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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 28 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158571
Prefixes after maximum aggregation: 92512
Unique aggregates announced to Internet: 76262
Total ASes present in the Internet Routing Table: 19241
Origin-only ASes present in the Internet Routing Table: 16738
Origin ASes announcing only one prefix: 7796
Transit ASes present in the Internet Routing Table: 2503
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: 21
Prefixes from unregistered ASNs in the Routing Table: 25
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1390104084
Equivalent to 82 /8s, 219 /16s and 78 /24s
Percentage of available address space announced: 37.5
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73977
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32097
Total APNIC prefixes after maximum aggregation: 15230
Prefixes being announced from the APNIC address blocks: 30019
Unique aggregates announced from the APNIC address blocks: 15268
APNIC Region origin ASes present in the Internet Routing Table: 2229
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 179571328
Equivalent to 10 /8s, 180 /16s and 10 /24s
Percentage of available APNIC address space announced: 66.6
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: 86319
Total ARIN prefixes after maximum aggregation: 52802
Prefixes being announced from the ARIN address blocks: 67328
Unique aggregates announced from the ARIN address blocks: 24774
ARIN Region origin ASes present in the Internet Routing Table: 9783
ARIN Region origin ASes announcing only one prefix: 3541
ARIN Region transit ASes present in the Internet Routing Table: 924
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 243283712
Equivalent to 14 /8s, 128 /16s and 55 /24s
Percentage of available ARIN address space announced: 72.5
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: 30225
Total RIPE prefixes after maximum aggregation: 20759
Prefixes being announced from the RIPE address blocks: 27238
Unique aggregates announced from the RIPE address blocks: 17991
RIPE Region origin ASes present in the Internet Routing Table: 6456
RIPE Region origin ASes announcing only one prefix: 3394
RIPE Region transit ASes present in the Internet Routing Table: 1088
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 196550340
Equivalent to 11 /8s, 183 /16s and 30 /24s
Percentage of available RIPE address space announced: 68.9
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: 8508
Total LACNIC prefixes after maximum aggregation: 3023
Prefixes being announced from the LACNIC address blocks: 6934
Unique aggregates announced from the LACNIC address blocks: 3993
LACNIC Region origin ASes present in the Internet Routing Table: 609
LACNIC Region origin ASes announcing only one prefix: 190
LACNIC Region transit ASes present in the Internet Routing Table: 111
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17841408
Equivalent to 1 /8s, 16 /16s and 61 /24s
Percentage of available LACNIC address space announced: 53.2
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1392
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 898
Unique aggregates announced from the AfriNIC address blocks: 719
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 23
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: 2189824
Equivalent to 0 /8s, 33 /16s and 106 /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 895 4777 178 CHINANET-BACKBONE
1221 787 1191 559 Telstra Pty Ltd
9583 631 50 32 Sify Limited
4766 584 3415 275 Korea Telecom (KIX)
4755 501 242 105 Videsh Sanchar Nigam Ltd. Aut
7545 484 86 69 TPG Internet Pty Ltd
17676 425 6428 74 Softbank BB Corp.
9443 371 77 77 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
2907 345 1823 319 SINET Japan
17557 335 24 154 Pakistan Telecom
10036 306 28 279 C&M Communication Co. Ltd.
4808 300 247 161 CNCGROUP IP network: China169
7474 291 268 211 SingTel Optus Pty Ltd
4802 283 47 167 Wantree Development
9498 260 81 52 BHARTI BT INTERNET LTD.
2764 255 238 203 AAPT Limited
703 249 279 207 UUNET - Commercial IP service
9800 235 386 69 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 1477 6562 966 AT&T WorldNet Services
721 1116 21763 314 DLA Systems Automation Center
4323 1086 663 224 Time Warner Telecom
701 1018 8283 867 UUNET Technologies, Inc.
174 927 5570 785 Cogent Communications
1239 917 2868 663 Sprint
6197 881 383 412 BellSouth Network Solutions,
2386 835 501 614 AT&T Data Communications Serv
18566 780 208 6 Covad Communications
209 635 3476 500 Qwest
20115 592 492 309 Charter Communications
3356 581 10851 429 Level 3 Communications, LLC
852 540 1095 399 Telus Advanced Communications
3561 539 2370 415 Savvis
3602 506 121 93 Sprint Canada, Inc.
6478 498 833 115 AT&T Worldnet Services
22773 475 1188 21 Cox Communications, Inc.
5668 474 115 27 CenturyTel Internet Holdings,
6198 470 567 191 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 603 2004 493 UUNET - Commercial IP service
3320 296 2992 231 Deutsche Telekom AG
3301 289 1116 279 TeliaNet Sweden
8220 276 466 270 COLT Telecommunications
680 254 2041 239 DFN-IP service G-WiN
3246 231 475 225 Song Networks
8708 224 251 203 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
9121 206 239 45 TTnet Autonomous System
1257 201 712 177 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 166 1456 72 TELECOM ITALIA
6746 162 47 142 Dynamic Network Technologies,
719 158 322 99 LANLINK autonomous system
8866 155 20 7 Bulgarian Telecommunication C
3300 151 184 84 AUCS Communications Services
6830 143 529 28 UPC Distribution Services
5400 142 281 124 BT Ignite European Backbone
25186 141 138 99 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 340 489 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 214 99 52 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
19632 191 14 7 Metropolis Intercom S.A.
11664 149 19 23 Keytech SA
7303 147 67 31 Telecom Argentina Stet-France
6505 132 90 88 Global One Communicaoes Ltda
14117 119 8 4 Telefonica del Sur S.A.
22047 116 96 6 VTR PUNTO NET S.A.
6503 103 145 73 AVANTEL, S.A.
18822 102 6 14 TELEFONICA MANQUEHUE
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
19169 92 6 16 Telconet
23216 88 24 24 RAMtelecom Telecomunicaciones
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.
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
20928 91 16 2 Noor Advanced Technologies AS
2018 90 295 87 Tertiary Education Network
2905 74 266 68 The Internetworking Company o
24835 58 34 6 RAYA Telecom - Egypt
8452 55 20 5 TEDATA
12455 41 7 4 Jambonet Autonomous system
9129 39 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
7460 18 3 5 LIA Internet Access
8346 18 10 11 SONATEL-AS Autonomous System
12258 18 3 12 Vodacom Internet Company
21280 18 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65531 *
4323 1086 862 Time Warner Telecom
721 1116 802 DLA Systems Automation Center
18566 780 774 Covad Communications
4134 895 717 CHINANET-BACKBONE
9583 631 599 Sify Limited
6197 881 469 BellSouth Network Solutions,
22773 475 454 Cox Communications, Inc.
5668 474 447 CenturyTel Internet Holdings,
27364 465 447 Armstrong Cable Services
7545 484 415 TPG Internet Pty Ltd
3602 506 413 Sprint Canada, Inc.
4755 501 396 Videsh Sanchar Nigam Ltd. Aut
6467 420 387 E.Spire Communications, Inc.
6478 498 383 AT&T Worldnet Services
17676 425 351 Softbank BB Corp.
6140 383 313 ImpSat
9929 358 313 China Netcom Corp.
4766 584 309 Korea Telecom (KIX)
9443 371 294 Primus Telecommunications
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
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 /8:19 /9:3 /10:8 /11:14 /12:64
/13:151 /14:305 /15:576 /16:8329 /17:2490 /18:4270
/19:10138 /20:10860 /21:8716 /22:12119 /23:13204 /24:86410
/25:281 /26:265 /27:132 /28:59 /29:26 /30:89
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 765 780 Covad Communications
6197 722 881 BellSouth Network Solutions,
7018 651 1477 AT&T WorldNet Services
2386 587 835 AT&T Data Communications Serv
4323 506 1086 Time Warner Telecom
9583 453 631 Sify Limited
27364 450 465 Armstrong Cable Services
4766 400 584 Korea Telecom (KIX)
5668 400 474 CenturyTel Internet Holdings,
1239 381 917 Sprint
702 366 603 UUNET - Commercial IP service
6198 337 470 BellSouth Network Solutions,
6467 313 420 E.Spire Communications, Inc.
10036 306 306 C&M Communication Co. Ltd.
6517 289 311 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 263 310 Carolina Online, Inc.
15270 249 268 PaeTec.net -a division of Pae
13609 247 292 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:12 12:1508 13:1 15:9 16:2
17:3 18:4 20:4 24:740 32:64 33:4
38:102 40:55 44:3 47:2 52:3 55:2
56:3 57:23 58:5 59:11 60:25 61:740
62:540 63:1875 64:2633 65:2082 66:2734 67:510
68:506 69:950 70:77 71:5 72:122 80:537
81:509 82:354 83:248 84:130 85:167 128:137
129:156 130:89 131:280 132:33 133:1 134:144
135:40 136:184 137:66 138:158 139:50 140:193
141:105 142:139 143:130 144:171 145:45 146:279
147:101 148:293 149:167 150:97 151:63 152:108
153:85 154:3 155:143 156:67 157:88 158:167
159:168 160:72 161:60 162:199 163:84 164:213
165:160 166:127 167:230 168:418 169:135 170:312
171:8 172:1 192:5659 193:3110 194:2318 195:1615
196:624 198:3915 199:3263 200:4061 201:60 202:5351
203:6122 204:3749 205:2030 206:2358 207:2708 208:2075
209:3233 210:1642 211:826 212:1178 213:1280 214:241
215:31 216:3684 217:1142 218:190 219:101 220:371
221:123 222:73
End of report
