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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 26 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151284
Prefixes after maximum aggregation: 89158
Unique aggregates announced to Internet: 72411
Total ASes present in the Internet Routing Table: 18526
Origin-only ASes present in the Internet Routing Table: 16080
Origin ASes announcing only one prefix: 7566
Transit ASes present in the Internet Routing Table: 2446
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: 23
Prefixes from unregistered ASNs in the Routing Table: 20
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1356145256
Equivalent to 80 /8s, 213 /16s and 34 /24s
Percentage of available address space announced: 36.6
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69821
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29280
Total APNIC prefixes after maximum aggregation: 14456
Prefixes being announced from the APNIC address blocks: 27345
Unique aggregates announced from the APNIC address blocks: 14333
APNIC Region origin ASes present in the Internet Routing Table: 2166
APNIC Region origin ASes announcing only one prefix: 652
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 167575808
Equivalent to 9 /8s, 253 /16s and 1 /24s
Percentage of available APNIC address space announced: 76.5
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: 85826
Total ARIN prefixes after maximum aggregation: 52018
Prefixes being announced from the ARIN address blocks: 65709
Unique aggregates announced from the ARIN address blocks: 23582
ARIN Region origin ASes present in the Internet Routing Table: 9746
ARIN Region origin ASes announcing only one prefix: 3528
ARIN Region transit ASes present in the Internet Routing Table: 957
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235841792
Equivalent to 14 /8s, 14 /16s and 169 /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: 28288
Total RIPE prefixes after maximum aggregation: 19630
Prefixes being announced from the RIPE address blocks: 25049
Unique aggregates announced from the RIPE address blocks: 16449
RIPE Region origin ASes present in the Internet Routing Table: 6049
RIPE Region origin ASes announcing only one prefix: 3245
RIPE Region transit ASes present in the Internet Routing Table: 1032
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 181005056
Equivalent to 10 /8s, 201 /16s and 235 /24s
Percentage of available RIPE address space announced: 63.5
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: 6616
Total LACNIC prefixes after maximum aggregation: 2357
Prefixes being announced from the LACNIC address blocks: 6474
Unique aggregates announced from the LACNIC address blocks: 3995
LACNIC Region origin ASes present in the Internet Routing Table: 405
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16751616
Equivalent to 0 /8s, 255 /16s and 156 /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: 1255
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 862
Unique aggregates announced from the AfriNIC address blocks: 668
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: 2072320
Equivalent to 0 /8s, 31 /16s and 159 /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 862 4405 163 Data Communications Bureau
1221 782 1165 563 Telstra Pty Ltd
9583 551 47 40 Satyam Infoway Ltd.,
4766 547 3408 268 Korea Internet Exchange for "
4755 389 134 71 Videsh Sanchar Nigam Ltd. Aut
17676 384 5756 57 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 348 161 33 China Netcom Corp.
703 321 350 246 UUNET
17557 314 23 156 Pakistan Telecom
2764 285 273 232 connect.com.au pty ltd
7474 269 268 200 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9800 231 380 70 CHINA UNICOM
9942 229 72 123 COMindico Australia
7563 228 48 165 Korea Internet Infrastructure
9498 226 81 53 BHARTI BT INTERNET LTD.
10036 217 20 198 C&M Communication Co. Ltd.
17488 213 13 13 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1420 6631 983 AT&T WorldNet Services
701 1241 8385 887 UUNET Technologies, Inc.
721 1038 21084 305 DLA Systems Automation Center
1239 926 2881 614 Sprint
2386 851 531 612 AT&T Data Communications Serv
4323 809 672 221 Time Warner Telecom
6197 809 380 351 BellSouth Network Solutions,
18566 754 208 6 Covad Communications
209 656 3429 508 Qwest
3356 638 10963 463 Level 3 Communications, LLC
20115 591 461 315 Charter Communications
3561 550 2377 418 Cable & Wireless USA
852 518 1141 398 Telus Advanced Communications
7843 478 725 85 Adelphia Corp.
7132 451 8289 383 SBC Internet Services
27364 444 36 19 Armstrong Cable Services
6198 439 377 203 BellSouth Network Solutions,
6478 435 775 96 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
3301 281 1100 272 TeliaNet Sweden
8220 280 463 265 COLT Internet - International
21502 273 40 3 NUMERICABLE is a cabled netwo
3300 257 167 82 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
3246 220 478 216 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 160 20 7 Bulgarian Telecommunication C
719 158 322 105 LANLINK autonomous system
6746 157 30 127 Dynamic Network Technologies,
3269 153 1297 69 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
3303 131 611 128 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 140 73 ImpSat
8151 308 471 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 210 99 55 Servicios Alestra S.A de C.V
6147 190 94 20 Telefonica Del Peru
11664 154 12 30 Keytech SA
7303 142 65 22 Telecom Argentina Stet-France
6505 141 90 95 Global One Communicaoes Ltda
6503 125 164 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
10481 82 32 7 Prima S.A.
14420 82 5 34 ANDINATEL S.A.
4270 80 18 9 Red de Interconexion Universi
13999 80 52 9 Mega Cable S.A. de C.V.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
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 97 276 71 The Internetworking Company o
20928 56 16 1 Noor Advanced Technologies AS
24835 41 34 7 RAYA Telecom - Egypt
9129 35 3 4 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 19 4 2 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
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 754 748 Covad Communications
721 1038 733 DLA Systems Automation Center
4134 862 699 Data Communications Bureau
4323 809 588 Time Warner Telecom
9583 551 511 Satyam Infoway Ltd.,
6197 809 458 BellSouth Network Solutions,
27364 444 425 Armstrong Cable Services
5668 417 399 Century Telephone
7843 478 393 Adelphia Corp.
22773 404 385 Cox Communications, Inc. Atla
22909 415 356 Comcast Cable Corporation
701 1241 354 UUNET Technologies, Inc.
6467 372 347 E.Spire Communications, Inc.
6478 435 339 AT&T Worldnet Services
17676 384 327 XTAGE CORPORATION
4755 389 318 Videsh Sanchar Nigam Ltd. Aut
9929 348 315 China Netcom Corp.
1239 926 312 Sprint
4355 392 293 EarthLink, Inc.
4766 547 279 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65400 PRIVATE 192.55.193.0/24 1290 PSINet UK Ltd.
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
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 /16:8156 /17:2273 /18:3970
/19:9879 /20:10441 /21:8058 /22:11107 /23:12721 /24:82698
/25:258 /26:223 /27:117 /28:68 /29:39 /30:117
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 657 809 BellSouth Network Solutions,
2386 614 851 AT&T Data Communications Serv
7018 578 1420 AT&T WorldNet Services
27364 429 444 Armstrong Cable Services
702 389 634 UUNET - Commercial IP service
9583 382 551 Satyam Infoway Ltd.,
1239 368 926 Sprint
4766 367 547 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 358 1241 UUNET Technologies, Inc.
6198 320 439 BellSouth Network Solutions,
6467 286 372 E.Spire Communications, Inc.
6517 280 303 Yipes Communications, Inc.
9929 278 348 China Netcom Corp.
13609 270 312 Choice One Communications Inc
20115 270 591 Charter Communications
21502 270 273 NUMERICABLE is a cabled netwo
4323 259 809 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1435 13:1 15:5 16:2
17:3 20:5 24:752 32:71 33:2 38:84
40:55 44:3 47:2 52:3 55:1 56:3
57:24 60:2 61:629 62:503 63:1859 64:2488
65:2071 66:2474 67:458 68:537 69:802 70:42
72:10 80:530 81:560 82:352 83:208 84:55
85:4 128:116 129:165 130:89 131:191 132:29
134:185 135:30 136:187 137:78 138:191 139:36
140:222 141:107 142:129 143:120 144:164 145:43
146:282 147:95 148:331 149:111 150:92 151:62
152:129 153:68 154:2 155:131 156:62 157:70
158:134 159:162 160:59 161:73 162:379 163:83
164:220 165:162 166:118 167:222 168:356 169:123
170:314 171:9 192:5667 193:2956 194:2174 195:1543
196:584 198:3865 199:3306 200:3850 201:25 202:4914
203:5794 204:3563 205:2106 206:2314 207:2621 208:2104
209:3110 210:1519 211:649 212:1160 213:1228 214:225
215:31 216:3720 217:1056 218:178 219:84 220:285
221:66 222:21
End of report
