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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 23 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138240
Prefixes after maximum aggregation: 84036
Unique aggregates announced to Internet: 67146
Total ASes present in the Internet Routing Table: 17267
Origin-only ASes present in the Internet Routing Table: 14972
Origin ASes announcing only one prefix: 6963
Transit ASes present in the Internet Routing Table: 2295
Transit-only ASes present in the Internet Routing Table: 78
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: 19
Number of addresses announced to Internet: 1289301500
Equivalent to 76 /8s, 217 /16s and 45 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 57.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 62012
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26487
Total APNIC prefixes after maximum aggregation: 13749
Prefixes being announced from the APNIC address blocks: 24798
Unique aggregates announced from the APNIC address blocks: 13842
APNIC Region origin ASes present in the Internet Routing Table: 2058
APNIC Region origin ASes announcing only one prefix: 616
APNIC Region transit ASes present in the Internet Routing Table: 334
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146970880
Equivalent to 8 /8s, 194 /16s and 153 /24s
Percentage of available APNIC address space announced: 67.1
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: 79095
Total ARIN prefixes after maximum aggregation: 49261
Prefixes being announced from the ARIN address blocks: 61145
Unique aggregates announced from the ARIN address blocks: 21536
ARIN Region origin ASes present in the Internet Routing Table: 9194
ARIN Region origin ASes announcing only one prefix: 3277
ARIN Region transit ASes present in the Internet Routing Table: 910
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224437280
Equivalent to 13 /8s, 96 /16s and 164 /24s
Percentage of available ARIN address space announced: 74.3
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 - 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: 25462
Total RIPE prefixes after maximum aggregation: 18135
Prefixes being announced from the RIPE address blocks: 22272
Unique aggregates announced from the RIPE address blocks: 14763
RIPE Region origin ASes present in the Internet Routing Table: 5471
RIPE Region origin ASes announcing only one prefix: 2942
RIPE Region transit ASes present in the Internet Routing Table: 937
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 162479104
Equivalent to 9 /8s, 175 /16s and 60 /24s
Percentage of available RIPE address space announced: 57.0
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: 6040
Total LACNIC prefixes after maximum aggregation: 2215
Prefixes being announced from the LACNIC address blocks: 5689
Unique aggregates announced from the LACNIC address blocks: 3493
LACNIC Region origin ASes present in the Internet Routing Table: 377
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14915072
Equivalent to 0 /8s, 227 /16s and 150 /24s
Percentage of available LACNIC address space announced: 44.5
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1150
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 771
Unique aggregates announced from the AfriNIC address blocks: 580
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
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: 16
Number of AfriNIC addresses announced to Internet: 1848576
Equivalent to 0 /8s, 28 /16s and 53 /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 852 1091 615 Telstra Pty Ltd
4134 770 3514 140 Data Communications Bureau
4766 488 2896 263 Korea Internet Exchange for "
9583 473 39 89 Satyam Infoway Ltd.,
4755 360 125 53 Videsh Sanchar Nigam Ltd. Aut
9443 354 69 78 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 345 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 329 375 258 UUNET
17557 327 23 167 Pakistan Telecom
2764 296 275 242 connect.com.au pty ltd
7474 265 268 208 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 224 367 62 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 194 47 46 BHARTI BT INTERNET LTD.
17974 180 51 98 PT TELEKOMUNIKASI INDONESIA
4837 176 1683 105 chinanet IDC center beijing n
10036 173 16 162 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1447 6892 1008 AT&T
701 1310 8545 938 UUNET Technologies, Inc.
1239 935 3000 637 Sprint
3356 891 10900 675 Level 3 Communications, LLC
209 734 3459 501 Qwest
4323 726 560 198 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 702 520 269 BellSouth Network Solutions,
6198 558 368 211 BellSouth Network Solutions,
20115 555 365 290 Charter Communications
852 512 1142 403 Telus Advanced Communications
7843 496 646 115 Adelphia Corp.
7132 450 7852 334 Southwestern Bell Internet Se
2386 429 601 232 AT&T Data Communications Serv
6347 401 388 90 SAVVIS Communications Corpora
705 400 147 274 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 387 840 29 Comcast Cable Corporation
376 384 359 112 Reseau Interordinateurs Scien
5668 380 71 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 651 2037 546 UUNET - Commercial IP service
3320 296 2477 236 Deutsche Telekom AG
3301 273 1096 263 TeliaNet Sweden
8220 273 428 260 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 240 493 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 202 795 144 Sonera Solution Autonomous Sy
719 178 288 102 LANLINK autonomous system
3215 176 833 69 France Telecom Transpac
8708 174 111 163 Romania Data Systems S.A.
25186 174 172 115 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
6746 152 29 126 Dynamic Network Technologies,
5400 150 225 128 BT Ignite European Backbone
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
8866 115 13 6 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 386 124 65 ImpSat
11172 360 96 56 Servicios Alestra S.A de C.V
8151 266 373 127 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 89 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
15311 75 19 37 Telefonica Empresas
14420 73 5 32 ANDINATEL S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 68 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 107 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 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 14 22 13 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 704 696 Covad Communications
4134 770 630 Data Communications Bureau
4323 726 528 Time Warner Communications, I
6197 702 433 BellSouth Network Solutions,
9583 473 384 Satyam Infoway Ltd.,
7843 496 381 Adelphia Corp.
701 1310 372 UUNET Technologies, Inc.
5668 380 363 Century Telephone
22909 387 358 Comcast Cable Corporation
6198 558 347 BellSouth Network Solutions,
27364 359 340 Armstrong Cable Services
22773 372 328 Cox Communications, Inc. Atla
6140 386 321 ImpSat
9929 345 312 China Netcom Corp.
6347 401 311 SAVVIS Communications Corpora
17676 341 308 XTAGE CORPORATION
4755 360 307 Videsh Sanchar Nigam Ltd. Aut
11172 360 304 Servicios Alestra S.A de C.V
1239 935 298 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
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
65001 PRIVATE 148.235.124.0/24 8151 UniNet S.A. de C.V.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65001 PRIVATE 200.79.116.0/24 8151 UniNet S.A. de C.V.
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
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
192.70.164.0/24 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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
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 /8:18 /9:3 /10:6 /11:15 /12:59
/13:120 /14:293 /15:511 /16:7748 /17:2022 /18:3593
/19:9378 /20:9872 /21:7183 /22:10185 /23:11529 /24:75003
/25:212 /26:255 /27:132 /28:31 /29:8 /30:52
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 687 704 Covad Communications
7018 552 1447 AT&T
6197 533 702 BellSouth Network Solutions,
3356 506 891 Level 3 Communications, LLC
702 396 651 UUNET - Commercial IP service
6198 395 558 BellSouth Network Solutions,
701 365 1310 UUNET Technologies, Inc.
1239 361 935 Sprint
27364 347 359 Armstrong Cable Services
5668 332 380 Century Telephone
9583 314 473 Satyam Infoway Ltd.,
4766 311 488 Korea Internet Exchange for "
20115 296 555 Charter Communications
9929 275 345 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 296 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
13609 235 276 Choice One Communications Inc
6517 231 257 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:818 13:1 15:5 16:1 17:3
20:8 24:724 32:97 38:69 40:53 44:3
55:1 56:4 57:15 61:377 62:490 63:1827
64:1831 65:1986 66:2499 67:313 68:508 69:551
70:64 80:501 81:297 82:174 83:56 128:150
129:194 130:82 131:131 132:18 133:1 134:178
135:17 136:186 137:106 138:157 139:38 140:156
141:126 142:117 143:54 144:90 145:42 146:299
147:76 148:403 149:115 150:93 151:66 152:165
153:62 154:1 155:120 156:61 157:58 158:145
159:147 160:53 161:54 162:381 163:73 164:159
165:160 166:99 167:219 168:224 169:105 170:286
171:8 192:5523 193:2697 194:2030 195:1365 196:549
198:3677 199:3035 200:3456 201:7 202:4562 203:5551
204:3044 205:1989 206:2253 207:2444 208:2237 209:2793
210:1434 211:549 212:970 213:1151 214:56 215:28
216:3381 217:917 218:170 219:108 220:217 221:28
222:28
End of report
