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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 15 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165049
Prefixes after maximum aggregation: 95360
Unique aggregates announced to Internet: 79353
Total ASes present in the Internet Routing Table: 19851
Origin-only ASes present in the Internet Routing Table: 17287
Origin ASes announcing only one prefix: 8108
Transit ASes present in the Internet Routing Table: 2564
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 29
Prefixes from unregistered ASNs in the Routing Table: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1415447776
Equivalent to 84 /8s, 94 /16s and 4 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77858
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34127
Total APNIC prefixes after maximum aggregation: 15869
Prefixes being announced from the APNIC address blocks: 32028
Unique aggregates announced from the APNIC address blocks: 15968
APNIC Region origin ASes present in the Internet Routing Table: 2291
APNIC Region origin ASes announcing only one prefix: 671
APNIC Region transit ASes present in the Internet Routing Table: 346
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186703744
Equivalent to 11 /8s, 32 /16s and 223 /24s
Percentage of available APNIC address space announced: 69.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
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: 88877
Total ARIN prefixes after maximum aggregation: 53992
Prefixes being announced from the ARIN address blocks: 69388
Unique aggregates announced from the ARIN address blocks: 25370
ARIN Region origin ASes present in the Internet Routing Table: 9998
ARIN Region origin ASes announcing only one prefix: 3663
ARIN Region transit ASes present in the Internet Routing Table: 937
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 249471744
Equivalent to 14 /8s, 222 /16s and 163 /24s
Percentage of available ARIN address space announced: 70.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31400
Total RIPE prefixes after maximum aggregation: 21611
Prefixes being announced from the RIPE address blocks: 28454
Unique aggregates announced from the RIPE address blocks: 19112
RIPE Region origin ASes present in the Internet Routing Table: 6745
RIPE Region origin ASes announcing only one prefix: 3548
RIPE Region transit ASes present in the Internet Routing Table: 1117
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 208561984
Equivalent to 12 /8s, 110 /16s and 103 /24s
Percentage of available RIPE address space announced: 73.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 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: 8961
Total LACNIC prefixes after maximum aggregation: 3114
Prefixes being announced from the LACNIC address blocks: 7345
Unique aggregates announced from the LACNIC address blocks: 4276
LACNIC Region origin ASes present in the Internet Routing Table: 624
LACNIC Region origin ASes announcing only one prefix: 191
LACNIC Region transit ASes present in the Internet Routing Table: 114
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19124000
Equivalent to 1 /8s, 35 /16s and 207 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1661
Total AfriNIC prefixes after maximum aggregation: 774
Prefixes being announced from the AfriNIC address blocks: 1014
Unique aggregates announced from the AfriNIC address blocks: 772
AfriNIC Region origin ASes present in the Internet Routing Table: 128
AfriNIC Region origin ASes announcing only one prefix: 35
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2289152
Equivalent to 0 /8s, 34 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 6.8
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 910 5147 191 CHINANET-BACKBONE
1221 762 1454 544 Telstra Pty Ltd
9583 754 55 63 Sify Limited
4755 609 246 125 Videsh Sanchar Nigam Ltd. Aut
4766 596 3413 279 Korea Telecom (KIX)
7545 501 104 71 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 374 77 76 Primus Telecommunications
9929 363 221 48 China Netcom Corp.
10036 340 56 306 C&M Communication Co. Ltd.
2907 339 1805 316 SINET Japan
9498 324 83 62 BHARTI BT INTERNET LTD.
17557 317 22 152 Pakistan Telecom
7474 313 272 217 SingTel Optus Pty Ltd
4808 305 250 171 CNCGROUP IP network: China169
4802 280 48 160 Wantree Development
18302 270 108 146 SK Global co., Ltd
17974 263 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 277 208 UUNET - Commercial IP service
2764 253 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6461 977 AT&T WorldNet Services
174 1345 5792 1073 Cogent Communications
4323 1117 647 217 Time Warner Telecom
721 1112 21787 313 DLA Systems Automation Center
701 1009 8168 853 UUNET Technologies, Inc.
6197 924 522 429 BellSouth Network Solutions,
1239 891 2871 644 Sprint
2386 860 533 640 AT&T Data Communications Serv
18566 817 224 7 Covad Communications
209 629 3506 495 Qwest
20115 615 492 316 Charter Communications
27364 565 43 18 Armstrong Cable Services
3356 557 10821 427 Level 3 Communications, LLC
3602 543 123 100 Sprint Canada, Inc.
3561 538 2385 422 Savvis
852 527 1095 390 Telus Advanced Communications
22773 493 1188 23 Cox Communications, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
7725 485 60 15 MediaOne
6198 466 417 219 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 596 2001 489 UUNET - Commercial IP service
3320 305 3232 241 Deutsche Telekom AG
3301 296 1081 284 TeliaNet Sweden
8220 270 469 266 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 233 254 216 Romania Data Systems S.A.
3246 225 488 220 Song Networks
1257 198 712 174 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 169 1520 72 TELECOM ITALIA
6746 169 47 147 Dynamic Network Technologies,
719 168 340 101 LANLINK autonomous system
5400 164 285 137 BT Ignite European Backbone
8866 158 21 11 Bulgarian Telecommunication C
3300 153 184 85 AUCS Communications Services
6830 138 529 28 UPC Distribution Services
25186 135 137 95 France Telecom Transpac's Tra
9121 133 270 39 TTnet Autonomous System
8551 132 115 23 Bezeq International
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 381 600 150 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 221 98 53 Servicios Alestra S.A de C.V
6147 197 110 21 Telefonica Del Peru
11664 197 19 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 149 68 21 Telecom Argentina Stet-France
6505 132 90 89 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
11556 130 64 3 Cable-Wireless Panama
13999 110 52 9 Mega Cable S.A. de C.V.
19632 109 14 5 Metropolis Intercom S.A.
18822 107 7 13 TELEFONICA MANQUEHUE
6503 106 146 72 AVANTEL, S.A.
19169 105 7 20 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
21826 95 13 20 INTERCABLE
5639 94 12 9 Telecommunications Services o
23216 93 24 23 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 119 15 17 Internet Egypt Network
20928 96 16 2 Noor Advanced Technologies AS
2018 91 295 86 Tertiary Education Network
8452 83 28 6 TEDATA
2905 74 266 66 The Internetworking Company o
24835 62 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 45 3 3 UUNET Kenya
12455 41 7 4 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
23889 19 5 8 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1117 900 Time Warner Telecom
18566 817 810 Covad Communications
721 1112 799 DLA Systems Automation Center
4134 910 719 CHINANET-BACKBONE
9583 754 691 Sify Limited
27364 565 547 Armstrong Cable Services
6197 924 495 BellSouth Network Solutions,
4755 609 484 Videsh Sanchar Nigam Ltd. Aut
22773 493 470 Cox Communications, Inc.
7725 485 470 MediaOne
5668 488 463 CenturyTel Internet Holdings,
3602 543 443 Sprint Canada, Inc.
7545 501 430 TPG Internet Pty Ltd
6467 429 395 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 400 327 ImpSat
4766 596 317 Korea Telecom (KIX)
9929 363 315 China Netcom Corp.
20115 615 299 Charter Communications
9443 374 298 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
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
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
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
50.160.0.0/13 1221 Telstra Pty Ltd
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
192.169.0.0/23 3970 RGnet, Inc.
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 /11:15 /12:71
/13:158 /14:308 /15:605 /16:8426 /17:2579 /18:4431
/19:10388 /20:11273 /21:9233 /22:12726 /23:13783 /24:90050
/25:340 /26:297 /27:159 /28:44 /29:30 /30:70
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 801 817 Covad Communications
6197 754 924 BellSouth Network Solutions,
7018 691 1500 AT&T WorldNet Services
2386 610 860 AT&T Data Communications Serv
9583 571 754 Sify Limited
27364 556 565 Armstrong Cable Services
4323 538 1117 Time Warner Telecom
7725 456 485 MediaOne
4766 414 596 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 378 891 Sprint
702 368 596 UUNET - Commercial IP service
6198 340 466 BellSouth Network Solutions,
10036 332 340 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 297 429 E.Spire Communications, Inc.
9929 282 363 China Netcom Corp.
15270 281 302 PaeTec.net -a division of Pae
174 273 1345 Cogent Communications
11456 272 311 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1557 13:1 15:9 16:2
17:3 18:3 20:4 24:1167 30:2 32:69
33:4 38:128 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:90 59:44 60:55
61:813 62:621 63:1876 64:2746 65:2075 66:2889
67:579 68:530 69:1043 70:114 71:9 72:223
80:591 81:553 82:421 83:276 84:203 85:251
86:21 128:184 129:172 130:88 131:295 132:37
133:1 134:145 135:40 136:133 137:69 138:167
139:59 140:193 141:102 142:148 143:145 144:194
145:33 146:287 147:107 148:301 149:172 150:105
151:65 152:107 153:87 154:5 155:142 156:78
157:97 158:160 159:172 160:75 161:67 162:325
163:92 164:211 165:177 166:159 167:238 168:426
169:140 170:311 171:8 172:1 192:5723 193:3189
194:2400 195:1554 196:661 198:3930 199:3291 200:4009
201:158 202:5786 203:6354 204:3773 205:2005 206:2526
207:2843 208:2058 209:3314 210:1711 211:854 212:1219
213:1321 214:264 215:32 216:3486 217:1152 218:207
219:108 220:387 221:229 222:105
End of report
