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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 01 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151597
Prefixes after maximum aggregation: 89358
Unique aggregates announced to Internet: 72583
Total ASes present in the Internet Routing Table: 18547
Origin-only ASes present in the Internet Routing Table: 16089
Origin ASes announcing only one prefix: 7564
Transit ASes present in the Internet Routing Table: 2458
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: 17
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1357105000
Equivalent to 80 /8s, 227 /16s and 199 /24s
Percentage of available address space announced: 36.6
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70038
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29387
Total APNIC prefixes after maximum aggregation: 14509
Prefixes being announced from the APNIC address blocks: 27438
Unique aggregates announced from the APNIC address blocks: 14346
APNIC Region origin ASes present in the Internet Routing Table: 2164
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 167908352
Equivalent to 10 /8s, 2 /16s and 20 /24s
Percentage of available APNIC address space announced: 76.6
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: 85892
Total ARIN prefixes after maximum aggregation: 52056
Prefixes being announced from the ARIN address blocks: 65709
Unique aggregates announced from the ARIN address blocks: 23604
ARIN Region origin ASes present in the Internet Routing Table: 9742
ARIN Region origin ASes announcing only one prefix: 3525
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235874048
Equivalent to 14 /8s, 15 /16s and 39 /24s
Percentage of available ARIN address space announced: 70.3
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: 28459
Total RIPE prefixes after maximum aggregation: 19726
Prefixes being announced from the RIPE address blocks: 25223
Unique aggregates announced from the RIPE address blocks: 16566
RIPE Region origin ASes present in the Internet Routing Table: 6075
RIPE Region origin ASes announcing only one prefix: 3251
RIPE Region transit ASes present in the Internet Routing Table: 1041
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181278976
Equivalent to 10 /8s, 206 /16s and 25 /24s
Percentage of available RIPE address space announced: 63.6
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: 6588
Total LACNIC prefixes after maximum aggregation: 2367
Prefixes being announced from the LACNIC address blocks: 6473
Unique aggregates announced from the LACNIC address blocks: 3994
LACNIC Region origin ASes present in the Internet Routing Table: 404
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: 16750592
Equivalent to 0 /8s, 255 /16s and 152 /24s
Percentage of available LACNIC address space announced: 49.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1253
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 861
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 93
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: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2088704
Equivalent to 0 /8s, 31 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 12.4
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 861 4389 163 Data Communications Bureau
1221 791 1182 568 Telstra Pty Ltd
9583 553 47 40 Satyam Infoway Ltd.,
4766 547 3408 268 Korea Internet Exchange for "
4755 396 134 70 Videsh Sanchar Nigam Ltd. Aut
17676 387 5804 57 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 349 162 34 China Netcom Corp.
703 322 350 247 UUNET
17557 319 23 157 Pakistan Telecom
2764 284 272 232 connect.com.au pty ltd
7474 272 268 203 Optus Communications Pty Ltd
4802 233 28 141 Wantree Development
9800 232 381 71 CHINA UNICOM
9498 230 81 53 BHARTI BT INTERNET LTD.
7563 227 48 164 Korea Internet Infrastructure
10036 217 20 198 C&M Communication Co. Ltd.
9942 212 72 121 COMindico Australia
4814 210 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1418 6632 984 AT&T WorldNet Services
701 1238 8384 884 UUNET Technologies, Inc.
721 1040 21084 305 DLA Systems Automation Center
1239 935 2880 609 Sprint
2386 851 531 612 AT&T Data Communications Serv
6197 811 381 352 BellSouth Network Solutions,
4323 810 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
209 654 3427 507 Qwest
3356 637 10961 462 Level 3 Communications, LLC
20115 592 461 316 Charter Communications
3561 548 2376 416 Cable & Wireless USA
852 519 1142 402 Telus Advanced Communications
7843 477 724 89 Adelphia Corp.
7132 452 8290 384 SBC Internet Services
27364 446 36 19 Armstrong Cable Services
6198 440 378 204 BellSouth Network Solutions,
6478 440 776 100 AT&T Worldnet Services
5668 417 87 18 Century Telephone
22909 415 881 59 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2027 524 UUNET - Commercial IP service
3320 303 2997 237 Deutsche Telekom AG
8220 280 464 265 COLT Internet - International
3301 279 1100 270 TeliaNet Sweden
21502 273 40 3 NUMERICABLE is a cabled netwo
3300 256 167 82 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
3246 227 479 218 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 722 175 SWIPnet Swedish IP Network
8708 202 116 186 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 163 972 78 France Telecom Transpac
8866 161 20 7 Bulgarian Telecommunication C
719 158 322 105 LANLINK autonomous system
6746 158 46 128 Dynamic Network Technologies,
3269 153 1297 69 TELECOM ITALIA
25186 146 154 102 France Telecom Transpac's Tra
3303 132 611 128 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 311 471 137 UniNet S.A. de C.V.
6140 305 138 73 ImpSat
16814 217 13 7 NSS, S.A.
11172 210 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 155 12 30 Keytech SA
7303 145 67 24 Telecom Argentina Stet-France
6505 141 90 97 Global One Communicaoes Ltda
6503 124 148 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
13999 85 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 79 17 8 Red de Interconexion Universi
14420 79 5 41 ANDINATEL S.A.
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 94 276 73 The Internetworking Company o
20928 54 16 1 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
9129 32 3 2 UUNET Kenya
6713 30 38 9 Itissalat Al-MAGHRIB
5713 28 141 25 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
12455 20 6 4 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
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
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 754 748 Covad Communications
721 1040 735 DLA Systems Automation Center
4134 861 698 Data Communications Bureau
4323 810 589 Time Warner Telecom
9583 553 513 Satyam Infoway Ltd.,
6197 811 459 BellSouth Network Solutions,
27364 446 427 Armstrong Cable Services
5668 417 399 Century Telephone
7843 477 388 Adelphia Corp.
22773 405 385 Cox Communications, Inc. Atla
22909 415 356 Comcast Cable Corporation
701 1238 354 UUNET Technologies, Inc.
6467 379 348 E.Spire Communications, Inc.
6478 440 340 AT&T Worldnet Services
17676 387 330 XTAGE CORPORATION
1239 935 326 Sprint
4755 396 326 Videsh Sanchar Nigam Ltd. Aut
9929 349 315 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 547 279 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65512 PRIVATE 198.202.65.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.66.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.67.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.68.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.69.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.70.0/24 195 San Diego Supercompu
65512 PRIVATE 199.165.16.0/24 195 San Diego Supercompu
65512 PRIVATE 199.165.16.0/20 195 San Diego Supercompu
65512 PRIVATE 199.165.17.0/24 195 San Diego Supercompu
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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /14:315 /15:557 /16:8165 /17:2282 /18:3979
/19:9896 /20:10469 /21:8072 /22:11122 /23:12731 /24:82893
/25:263 /26:231 /27:115 /28:60 /29:39 /30:121
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 659 811 BellSouth Network Solutions,
2386 614 851 AT&T Data Communications Serv
7018 576 1418 AT&T WorldNet Services
27364 431 446 Armstrong Cable Services
702 389 634 UUNET - Commercial IP service
1239 386 935 Sprint
9583 384 553 Satyam Infoway Ltd.,
4766 367 547 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 358 1238 UUNET Technologies, Inc.
6198 321 440 BellSouth Network Solutions,
6467 289 379 E.Spire Communications, Inc.
6517 279 302 Yipes Communications, Inc.
9929 278 349 China Netcom Corp.
20115 271 592 Charter Communications
13609 270 312 Choice One Communications Inc
21502 270 273 NUMERICABLE is a cabled netwo
4323 260 810 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1437 13:1 15:5 16:2
17:3 18:2 20:5 24:757 32:71 33:3
38:86 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:7 61:643 62:508 63:1861
64:2468 65:2070 66:2489 67:459 68:536 69:810
70:42 72:11 80:526 81:586 82:360 83:209
84:61 85:3 128:118 129:165 130:89 131:192
132:29 134:187 135:30 136:187 137:78 138:188
139:36 140:222 141:107 142:133 143:120 144:164
145:43 146:279 147:96 148:350 149:111 150:93
151:62 152:129 153:68 154:2 155:131 156:62
157:70 158:135 159:162 160:58 161:73 162:379
163:84 164:219 165:170 166:121 167:221 168:353
169:124 170:314 171:9 189:1 192:5665 193:2965
194:2184 195:1558 196:583 198:3906 199:3304 200:3848
201:25 202:4942 203:5793 204:3571 205:2087 206:2312
207:2624 208:2103 209:3092 210:1518 211:647 212:1165
213:1232 214:225 215:31 216:3718 217:1070 218:179
219:84 220:285 221:67 222:21
End of report
