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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 13 Jul, 2005
Analysis Summary
----------------
BGP routing table entries examined: 166823
Prefixes after maximum aggregation: 96283
Unique aggregates announced to Internet: 80816
Total ASes present in the Internet Routing Table: 20028
Origin-only ASes present in the Internet Routing Table: 17453
Origin ASes announcing only one prefix: 8196
Transit ASes present in the Internet Routing Table: 2575
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1393385568
Equivalent to 83 /8s, 13 /16s and 96 /24s
Percentage of available address space announced: 37.6
Percentage of allocated address space announced: 56.6
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79237
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34862
Total APNIC prefixes after maximum aggregation: 16167
Prefixes being announced from the APNIC address blocks: 32747
Unique aggregates announced from the APNIC address blocks: 16595
APNIC Region origin ASes present in the Internet Routing Table: 2311
APNIC Region origin ASes announcing only one prefix: 674
APNIC Region transit ASes present in the Internet Routing Table: 357
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 190272896
Equivalent to 11 /8s, 87 /16s and 85 /24s
Percentage of available APNIC address space announced: 70.6
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: 89316
Total ARIN prefixes after maximum aggregation: 54359
Prefixes being announced from the ARIN address blocks: 69770
Unique aggregates announced from the ARIN address blocks: 25731
ARIN Region origin ASes present in the Internet Routing Table: 10057
ARIN Region origin ASes announcing only one prefix: 3697
ARIN Region transit ASes present in the Internet Routing Table: 939
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 252274432
Equivalent to 15 /8s, 9 /16s and 103 /24s
Percentage of available ARIN address space announced: 62.7
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, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31939
Total RIPE prefixes after maximum aggregation: 21851
Prefixes being announced from the RIPE address blocks: 28950
Unique aggregates announced from the RIPE address blocks: 19405
RIPE Region origin ASes present in the Internet Routing Table: 6835
RIPE Region origin ASes announcing only one prefix: 3598
RIPE Region transit ASes present in the Internet Routing Table: 1115
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 211599808
Equivalent to 12 /8s, 156 /16s and 193 /24s
Percentage of available RIPE address space announced: 63.1
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, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9054
Total LACNIC prefixes after maximum aggregation: 3133
Prefixes being announced from the LACNIC address blocks: 7439
Unique aggregates announced from the LACNIC address blocks: 4336
LACNIC Region origin ASes present in the Internet Routing Table: 624
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 119
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20405024
Equivalent to 1 /8s, 55 /16s and 91 /24s
Percentage of available LACNIC address space announced: 30.4
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1628
Total AfriNIC prefixes after maximum aggregation: 773
Prefixes being announced from the AfriNIC address blocks: 1024
Unique aggregates announced from the AfriNIC address blocks: 788
AfriNIC Region origin ASes present in the Internet Routing Table: 131
AfriNIC Region origin ASes announcing only one prefix: 38
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2315264
Equivalent to 0 /8s, 35 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 6.9
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 924 5534 195 CHINANET-BACKBONE
1221 760 1454 535 Telstra Pty Ltd
9583 757 55 84 Sify Limited
4755 655 248 146 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 504 106 73 TPG Internet Pty Ltd
17676 437 6590 76 Softbank BB Corp.
9443 372 77 75 Primus Telecommunications
9929 368 223 49 China Netcom Corp.
10036 352 65 311 C&M Communication Co. Ltd.
2907 337 1789 314 SINET Japan
17557 327 23 154 Pakistan Telecom
9498 323 83 60 BHARTI BT INTERNET LTD.
7474 310 272 215 SingTel Optus Pty Ltd
4808 292 244 164 CNCGROUP IP network: China169
4802 287 50 164 Wantree Development
9837 279 80 183 Powertel Ltd
18302 277 109 154 SK Global co., Ltd
17974 266 65 14 PT TELEKOMUNIKASI INDONESIA
17488 258 15 18 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6433 979 AT&T WorldNet Services
174 1143 5808 1064 Cogent Communications
4323 1132 664 221 Time Warner Telecom
721 1097 21787 311 DLA Systems Automation Center
701 1015 8168 858 UUNET Technologies, Inc.
6197 935 520 434 BellSouth Network Solutions,
2386 895 529 661 AT&T Data Communications Serv
1239 886 2884 638 Sprint
18566 826 224 7 Covad Communications
20115 649 497 320 Charter Communications
209 631 3507 498 Qwest
3356 561 10792 430 Level 3 Communications, LLC
19262 556 1198 117 Verizon Global Networks
27364 555 44 18 Armstrong Cable Services
3602 543 123 104 Sprint Canada, Inc.
852 542 1094 388 Telus Advanced Communications
3561 537 2384 421 Savvis
7725 500 64 17 MediaOne
22773 499 1188 23 Cox Communications, Inc.
5668 488 114 25 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 592 1999 483 UUNET - Commercial IP service
3320 303 3232 242 Deutsche Telekom AG
3301 300 1081 286 TeliaNet Sweden
8220 267 472 262 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
3246 228 467 221 Song Networks
8708 226 253 210 Romania Data Systems S.A.
1257 195 712 173 SWIPnet Swedish IP Network
5515 180 778 127 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
5400 173 286 146 BT Ignite European Backbone
6746 172 49 150 Dynamic Network Technologies,
3269 169 1520 72 TELECOM ITALIA
719 168 340 100 LANLINK autonomous system
8866 161 21 11 Bulgarian Telecommunication C
3300 154 184 87 AUCS Communications Services
6830 149 537 31 UPC Distribution Services
9121 145 270 33 TTnet Autonomous System
25186 141 145 98 France Telecom Transpac's Tra
3352 139 1272 35 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 376 599 156 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 230 99 57 Servicios Alestra S.A de C.V
11664 207 19 23 Keytech SA
6147 192 110 21 Telefonica Del Peru
14117 152 9 5 Telefonica del Sur S.A.
7303 149 69 17 Telecom Argentina Stet-France
19632 142 14 5 Metropolis Intercom S.A.
22047 132 112 7 VTR PUNTO NET S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 88 Global One Communicaoes Ltda
19169 116 7 22 Telconet
13999 111 52 9 Mega Cable S.A. de C.V.
18822 110 7 14 TELEFONICA MANQUEHUE
6503 108 147 71 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
23216 97 24 23 RAMtelecom Telecomunicaciones
5639 96 12 9 Telecommunications Services o
22927 96 73 25 TELEFONICA DE ARGENTINA
21826 95 13 20 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 264 621 222 The Internet Solution
5536 120 15 17 Internet Egypt Network
2018 95 295 86 Tertiary Education Network
8452 94 28 6 TEDATA
2905 75 266 67 The Internetworking Company o
24835 57 34 6 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
20928 46 16 2 Noor Advanced Technologies AS
9129 43 3 3 UUNET Kenya
12455 38 6 3 Jambonet Autonomous system
15475 38 84 4 Nile Online
5713 36 142 29 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
23889 20 5 9 MAURITIUS TELECOM
10798 19 1 11 Standard Bank of South Africa
21491 18 1 1 UTL On-line is RF broadband I
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 1132 911 Time Warner Telecom
18566 826 819 Covad Communications
721 1097 786 DLA Systems Automation Center
4134 924 729 CHINANET-BACKBONE
9583 757 673 Sify Limited
27364 555 537 Armstrong Cable Services
4755 655 509 Videsh Sanchar Nigam Ltd. Aut
6197 935 501 BellSouth Network Solutions,
7725 500 483 MediaOne
22773 499 476 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
19262 556 439 Verizon Global Networks
3602 543 439 Sprint Canada, Inc.
7545 504 431 TPG Internet Pty Ltd
17676 437 361 Softbank BB Corp.
6467 382 348 E.Spire Communications, Inc.
20115 649 329 Charter Communications
6140 396 320 ImpSat
9929 368 319 China Netcom Corp.
4766 591 312 Korea Telecom (KIX)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
65507 PRIVATE 200.0.64.0/24 27750 Cooperación Latino A
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
65142 PRIVATE 200.32.76.0/24 6140 ImpSat
65142 PRIVATE 200.32.77.0/24 6140 ImpSat
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.58.0/23 11664 Keytech SA
64512 PRIVATE 200.80.148.0/23 11664 Keytech SA
65201 PRIVATE 201.30.243.0/24 4230 Embratel
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
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 /8:17 /9:3 /10:8 /11:15 /12:75
/13:162 /14:313 /15:598 /16:8439 /17:2609 /18:4506
/19:10475 /20:11379 /21:9453 /22:12909 /23:13863 /24:90977
/25:355 /26:312 /27:178 /28:45 /29:27 /30:72
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 810 826 Covad Communications
6197 762 935 BellSouth Network Solutions,
7018 702 1499 AT&T WorldNet Services
2386 609 895 AT&T Data Communications Serv
9583 576 757 Sify Limited
27364 546 555 Armstrong Cable Services
4323 539 1132 Time Warner Telecom
7725 470 500 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 401 488 CenturyTel Internet Holdings,
1239 370 886 Sprint
702 365 592 UUNET - Commercial IP service
10036 342 352 C&M Communication Co. Ltd.
6198 341 465 BellSouth Network Solutions,
7011 324 375 Citizens Utilities
15270 293 318 PaeTec.net -a division of Pae
6517 292 315 Yipes Communications, Inc.
19262 285 556 Verizon Global Networks
9929 283 368 China Netcom Corp.
20115 281 649 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 9:1 12:1552 13:1 15:9
16:2 17:3 18:3 20:4 24:1182 30:2
32:69 33:3 38:135 40:54 44:3 47:2
52:4 55:2 56:3 57:23 58:152 59:52
60:62 61:793 62:626 63:1894 64:2774 65:2088
66:2876 67:607 68:550 69:1099 70:138 71:138
72:262 80:596 81:566 82:442 83:286 84:208
85:278 86:51 87:17 128:179 129:169 130:87
131:295 132:38 133:1 134:144 135:43 136:137
137:74 138:165 139:60 140:300 141:106 142:153
143:138 144:204 145:32 146:288 147:109 148:303
149:175 150:107 151:65 152:108 153:88 154:4
155:145 156:78 157:99 158:161 159:169 160:78
161:71 162:212 163:99 164:195 165:187 166:153
167:242 168:453 169:145 170:314 171:8 172:1
190:1 192:5699 193:3212 194:2423 195:1585 196:672
198:3896 199:3291 200:4039 201:201 202:5924 203:6392
204:3787 205:2018 206:2444 207:2800 208:2030 209:3296
210:1802 211:888 212:1248 213:1317 214:266 215:31
216:3481 217:1113 218:206 219:145 220:393 221:234
222:120
End of report
