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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 30 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158919
Prefixes after maximum aggregation: 92645
Unique aggregates announced to Internet: 76414
Total ASes present in the Internet Routing Table: 19256
Origin-only ASes present in the Internet Routing Table: 16760
Origin ASes announcing only one prefix: 7805
Transit ASes present in the Internet Routing Table: 2496
Transit-only ASes present in the Internet Routing Table: 67
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: 28
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1390265624
Equivalent to 82 /8s, 221 /16s and 197 /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: 74157
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32187
Total APNIC prefixes after maximum aggregation: 15311
Prefixes being announced from the APNIC address blocks: 30108
Unique aggregates announced from the APNIC address blocks: 15331
APNIC Region origin ASes present in the Internet Routing Table: 2235
APNIC Region origin ASes announcing only one prefix: 652
APNIC Region transit ASes present in the Internet Routing Table: 337
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 179932544
Equivalent to 10 /8s, 185 /16s and 141 /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, 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: 86514
Total ARIN prefixes after maximum aggregation: 52833
Prefixes being announced from the ARIN address blocks: 67486
Unique aggregates announced from the ARIN address blocks: 24791
ARIN Region origin ASes present in the Internet Routing Table: 9787
ARIN Region origin ASes announcing only one prefix: 3544
ARIN Region transit ASes present in the Internet Routing Table: 921
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 243311616
Equivalent to 14 /8s, 128 /16s and 164 /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: 30310
Total RIPE prefixes after maximum aggregation: 20788
Prefixes being announced from the RIPE address blocks: 27324
Unique aggregates announced from the RIPE address blocks: 18052
RIPE Region origin ASes present in the Internet Routing Table: 6467
RIPE Region origin ASes announcing only one prefix: 3396
RIPE Region transit ASes present in the Internet Routing Table: 1087
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 196429252
Equivalent to 11 /8s, 181 /16s and 69 /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: 8477
Total LACNIC prefixes after maximum aggregation: 3013
Prefixes being announced from the LACNIC address blocks: 6917
Unique aggregates announced from the LACNIC address blocks: 3989
LACNIC Region origin ASes present in the Internet Routing Table: 607
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 109
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17810176
Equivalent to 1 /8s, 15 /16s and 195 /24s
Percentage of available LACNIC address space announced: 53.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1398
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 897
Unique aggregates announced from the AfriNIC address blocks: 719
AfriNIC Region origin ASes present in the Internet Routing Table: 98
AfriNIC Region origin ASes announcing only one prefix: 24
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 4827 180 CHINANET-BACKBONE
1221 788 1191 560 Telstra Pty Ltd
9583 641 51 36 Sify Limited
4766 584 3415 275 Korea Telecom (KIX)
4755 510 243 111 Videsh Sanchar Nigam Ltd. Aut
7545 482 86 71 TPG Internet Pty Ltd
17676 424 6444 71 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
2907 344 1823 319 SINET Japan
17557 337 24 158 Pakistan Telecom
10036 306 28 279 C&M Communication Co. Ltd.
4808 303 248 164 CNCGROUP IP network: China169
7474 291 268 211 SingTel Optus Pty Ltd
4802 281 47 167 Wantree Development
9498 261 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 234 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1479 6562 968 AT&T WorldNet Services
721 1118 21763 313 DLA Systems Automation Center
4323 1091 663 224 Time Warner Telecom
701 1019 8283 868 UUNET Technologies, Inc.
174 939 5570 797 Cogent Communications
1239 911 2867 660 Sprint
6197 881 383 412 BellSouth Network Solutions,
2386 835 500 617 AT&T Data Communications Serv
18566 780 208 6 Covad Communications
209 646 3475 501 Qwest
20115 595 494 308 Charter Communications
3356 583 10852 431 Level 3 Communications, LLC
3561 539 2370 415 Savvis
852 538 1095 397 Telus Advanced Communications
3602 506 121 93 Sprint Canada, Inc.
6478 502 833 113 AT&T Worldnet Services
22773 475 1188 21 Cox Communications, Inc.
5668 474 115 27 CenturyTel Internet Holdings,
6198 469 567 191 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
702 604 2004 494 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 212 241 46 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
8866 164 21 12 Bulgarian Telecommunication C
6746 161 47 141 Dynamic Network Technologies,
719 158 322 99 LANLINK autonomous system
3300 152 184 85 AUCS Communications Services
5400 143 281 125 BT Ignite European Backbone
6830 143 529 28 UPC Distribution Services
25186 142 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 339 489 142 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 148 67 28 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 104 145 74 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 90 6 21 Telconet
23216 88 24 24 RAMtelecom Telecomunicaciones
6535 87 7 23 Chilesat Servicios Empresari
11311 85 8 21 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 116 15 19 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
8452 61 20 5 TEDATA
24835 57 34 6 RAYA Telecom - Egypt
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 1091 867 Time Warner Telecom
721 1118 805 DLA Systems Automation Center
18566 780 774 Covad Communications
4134 895 715 CHINANET-BACKBONE
9583 641 605 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
3602 506 413 Sprint Canada, Inc.
7545 482 411 TPG Internet Pty Ltd
4755 510 399 Videsh Sanchar Nigam Ltd. Aut
6478 502 389 AT&T Worldnet Services
6467 422 388 E.Spire Communications, Inc.
17676 424 353 Softbank BB Corp.
6140 384 313 ImpSat
9929 358 313 China Netcom Corp.
4766 584 309 Korea Telecom (KIX)
9443 370 294 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 64.111.163.0/24 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 64.111.166.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.168.0/24 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 /14:307 /15:579 /16:8323 /17:2503 /18:4290
/19:10129 /20:10866 /21:8725 /22:12130 /23:13212 /24:86700
/25:280 /26:267 /27:132 /28:60 /29:25 /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 653 1479 AT&T WorldNet Services
2386 588 835 AT&T Data Communications Serv
4323 505 1091 Time Warner Telecom
9583 463 641 Sify Limited
27364 450 465 Armstrong Cable Services
4766 400 584 Korea Telecom (KIX)
5668 400 474 CenturyTel Internet Holdings,
1239 376 911 Sprint
702 367 604 UUNET - Commercial IP service
6198 336 469 BellSouth Network Solutions,
6467 313 422 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 12:1507 13:1 15:9 16:2
17:3 18:4 20:4 24:745 32:64 33:4
38:102 40:55 44:3 47:2 52:3 55:2
56:3 57:23 58:5 59:14 60:25 61:739
62:546 63:1873 64:2649 65:2077 66:2732 67:509
68:506 69:954 70:76 71:5 72:117 80:538
81:491 82:387 83:256 84:124 85:202 128:141
129:156 130:90 131:280 132:34 133:1 134:144
135:40 136:190 137:66 138:159 139:50 140:193
141:104 142:139 143:130 144:171 145:45 146:281
147:101 148:293 149:167 150:97 151:63 152:107
153:86 154:4 155:143 156:68 157:87 158:167
159:168 160:72 161:60 162:200 163:84 164:214
165:161 166:151 167:230 168:418 169:137 170:306
171:8 172:1 192:5659 193:3108 194:2317 195:1615
196:621 198:3920 199:3266 200:4059 201:59 202:5372
203:6144 204:3771 205:2057 206:2396 207:2714 208:2071
209:3255 210:1647 211:828 212:1186 213:1280 214:241
215:31 216:3691 217:1144 218:190 219:102 220:370
221:129 222:73
End of report
