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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 09 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157241
Prefixes after maximum aggregation: 91945
Unique aggregates announced to Internet: 75867
Total ASes present in the Internet Routing Table: 19095
Origin-only ASes present in the Internet Routing Table: 16616
Origin ASes announcing only one prefix: 7745
Transit ASes present in the Internet Routing Table: 2479
Transit-only ASes present in the Internet Routing Table: 82
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: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1382032420
Equivalent to 82 /8s, 96 /16s and 36 /24s
Percentage of available address space announced: 37.3
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73286
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31480
Total APNIC prefixes after maximum aggregation: 15211
Prefixes being announced from the APNIC address blocks: 29522
Unique aggregates announced from the APNIC address blocks: 15180
APNIC Region origin ASes present in the Internet Routing Table: 2216
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 176518336
Equivalent to 10 /8s, 133 /16s and 116 /24s
Percentage of available APNIC address space announced: 65.5
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: 87629
Total ARIN prefixes after maximum aggregation: 53066
Prefixes being announced from the ARIN address blocks: 66838
Unique aggregates announced from the ARIN address blocks: 24508
ARIN Region origin ASes present in the Internet Routing Table: 9917
ARIN Region origin ASes announcing only one prefix: 3581
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 240619264
Equivalent to 14 /8s, 87 /16s and 143 /24s
Percentage of available ARIN address space announced: 71.7
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: 29878
Total RIPE prefixes after maximum aggregation: 20542
Prefixes being announced from the RIPE address blocks: 26815
Unique aggregates announced from the RIPE address blocks: 17771
RIPE Region origin ASes present in the Internet Routing Table: 6368
RIPE Region origin ASes announcing only one prefix: 3368
RIPE Region transit ASes present in the Internet Routing Table: 1064
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 193557584
Equivalent to 11 /8s, 137 /16s and 116 /24s
Percentage of available RIPE address space announced: 67.9
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, 33792-34815
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: 6875
Total LACNIC prefixes after maximum aggregation: 2417
Prefixes being announced from the LACNIC address blocks: 6830
Unique aggregates announced from the LACNIC address blocks: 4003
LACNIC Region origin ASes present in the Internet Routing Table: 421
LACNIC Region origin ASes announcing only one prefix: 123
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17674752
Equivalent to 1 /8s, 13 /16s and 178 /24s
Percentage of available LACNIC address space announced: 52.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1364
Total AfriNIC prefixes after maximum aggregation: 709
Prefixes being announced from the AfriNIC address blocks: 895
Unique aggregates announced from the AfriNIC address blocks: 721
AfriNIC Region origin ASes present in the Internet Routing Table: 96
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: 2177536
Equivalent to 0 /8s, 33 /16s and 58 /24s
Percentage of available AfriNIC address space announced: 13.0
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 887 4720 175 Data Communications Bureau
1221 786 1188 558 Telstra Pty Ltd
9583 600 49 19 Satyam Infoway Ltd.,
4766 589 3416 279 Korea Internet Exchange for "
4755 491 241 104 Videsh Sanchar Nigam Ltd. Aut
7545 476 86 76 TPG Internet Pty Ltd
17676 407 6140 72 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 361 167 39 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 328 25 155 Pakistan Telecom
10036 300 27 273 C&M Communication Co. Ltd.
7474 288 283 210 Optus Communications Pty Ltd
4802 283 47 167 Wantree Development
703 272 355 214 UUNET
2764 255 237 203 connect.com.au pty ltd
9498 254 81 54 BHARTI BT INTERNET LTD.
4808 242 234 130 CHINANET core WAN North
9800 238 390 72 CHINA UNICOM
17974 231 54 86 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1468 6563 964 AT&T WorldNet Services
721 1121 21763 314 DLA Systems Automation Center
4323 1050 668 220 Time Warner Telecom
701 1031 8290 876 UUNET Technologies, Inc.
1239 926 2872 659 Sprint
6197 874 382 409 BellSouth Network Solutions,
2386 825 498 612 AT&T Data Communications Serv
174 773 5530 675 PSINet Inc.
18566 773 208 6 Covad Communications
209 639 3466 502 Qwest
3356 581 10863 431 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 560 2373 415 Cable & Wireless USA
852 531 1095 400 Telus Advanced Communications
3602 499 120 93 Sprint Canada, Inc.
6478 499 831 101 AT&T Worldnet Services
22773 478 1090 24 Cox Communications, Inc. Atla
6198 465 540 195 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 457 93 22 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2006 497 UUNET - Commercial IP service
3320 294 2992 229 Deutsche Telekom AG
3301 290 1112 278 TeliaNet Sweden
8220 276 466 270 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 228 472 223 Song Networks
8708 222 121 200 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
3215 205 1058 80 France Telecom Transpac
1257 197 710 174 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 18 Bulgarian Telecommunication C
9121 169 230 30 TTnet Autonomous System
3269 165 1456 72 TELECOM ITALIA
3300 162 184 82 AUCS Communications Services
6746 162 47 143 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
6830 142 529 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
6140 360 140 70 ImpSat
8151 337 505 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 221 99 54 Servicios Alestra S.A de C.V
6147 206 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
14117 118 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
6503 104 129 74 AVANTEL, S.A.
13999 98 52 9 Mega Cable S.A. de C.V.
11556 97 48 3 Cable-Wireless Panama
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
5639 82 12 9 Telecommunications Services o
10481 79 32 7 Prima S.A.
10292 78 6 20 TELECOMMUNICATIONS OF JAMAICA
15311 77 24 36 Telefonica Empresas
4270 76 18 9 Red de Interconexion Universi
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
2018 90 295 87 Tertiary Education Network
20928 88 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 55 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
9129 39 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
12455 31 7 5 Jambonet Autonomous system
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
12258 18 3 12 Vodacom Internet Company
8346 17 10 11 SONATEL-AS Autonomous System
21280 16 2 3 Swift Global Kenya Ltd.Is an
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 5 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1050 830 Time Warner Telecom
721 1121 807 DLA Systems Automation Center
18566 773 767 Covad Communications
4134 887 712 Data Communications Bureau
9583 600 581 Satyam Infoway Ltd.,
6197 874 465 BellSouth Network Solutions,
22773 478 454 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 457 435 Century Telephone
3602 499 406 Sprint Canada, Inc.
7545 476 400 TPG Internet Pty Ltd
6478 499 398 AT&T Worldnet Services
4755 491 387 Videsh Sanchar Nigam Ltd. Aut
17676 407 335 XTAGE CORPORATION
6467 359 326 E.Spire Communications, Inc.
9929 361 322 China Netcom Corp.
4766 589 310 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
6140 360 290 ImpSat
20115 579 279 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
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
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
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
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 /12:62
/13:148 /14:306 /15:569 /16:8315 /17:2444 /18:4166
/19:10100 /20:10758 /21:8636 /22:11961 /23:13077 /24:85839
/25:260 /26:250 /27:105 /28:50 /29:25 /30:88
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 758 773 Covad Communications
6197 715 874 BellSouth Network Solutions,
7018 637 1468 AT&T WorldNet Services
2386 587 825 AT&T Data Communications Serv
4323 483 1050 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 424 600 Satyam Infoway Ltd.,
4766 405 589 Korea Internet Exchange for "
5668 383 457 Century Telephone
1239 373 926 Sprint
702 369 607 UUNET - Commercial IP service
6198 335 465 BellSouth Network Solutions,
10036 300 300 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
9929 286 361 China Netcom Corp.
6467 270 359 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 247 1031 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1500 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:64 33:5
38:98 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:2 59:6 60:21 61:717
62:512 63:1875 64:2565 65:2053 66:2709 67:523
68:507 69:906 70:71 71:4 72:90 80:544
81:529 82:335 83:265 84:131 85:161 128:141
129:161 130:87 131:280 132:35 133:1 134:142
135:31 136:189 137:66 138:157 139:53 140:197
141:102 142:139 143:129 144:178 145:45 146:280
147:100 148:271 149:164 150:97 151:63 152:108
153:85 154:3 155:141 156:69 157:83 158:154
159:168 160:72 161:60 162:435 163:86 164:209
165:163 166:128 167:227 168:400 169:133 170:311
171:9 192:5661 193:3118 194:2285 195:1586 196:627
198:3902 199:3304 200:4005 201:56 202:5229 203:6091
204:3681 205:2010 206:2350 207:2720 208:2085 209:3161
210:1607 211:802 212:1175 213:1263 214:243 215:31
216:3671 217:1096 218:190 219:139 220:370 221:94
222:75
End of report
