 60:3 61:628 62:501 63:1853 64:2477
65:2073 66:2455 67:457 68:539 69:790 70:40
72:2 80:526 81:555 82:319 83:206 84:48
128:124 129:164 130:85 131:192 132:24 134:186
135:30 136:186 137:81 138:186 139:36 140:225
141:107 142:127 143:120 144:158 145:42 146:287
147:99 148:328 149:111 150:93 151:62 152:133
153:68 154:2 155:131 156:58 157:70 158:135
159:164 160:61 161:73 162:379 163:84 164:217
165:162 166:118 167:221 168:357 169:123 170:311
171:9 192:5668 193:2946 194:2165 195:1533 196:584
198:3916 199:3309 200:3834 201:25 202:4931 203:5780
204:3559 205:2070 206:2327 207:2625 208:2111 209:3099
210:1524 211:656 212:1157 213:1221 214:224 215:31
216:3697 217:1040 218:177 219:82 220:286 221:67
222:21
End of report
