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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 11 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137961
Prefixes after maximum aggregation: 83549
Unique aggregates announced to Internet: 66580
Total ASes present in the Internet Routing Table: 17183
Origin-only ASes present in the Internet Routing Table: 14914
Origin ASes announcing only one prefix: 6912
Transit ASes present in the Internet Routing Table: 2269
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1302251704
Equivalent to 77 /8s, 158 /16s and 200 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100791
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26229
Total APNIC prefixes after maximum aggregation: 13645
Prefixes being announced from the APNIC address blocks: 24544
Unique aggregates announced from the APNIC address blocks: 13717
APNIC Region origin ASes present in the Internet Routing Table: 2050
APNIC Region origin ASes announcing only one prefix: 611
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 146408960
Equivalent to 8 /8s, 186 /16s and 6 /24s
Percentage of available APNIC address space announced: 66.8
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: 79414
Total ARIN prefixes after maximum aggregation: 48967
Prefixes being announced from the ARIN address blocks: 61380
Unique aggregates announced from the ARIN address blocks: 21315
ARIN Region origin ASes present in the Internet Routing Table: 9159
ARIN Region origin ASes announcing only one prefix: 3260
ARIN Region transit ASes present in the Internet Routing Table: 899
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 222889248
Equivalent to 13 /8s, 73 /16s and 5 /24s
Percentage of available ARIN address space announced: 73.8
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 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 25313
Total RIPE prefixes after maximum aggregation: 18044
Prefixes being announced from the RIPE address blocks: 22125
Unique aggregates announced from the RIPE address blocks: 14610
RIPE Region origin ASes present in the Internet Routing Table: 5433
RIPE Region origin ASes announcing only one prefix: 2914
RIPE Region transit ASes present in the Internet Routing Table: 930
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160461312
Equivalent to 9 /8s, 144 /16s and 114 /24s
Percentage of available RIPE address space announced: 56.3
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
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: 5851
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5509
Unique aggregates announced from the LACNIC address blocks: 3432
LACNIC Region origin ASes present in the Internet Routing Table: 375
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14786560
Equivalent to 0 /8s, 225 /16s and 160 /24s
Percentage of available LACNIC address space announced: 44.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 767
Unique aggregates announced from the AfriNIC address blocks: 572
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1850368
Equivalent to 0 /8s, 28 /16s and 60 /24s
Percentage of available AfriNIC address space announced: 11.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 853 1091 619 Telstra Pty Ltd
4134 769 3482 139 Data Communications Bureau
4766 483 2901 259 Korea Internet Exchange for "
9583 464 40 81 Satyam Infoway Ltd.,
4755 354 125 52 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 343 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 165 Pakistan Telecom
2764 292 274 240 connect.com.au pty ltd
7474 271 268 210 Optus Communications Pty Ltd
9942 230 71 126 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 190 31 45 BHARTI BT INTERNET LTD.
4837 178 1683 105 chinanet IDC center beijing n
17974 177 51 98 PT TELEKOMUNIKASI INDONESIA
9304 171 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1455 6927 1011 AT&T
701 1318 8542 944 UUNET Technologies, Inc.
1239 932 3016 632 Sprint
3356 893 10951 684 Level 3 Communications, LLC
209 739 3469 502 Qwest
4323 716 561 200 Time Warner Communications, I
18566 701 192 8 Covad Communications
6197 698 517 265 BellSouth Network Solutions,
3549 593 598 252 Global Crossing
6198 568 372 210 BellSouth Network Solutions,
852 513 1142 404 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 501 645 113 Adelphia Corp.
20115 479 821 241 Charter Communications
7132 451 7864 334 Southwestern Bell Internet Se
2386 426 593 232 AT&T Data Communications Serv
6347 400 387 93 SAVVIS Communications Corpora
705 398 145 273 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 388 841 27 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 654 2038 548 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 269 968 259 TeliaNet Sweden
8220 267 412 255 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 243 511 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 201 779 143 Sonera Solution Autonomous Sy
719 197 288 103 LANLINK autonomous system
3215 178 837 70 France Telecom Transpac
25186 176 188 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
8708 174 111 163 Romania Data Systems S.A.
5400 150 227 131 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 131 607 131 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 111 166 87 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 383 122 69 ImpSat
8151 267 373 129 UniNet S.A. de C.V.
11172 215 79 50 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 156 82 21 Telefonica Del Peru
7303 142 53 29 Telecom Argentina Stet-France
6505 132 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11556 88 73 25 Cable-Wireless Panama
11992 88 9 28 Integrated Systems
6535 80 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
14535 71 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
14420 69 4 28 ANDINATEL S.A.
7080 64 4 1 Electronica y Comunicaciones
10292 64 6 25 TELECOMMUNICATIONS OF JAMAICA
5639 62 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 29 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
8524 23 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
15808 13 1 5 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 701 693 Covad Communications
4134 769 630 Data Communications Bureau
4323 716 516 Time Warner Communications, I
6197 698 433 BellSouth Network Solutions,
7843 501 388 Adelphia Corp.
9583 464 383 Satyam Infoway Ltd.,
701 1318 374 UUNET Technologies, Inc.
5668 378 362 Century Telephone
22909 388 361 Comcast Cable Corporation
6198 568 358 BellSouth Network Solutions,
27364 365 346 Armstrong Cable Services
3549 593 341 Global Crossing
22773 369 329 Cox Communications, Inc. Atla
6140 383 314 ImpSat
9929 343 310 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 400 307 SAVVIS Communications Corpora
4755 354 302 Videsh Sanchar Nigam Ltd. Aut
1239 932 300 Sprint
4355 391 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
30306 UNALLOCATED 212.85.220.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.220.0/22 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.221.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.222.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.223.0/24 21242 Menasat - GDBC ,Glob
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
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 /10:6 /11:16 /12:58
/13:114 /14:294 /15:507 /16:7744 /17:2000 /18:3566
/19:9372 /20:9796 /21:7090 /22:10137 /23:11500 /24:75026
/25:211 /26:261 /27:141 /28:30 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7018 1091 1455 AT&T
701 994 1318 UUNET Technologies, Inc.
1221 759 853 Telstra Pty Ltd
18566 684 701 Covad Communications
1239 665 932 Sprint
3356 650 893 Level 3 Communications, LLC
6197 586 698 BellSouth Network Solutions,
3549 507 593 Global Crossing
4323 502 716 Time Warner Communications, I
209 490 739 Qwest
7066 477 505 Virginia Polytechnic Institut
6198 458 568 BellSouth Network Solutions,
9583 451 464 Satyam Infoway Ltd.,
702 434 654 UUNET - Commercial IP service
4766 396 483 Korea Internet Exchange for "
5668 359 378 Century Telephone
6140 358 383 ImpSat
27364 353 365 Armstrong Cable Services
705 352 398 UUNET Technologies, Inc.
852 352 513 Telus Advanced Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:816 13:1 15:5 16:1 17:3
20:8 24:692 32:96 38:66 40:54 44:3
55:1 56:4 57:13 61:411 62:486 63:1848
64:1937 65:1988 66:2508 67:317 68:512 69:531
70:64 80:507 81:283 82:163 83:56 128:146
129:205 130:77 131:89 132:18 133:1 134:184
135:17 136:186 137:104 138:150 139:39 140:154
141:134 142:113 143:54 144:91 145:41 146:307
147:77 148:370 149:113 150:93 151:64 152:184
153:62 154:1 155:123 156:58 157:55 158:144
159:147 160:51 161:53 162:380 163:76 164:334
165:160 166:99 167:219 168:220 169:105 170:283
171:8 192:5533 193:2684 194:2028 195:1369 196:544
198:3645 199:3036 200:3295 201:8 202:4548 203:5532
204:3011 205:1971 206:2308 207:2527 208:2297 209:2832
210:1382 211:517 212:960 213:1141 214:37 215:28
216:3385 217:904 218:170 219:99 220:213 221:28
222:28
End of report
