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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 27 Apr, 2005
Analysis Summary
----------------
BGP routing table entries examined: 160841
Prefixes after maximum aggregation: 93467
Unique aggregates announced to Internet: 77444
Total ASes present in the Internet Routing Table: 19498
Origin-only ASes present in the Internet Routing Table: 16962
Origin ASes announcing only one prefix: 7945
Transit ASes present in the Internet Routing Table: 2536
Transit-only ASes present in the Internet Routing Table: 66
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: 16
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1402267712
Equivalent to 83 /8s, 148 /16s and 232 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 75224
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32901
Total APNIC prefixes after maximum aggregation: 15444
Prefixes being announced from the APNIC address blocks: 30836
Unique aggregates announced from the APNIC address blocks: 15542
APNIC Region origin ASes present in the Internet Routing Table: 2247
APNIC Region origin ASes announcing only one prefix: 658
APNIC Region transit ASes present in the Internet Routing Table: 343
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 182027904
Equivalent to 10 /8s, 217 /16s and 134 /24s
Percentage of available APNIC address space announced: 67.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 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: 87271
Total ARIN prefixes after maximum aggregation: 53171
Prefixes being announced from the ARIN address blocks: 68069
Unique aggregates announced from the ARIN address blocks: 25034
ARIN Region origin ASes present in the Internet Routing Table: 9891
ARIN Region origin ASes announcing only one prefix: 3594
ARIN Region transit ASes present in the Internet Routing Table: 932
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 247086592
Equivalent to 14 /8s, 186 /16s and 62 /24s
Percentage of available ARIN address space announced: 70.1
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: 30556
Total RIPE prefixes after maximum aggregation: 21123
Prefixes being announced from the RIPE address blocks: 27562
Unique aggregates announced from the RIPE address blocks: 18380
RIPE Region origin ASes present in the Internet Routing Table: 6586
RIPE Region origin ASes announcing only one prefix: 3474
RIPE Region transit ASes present in the Internet Routing Table: 1104
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 201957312
Equivalent to 12 /8s, 9 /16s and 159 /24s
Percentage of available RIPE address space announced: 70.8
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: 8667
Total LACNIC prefixes after maximum aggregation: 3023
Prefixes being announced from the LACNIC address blocks: 7078
Unique aggregates announced from the LACNIC address blocks: 4138
LACNIC Region origin ASes present in the Internet Routing Table: 610
LACNIC Region origin ASes announcing only one prefix: 192
LACNIC Region transit ASes present in the Internet Routing Table: 113
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 18440960
Equivalent to 1 /8s, 25 /16s and 99 /24s
Percentage of available LACNIC address space announced: 55.0
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: 1430
Total AfriNIC prefixes after maximum aggregation: 706
Prefixes being announced from the AfriNIC address blocks: 940
Unique aggregates announced from the AfriNIC address blocks: 745
AfriNIC Region origin ASes present in the Internet Routing Table: 100
AfriNIC Region origin ASes announcing only one prefix: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2211072
Equivalent to 0 /8s, 33 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 6.6
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 905 5115 185 CHINANET-BACKBONE
1221 772 1192 549 Telstra Pty Ltd
9583 724 52 69 Sify Limited
4766 584 3413 275 Korea Telecom (KIX)
4755 542 243 112 Videsh Sanchar Nigam Ltd. Aut
7545 488 86 72 TPG Internet Pty Ltd
17676 430 6508 72 Softbank BB Corp.
9443 369 77 75 Primus Telecommunications
9929 358 189 45 China Netcom Corp.
2907 345 1838 319 SINET Japan
17557 320 23 154 Pakistan Telecom
10036 313 28 284 C&M Communication Co. Ltd.
4808 309 251 169 CNCGROUP IP network: China169
7474 298 268 209 SingTel Optus Pty Ltd
9498 284 82 52 BHARTI BT INTERNET LTD.
4802 279 47 164 Wantree Development
2764 260 238 198 AAPT Limited
703 257 279 211 UUNET - Commercial IP service
17974 245 65 14 PT TELEKOMUNIKASI INDONESIA
9800 242 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1484 6515 958 AT&T WorldNet Services
174 1138 5604 970 Cogent Communications
721 1115 21747 312 DLA Systems Automation Center
4323 1105 665 225 Time Warner Telecom
701 1005 8282 858 UUNET Technologies, Inc.
1239 910 2874 659 Sprint
6197 894 380 414 BellSouth Network Solutions,
2386 841 532 623 AT&T Data Communications Serv
18566 792 224 7 Covad Communications
209 653 3458 494 Qwest
20115 608 503 307 Charter Communications
3356 583 10836 437 Level 3 Communications, LLC
3561 542 2361 415 Savvis
27364 534 43 18 Armstrong Cable Services
852 530 1095 393 Telus Advanced Communications
3602 506 122 94 Sprint Canada, Inc.
5668 486 115 25 CenturyTel Internet Holdings,
22773 479 1188 21 Cox Communications, Inc.
6198 462 439 207 BellSouth Network Solutions,
7132 443 8782 380 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 2002 485 UUNET - Commercial IP service
3320 303 2993 237 Deutsche Telekom AG
3301 296 1116 286 TeliaNet Sweden
8220 272 469 266 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 232 491 227 Song Networks
8708 227 251 209 Romania Data Systems S.A.
1257 199 727 175 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 167 1472 73 TELECOM ITALIA
6746 164 47 143 Dynamic Network Technologies,
8866 162 21 12 Bulgarian Telecommunication C
719 159 340 101 LANLINK autonomous system
3300 152 184 85 AUCS Communications Services
5400 145 284 129 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 138 513 27 UPC Distribution Services
2856 128 2305 115 BTnet UK Regional network
9051 128 8 34 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 373 598 147 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 223 99 54 Servicios Alestra S.A de C.V
6147 197 102 20 Telefonica Del Peru
19632 190 14 7 Metropolis Intercom S.A.
11664 155 19 22 Keytech SA
7303 147 68 21 Telecom Argentina Stet-France
14117 135 8 4 Telefonica del Sur S.A.
6505 130 90 87 Global One Communicaoes Ltda
22047 123 96 6 VTR PUNTO NET S.A.
11556 110 55 6 Cable-Wireless Panama
18822 105 7 15 TELEFONICA MANQUEHUE
6503 104 146 74 AVANTEL, S.A.
13999 102 52 9 Mega Cable S.A. de C.V.
10481 101 40 7 Prima S.A.
19169 97 6 15 Telconet
23216 89 24 22 RAMtelecom Telecomunicaciones
21826 88 12 21 INTERCABLE
11311 85 8 21 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 635 225 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 75 267 69 The Internetworking Company o
8452 64 20 5 TEDATA
24835 61 34 6 RAYA Telecom - Egypt
9129 42 3 3 UUNET Kenya
12455 42 7 4 Jambonet Autonomous system
5713 35 141 28 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
8524 25 1 4 AUCEGYPT Autonomous System
15475 23 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
7460 18 3 5 LIA Internet Access
2609 17 26 3 Tunisia BackBone AS
12258 17 3 11 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
15808 16 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65531 *
4323 1105 880 Time Warner Telecom
721 1115 803 DLA Systems Automation Center
18566 792 785 Covad Communications
4134 905 720 CHINANET-BACKBONE
9583 724 655 Sify Limited
27364 534 516 Armstrong Cable Services
6197 894 480 BellSouth Network Solutions,
5668 486 461 CenturyTel Internet Holdings,
22773 479 458 Cox Communications, Inc.
4755 542 430 Videsh Sanchar Nigam Ltd. Aut
7545 488 416 TPG Internet Pty Ltd
3602 506 412 Sprint Canada, Inc.
6467 434 399 E.Spire Communications, Inc.
17676 430 358 Softbank BB Corp.
6140 399 327 ImpSat
9929 358 313 China Netcom Corp.
4766 584 309 Korea Telecom (KIX)
20115 608 301 Charter Communications
9443 369 294 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
33772 UNALLOCATED 196.1.53.0/24 11908 Verestar, Inc.
33772 UNALLOCATED 196.1.54.0/24 11908 Verestar, Inc.
33772 UNALLOCATED 196.1.55.0/24 11908 Verestar, Inc.
30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM
33771 UNALLOCATED 196.201.208.0/23 12491 IPPlanet
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
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
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
172.122.28.0/24 210 Utah Education Network
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 /11:15 /12:68
/13:153 /14:309 /15:588 /16:8389 /17:2533 /18:4366
/19:10219 /20:11019 /21:8905 /22:12221 /23:13270 /24:87856
/25:289 /26:262 /27:140 /28:74 /29:38 /30:68
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 776 792 Covad Communications
6197 733 894 BellSouth Network Solutions,
7018 668 1484 AT&T WorldNet Services
2386 595 841 AT&T Data Communications Serv
9583 540 724 Sify Limited
27364 523 534 Armstrong Cable Services
4323 516 1105 Time Warner Telecom
5668 404 486 CenturyTel Internet Holdings,
4766 401 584 Korea Telecom (KIX)
1239 383 910 Sprint
702 365 593 UUNET - Commercial IP service
6198 337 462 BellSouth Network Solutions,
6467 315 434 E.Spire Communications, Inc.
10036 313 313 C&M Communication Co. Ltd.
6517 295 318 Yipes Communications, Inc.
7011 295 345 Citizens Utilities
9929 282 358 China Netcom Corp.
11456 274 315 Carolina Online, Inc.
15270 254 274 PaeTec.net -a division of Pae
3320 248 303 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:12 12:1518 13:1 15:9 16:2
17:3 18:4 20:4 24:934 30:2 32:69
33:4 38:109 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:43 59:23 60:21
61:754 62:585 63:1873 64:2678 65:2079 66:2784
67:553 68:515 69:997 70:93 71:5 72:154
80:559 81:538 82:396 83:241 84:159 85:177
86:2 128:147 129:158 130:88 131:277 132:34
133:1 134:148 135:39 136:191 137:65 138:172
139:54 140:193 141:106 142:139 143:133 144:167
145:32 146:280 147:104 148:293 149:169 150:97
151:63 152:107 153:87 154:5 155:143 156:77
157:93 158:167 159:173 160:75 161:60 162:203
163:84 164:207 165:174 166:154 167:231 168:418
169:139 170:315 171:8 172:2 192:5691 193:3176
194:2336 195:1546 196:652 198:3903 199:3280 200:4036
201:116 202:5532 203:6153 204:3804 205:2025 206:2454
207:2752 208:2091 209:3276 210:1704 211:838 212:1186
213:1278 214:273 215:32 216:3571 217:1133 218:191
219:107 220:364 221:197 222:92
End of report
