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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 17 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157662
Prefixes after maximum aggregation: 92250
Unique aggregates announced to Internet: 75693
Total ASes present in the Internet Routing Table: 19169
Origin-only ASes present in the Internet Routing Table: 16684
Origin ASes announcing only one prefix: 7788
Transit ASes present in the Internet Routing Table: 2485
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 26
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1385488676
Equivalent to 82 /8s, 148 /16s and 225 /24s
Percentage of available address space announced: 37.4
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73451
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31697
Total APNIC prefixes after maximum aggregation: 15170
Prefixes being announced from the APNIC address blocks: 29718
Unique aggregates announced from the APNIC address blocks: 15152
APNIC Region origin ASes present in the Internet Routing Table: 2223
APNIC Region origin ASes announcing only one prefix: 653
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 177497280
Equivalent to 10 /8s, 148 /16s and 100 /24s
Percentage of available APNIC address space announced: 65.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87649
Total ARIN prefixes after maximum aggregation: 53280
Prefixes being announced from the ARIN address blocks: 67065
Unique aggregates announced from the ARIN address blocks: 24398
ARIN Region origin ASes present in the Internet Routing Table: 9942
ARIN Region origin ASes announcing only one prefix: 3600
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 242880256
Equivalent to 14 /8s, 122 /16s and 15 /24s
Percentage of available ARIN address space announced: 72.4
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, 29696-30719, 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: 29996
Total RIPE prefixes after maximum aggregation: 20683
Prefixes being announced from the RIPE address blocks: 26951
Unique aggregates announced from the RIPE address blocks: 17865
RIPE Region origin ASes present in the Internet Routing Table: 6413
RIPE Region origin ASes announcing only one prefix: 3390
RIPE Region transit ASes present in the Internet Routing Table: 1076
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 194397392
Equivalent to 11 /8s, 150 /16s and 68 /24s
Percentage of available RIPE address space announced: 68.2
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, 33792-35839
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: 6915
Total LACNIC prefixes after maximum aggregation: 2413
Prefixes being announced from the LACNIC address blocks: 6877
Unique aggregates announced from the LACNIC address blocks: 4034
LACNIC Region origin ASes present in the Internet Routing Table: 424
LACNIC Region origin ASes announcing only one prefix: 124
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17798912
Equivalent to 1 /8s, 15 /16s and 151 /24s
Percentage of available LACNIC address space announced: 53.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1378
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 906
Unique aggregates announced from the AfriNIC address blocks: 727
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2190080
Equivalent to 0 /8s, 33 /16s and 107 /24s
Percentage of available AfriNIC address space announced: 13.1
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 892 4729 176 Data Communications Bureau
1221 784 1187 557 Telstra Pty Ltd
9583 620 50 28 Satyam Infoway Ltd.,
4766 582 3415 276 Korea Internet Exchange for "
4755 492 241 102 Videsh Sanchar Nigam Ltd. Aut
7545 476 86 69 TPG Internet Pty Ltd
17676 413 6236 75 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 359 175 41 China Netcom Corp.
17557 356 25 158 Pakistan Telecom
2907 347 1823 321 SINET Japan
10036 300 27 273 C&M Communication Co. Ltd.
4808 299 245 160 CHINANET core WAN North
7474 289 283 211 Optus Communications Pty Ltd
4802 282 47 166 Wantree Development
703 260 332 217 UUNET
2764 255 237 203 connect.com.au pty ltd
9498 254 82 53 BHARTI BT INTERNET LTD.
9800 239 390 73 CHINA UNICOM
17974 235 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6565 965 AT&T WorldNet Services
721 1120 21763 314 DLA Systems Automation Center
4323 1068 668 221 Time Warner Telecom
701 1028 8273 877 UUNET Technologies, Inc.
1239 914 2872 662 Sprint
6197 878 383 411 BellSouth Network Solutions,
174 869 5561 732 PSINet Inc.
2386 832 498 614 AT&T Data Communications Serv
18566 776 208 6 Covad Communications
209 637 3474 501 Qwest
20115 585 485 305 Charter Communications
3356 578 10863 429 Level 3 Communications, LLC
3561 557 2373 415 Cable & Wireless USA
852 531 1095 398 Telus Advanced Communications
3602 505 121 93 Sprint Canada, Inc.
6478 500 832 108 AT&T Worldnet Services
22773 478 1218 25 Cox Communications, Inc. Atla
6198 469 567 190 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 460 115 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 606 2005 496 UUNET - Commercial IP service
3320 294 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 229 476 223 Song Networks
8708 225 123 203 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
1257 196 710 173 SWIPnet Swedish IP Network
9121 189 235 41 TTnet Autonomous System
5515 179 778 129 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 172 19 20 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
6746 160 47 141 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
3300 150 184 85 AUCS Communications Services
6830 143 529 28 UPC Distribution Services
25186 143 138 101 France Telecom Transpac's Tra
5400 142 281 124 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 382 140 72 ImpSat
8151 337 489 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 215 99 53 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 147 67 31 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 118 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
6503 103 145 73 AVANTEL, S.A.
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
6535 87 7 23 Chilesat Servicios Empresari
11311 86 8 22 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
7738 75 298 16 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 88 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 55 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
12455 41 7 4 Jambonet Autonomous system
9129 38 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 17 10 11 SONATEL-AS Autonomous System
21280 17 2 3 Swift Global Kenya Ltd.Is an
15808 16 1 1 Communication Solutions Ltd i
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1068 847 Time Warner Telecom
721 1120 806 DLA Systems Automation Center
18566 776 770 Covad Communications
4134 892 716 Data Communications Bureau
9583 620 592 Satyam Infoway Ltd.,
6197 878 467 BellSouth Network Solutions,
22773 478 453 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 460 443 Century Telephone
3602 505 412 Sprint Canada, Inc.
7545 476 407 TPG Internet Pty Ltd
6478 500 392 AT&T Worldnet Services
4755 492 390 Videsh Sanchar Nigam Ltd. Aut
6467 411 378 E.Spire Communications, Inc.
17676 413 338 XTAGE CORPORATION
9929 359 318 China Netcom Corp.
6140 382 310 ImpSat
4766 582 306 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
20115 585 280 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
172.32.0.0/24 7011 Citizens Utilities
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:3 /10:8 /11:14 /12:62
/13:150 /14:305 /15:572 /16:8325 /17:2454 /18:4185
/19:10113 /20:10802 /21:8697 /22:12030 /23:13170 /24:85922
/25:262 /26:255 /27:103 /28:53 /29:26 /30:88
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 761 776 Covad Communications
6197 719 878 BellSouth Network Solutions,
7018 639 1469 AT&T WorldNet Services
2386 587 832 AT&T Data Communications Serv
4323 492 1068 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 442 620 Satyam Infoway Ltd.,
4766 399 582 Korea Internet Exchange for "
5668 383 460 Century Telephone
1239 376 914 Sprint
702 369 606 UUNET - Commercial IP service
6198 336 469 BellSouth Network Solutions,
6467 305 411 E.Spire Communications, Inc.
10036 300 300 C&M Communication Co. Ltd.
6517 289 311 Yipes Communications, Inc.
9929 282 359 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 263 310 Carolina Online, Inc.
701 249 1028 UUNET Technologies, Inc.
15270 247 266 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1499 13:1 15:9 16:2
17:3 18:4 20:5 24:740 32:64 33:5
38:100 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:4 59:7 60:23 61:735
62:527 63:1879 64:2620 65:2068 66:2726 67:508
68:506 69:923 70:70 71:5 72:97 80:534
81:504 82:345 83:243 84:132 85:167 128:149
129:159 130:88 131:282 132:35 133:1 134:142
135:34 136:190 137:66 138:158 139:50 140:199
141:103 142:139 143:130 144:171 145:45 146:281
147:98 148:292 149:164 150:97 151:62 152:110
153:85 154:3 155:142 156:68 157:85 158:166
159:168 160:71 161:60 162:201 163:86 164:214
165:155 166:127 167:229 168:409 169:133 170:312
171:8 172:1 192:5659 193:3121 194:2295 195:1601
196:635 198:3883 199:3264 200:4024 201:57 202:5320
203:6100 204:3714 205:2035 206:2368 207:2694 208:2075
209:3186 210:1616 211:820 212:1169 213:1260 214:242
215:31 216:3656 217:1106 218:192 219:113 220:370
221:110 222:76
End of report
