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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 28 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151239
Prefixes after maximum aggregation: 89132
Unique aggregates announced to Internet: 72431
Total ASes present in the Internet Routing Table: 18520
Origin-only ASes present in the Internet Routing Table: 16065
Origin ASes announcing only one prefix: 7562
Transit ASes present in the Internet Routing Table: 2455
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: 23
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: 15
Number of addresses announced to Internet: 1356295528
Equivalent to 80 /8s, 215 /16s and 109 /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: 69819
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29339
Total APNIC prefixes after maximum aggregation: 14443
Prefixes being announced from the APNIC address blocks: 27410
Unique aggregates announced from the APNIC address blocks: 14333
APNIC Region origin ASes present in the Internet Routing Table: 2158
APNIC Region origin ASes announcing only one prefix: 645
APNIC Region transit ASes present in the Internet Routing Table: 334
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 167641600
Equivalent to 9 /8s, 254 /16s and 2 /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: 85688
Total ARIN prefixes after maximum aggregation: 51950
Prefixes being announced from the ARIN address blocks: 65606
Unique aggregates announced from the ARIN address blocks: 23588
ARIN Region origin ASes present in the Internet Routing Table: 9739
ARIN Region origin ASes announcing only one prefix: 3530
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: 235790592
Equivalent to 14 /8s, 13 /16s and 225 /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: 28355
Total RIPE prefixes after maximum aggregation: 19678
Prefixes being announced from the RIPE address blocks: 25119
Unique aggregates announced from the RIPE address blocks: 16484
RIPE Region origin ASes present in the Internet Routing Table: 6058
RIPE Region origin ASes announcing only one prefix: 3248
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: 23
Number of RIPE addresses announced to Internet: 181205248
Equivalent to 10 /8s, 204 /16s and 249 /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: 6583
Total LACNIC prefixes after maximum aggregation: 2362
Prefixes being announced from the LACNIC address blocks: 6444
Unique aggregates announced from the LACNIC address blocks: 3976
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: 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: 16660992
Equivalent to 0 /8s, 254 /16s and 58 /24s
Percentage of available LACNIC address space announced: 49.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1256
Total AfriNIC prefixes after maximum aggregation: 699
Prefixes being announced from the AfriNIC address blocks: 862
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: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2072576
Equivalent to 0 /8s, 31 /16s and 160 /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 4421 164 Data Communications Bureau
1221 792 1182 569 Telstra Pty Ltd
9583 553 47 40 Satyam Infoway Ltd.,
4766 547 3408 268 Korea Internet Exchange for "
4755 388 134 69 Videsh Sanchar Nigam Ltd. Aut
17676 384 5756 57 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 353 1857 327 SINET Japan
9929 349 162 34 China Netcom Corp.
703 320 350 245 UUNET
17557 316 23 155 Pakistan Telecom
2764 283 272 231 connect.com.au pty ltd
7474 268 268 201 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9800 231 380 70 CHINA UNICOM
7563 229 48 165 Korea Internet Infrastructure
9942 229 72 123 COMindico Australia
9498 228 81 53 BHARTI BT INTERNET LTD.
10036 217 20 198 C&M Communication Co. Ltd.
17488 212 13 14 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1421 6632 983 AT&T WorldNet Services
701 1240 8385 886 UUNET Technologies, Inc.
721 1039 21084 305 DLA Systems Automation Center
1239 916 2879 605 Sprint
2386 848 530 610 AT&T Data Communications Serv
6197 810 381 352 BellSouth Network Solutions,
4323 809 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
209 655 3427 507 Qwest
3356 637 10947 462 Level 3 Communications, LLC
20115 591 461 315 Charter Communications
3561 549 2376 417 Cable & Wireless USA
852 519 1142 399 Telus Advanced Communications
7843 478 725 85 Adelphia Corp.
7132 452 8290 384 SBC Internet Services
27364 445 36 19 Armstrong Cable Services
6198 440 378 204 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
702 633 2026 523 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 255 167 81 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 158 46 128 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 347 139 80 ImpSat
8151 309 471 135 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 192 94 20 Telefonica Del Peru
11664 154 12 30 Keytech SA
7303 143 66 23 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 125 148 84 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 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 78 17 8 Red de Interconexion Universi
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
10292 70 6 24 TELECOMMUNICATIONS OF JAMAICA
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 98 276 72 The Internetworking Company o
20928 56 16 1 Noor Advanced Technologies AS
24835 42 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 3 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 1039 734 DLA Systems Automation Center
4134 862 698 Data Communications Bureau
4323 809 588 Time Warner Telecom
9583 553 513 Satyam Infoway Ltd.,
6197 810 458 BellSouth Network Solutions,
27364 445 426 Armstrong Cable Services
5668 417 399 Century Telephone
7843 478 393 Adelphia Corp.
22773 405 385 Cox Communications, Inc. Atla
22909 415 356 Comcast Cable Corporation
701 1240 354 UUNET Technologies, Inc.
6467 380 349 E.Spire Communications, Inc.
6478 435 339 AT&T Worldnet Services
17676 384 327 XTAGE CORPORATION
4755 388 319 Videsh Sanchar Nigam Ltd. Aut
9929 349 315 China Netcom Corp.
1239 916 311 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
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 /16:8154 /17:2282 /18:3984
/19:9881 /20:10461 /21:8044 /22:11101 /23:12708 /24:82643
/25:262 /26:228 /27:116 /28:58 /29:38 /30:121
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 658 810 BellSouth Network Solutions,
2386 612 848 AT&T Data Communications Serv
7018 579 1421 AT&T WorldNet Services
27364 430 445 Armstrong Cable Services
702 389 633 UUNET - Commercial IP service
9583 384 553 Satyam Infoway Ltd.,
1239 367 916 Sprint
4766 367 547 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 358 1240 UUNET Technologies, Inc.
6198 321 440 BellSouth Network Solutions,
6467 289 380 E.Spire Communications, Inc.
6517 280 303 Yipes Communications, Inc.
9929 278 349 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 12:1430 13:1 15:5 16:2
17:3 20:5 24:753 32:71 33:2 38:86
40:55 44:3 47:2 52:3 55:1 56:3
57:23 60:3 61:642 62:505 63:1841 64:2483
65:2069 66:2475 67:458 68:537 69:803 70:41
72:10 80:528 81:566 82:350 83:207 84:56
85:4 128:114 129:165 130:89 131:191 132:29
134:185 135:30 136:187 137:78 138:191 139:36
140:221 141:107 142:130 143:120 144:162 145:43
146:281 147:94 148:344 149:110 150:93 151:62
152:129 153:68 154:2 155:130 156:62 157:65
158:135 159:162 160:59 161:73 162:379 163:80
164:218 165:155 166:119 167:222 168:352 169:123
170:313 171:9 192:5663 193:2957 194:2180 195:1547
196:584 198:3894 199:3308 200:3825 201:25 202:4932
203:5795 204:3537 205:2083 206:2307 207:2606 208:2099
209:3098 210:1513 211:649 212:1169 213:1232 214:226
215:31 216:3722 217:1067 218:179 219:84 220:286
221:67 222:21
End of report
