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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 15 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157268
Prefixes after maximum aggregation: 92077
Unique aggregates announced to Internet: 75467
Total ASes present in the Internet Routing Table: 19129
Origin-only ASes present in the Internet Routing Table: 16646
Origin ASes announcing only one prefix: 7769
Transit ASes present in the Internet Routing Table: 2483
Transit-only ASes present in the Internet Routing Table: 78
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: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1384792356
Equivalent to 82 /8s, 138 /16s and 65 /24s
Percentage of available address space announced: 37.4
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73238
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31523
Total APNIC prefixes after maximum aggregation: 15141
Prefixes being announced from the APNIC address blocks: 29556
Unique aggregates announced from the APNIC address blocks: 15015
APNIC Region origin ASes present in the Internet Routing Table: 2215
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 177240768
Equivalent to 10 /8s, 144 /16s and 122 /24s
Percentage of available APNIC address space announced: 65.8
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: 87510
Total ARIN prefixes after maximum aggregation: 53196
Prefixes being announced from the ARIN address blocks: 66930
Unique aggregates announced from the ARIN address blocks: 24356
ARIN Region origin ASes present in the Internet Routing Table: 9928
ARIN Region origin ASes announcing only one prefix: 3587
ARIN Region transit ASes present in the Internet Routing Table: 948
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 242515712
Equivalent to 14 /8s, 116 /16s and 127 /24s
Percentage of available ARIN address space announced: 72.3
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: 29953
Total RIPE prefixes after maximum aggregation: 20625
Prefixes being announced from the RIPE address blocks: 26891
Unique aggregates announced from the RIPE address blocks: 17838
RIPE Region origin ASes present in the Internet Routing Table: 6394
RIPE Region origin ASes announcing only one prefix: 3386
RIPE Region transit ASes present in the Internet Routing Table: 1073
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 194073552
Equivalent to 11 /8s, 145 /16s and 83 /24s
Percentage of available RIPE address space announced: 68.0
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: 6898
Total LACNIC prefixes after maximum aggregation: 2408
Prefixes being announced from the LACNIC address blocks: 6838
Unique aggregates announced from the LACNIC address blocks: 4015
LACNIC Region origin ASes present in the Internet Routing Table: 423
LACNIC Region origin ASes announcing only one prefix: 124
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17702144
Equivalent to 1 /8s, 14 /16s and 29 /24s
Percentage of available LACNIC address space announced: 52.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1365
Total AfriNIC prefixes after maximum aggregation: 707
Prefixes being announced from the AfriNIC address blocks: 905
Unique aggregates announced from the AfriNIC address blocks: 726
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 23
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: 2185984
Equivalent to 0 /8s, 33 /16s and 91 /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 891 4721 175 Data Communications Bureau
1221 786 1188 558 Telstra Pty Ltd
9583 614 50 26 Satyam Infoway Ltd.,
4766 584 3416 278 Korea Internet Exchange for "
4755 478 241 99 Videsh Sanchar Nigam Ltd. Aut
7545 477 86 69 TPG Internet Pty Ltd
17676 412 6220 75 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 359 175 41 China Netcom Corp.
17557 352 25 155 Pakistan Telecom
2907 348 1839 322 SINET Japan
10036 300 27 273 C&M Communication Co. Ltd.
4808 299 245 160 CHINANET core WAN North
7474 290 283 210 Optus Communications Pty Ltd
4802 282 47 166 Wantree Development
703 260 332 217 UUNET
2764 255 237 203 connect.com.au pty ltd
9498 254 82 53 BHARTI BT INTERNET LTD.
9800 239 390 73 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 1470 6564 966 AT&T WorldNet Services
721 1120 21763 314 DLA Systems Automation Center
4323 1069 668 221 Time Warner Telecom
701 1023 8271 871 UUNET Technologies, Inc.
1239 912 2872 661 Sprint
6197 876 383 410 BellSouth Network Solutions,
174 874 5537 757 PSINet Inc.
2386 831 498 614 AT&T Data Communications Serv
18566 774 208 6 Covad Communications
209 637 3482 502 Qwest
20115 582 482 303 Charter Communications
3356 578 10863 429 Level 3 Communications, LLC
3561 557 2373 415 Cable & Wireless USA
852 531 1095 400 Telus Advanced Communications
3602 501 121 93 Sprint Canada, Inc.
6478 498 832 107 AT&T Worldnet Services
22773 479 1090 24 Cox Communications, Inc. Atla
6198 467 567 189 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 459 115 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2005 497 UUNET - Commercial IP service
3320 294 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 228 472 223 Song Networks
8708 224 121 202 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
1257 197 710 174 SWIPnet Swedish IP Network
9121 184 235 40 TTnet Autonomous System
5515 177 777 127 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 18 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
6746 162 47 143 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
3300 154 184 85 AUCS Communications Services
5400 145 283 128 BT Ignite European Backbone
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 361 140 71 ImpSat
8151 337 489 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 118 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
6503 101 145 73 AVANTEL, S.A.
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
6535 87 7 23 Chilesat Servicios Empresari
11311 86 8 22 Sinectis S.A.
5639 83 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
10292 79 6 18 TELECOMMUNICATIONS OF JAMAICA
15311 77 24 36 Telefonica Empresas
7738 76 298 16 Telecomunicacoes da Bahia 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 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 30 7 4 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 17 2 3 Swift Global Kenya Ltd.Is an
15475 16 84 4 Nile Online
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
4323 1069 848 Time Warner Telecom
721 1120 806 DLA Systems Automation Center
18566 774 768 Covad Communications
4134 891 716 Data Communications Bureau
9583 614 588 Satyam Infoway Ltd.,
6197 876 466 BellSouth Network Solutions,
22773 479 455 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 459 442 Century Telephone
3602 501 408 Sprint Canada, Inc.
7545 477 408 TPG Internet Pty Ltd
6478 498 391 AT&T Worldnet Services
4755 478 379 Videsh Sanchar Nigam Ltd. Aut
6467 391 358 E.Spire Communications, Inc.
17676 412 337 XTAGE CORPORATION
9929 359 318 China Netcom Corp.
4766 584 306 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
6140 361 290 ImpSat
20115 582 279 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
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 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
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
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 /8:20 /9:3 /10:8 /11:14 /12:62
/13:149 /14:306 /15:572 /16:8328 /17:2453 /18:4180
/19:10106 /20:10820 /21:8675 /22:11988 /23:13133 /24:85630
/25:262 /26:249 /27:102 /28:52 /29:26 /30:87
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 759 774 Covad Communications
6197 717 876 BellSouth Network Solutions,
7018 641 1470 AT&T WorldNet Services
2386 587 831 AT&T Data Communications Serv
4323 491 1069 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 437 614 Satyam Infoway Ltd.,
4766 401 584 Korea Internet Exchange for "
5668 383 459 Century Telephone
1239 374 912 Sprint
702 370 607 UUNET - Commercial IP service
6198 334 467 BellSouth Network Solutions,
10036 300 300 C&M Communication Co. Ltd.
6467 292 391 E.Spire Communications, Inc.
6517 289 311 Yipes Communications, Inc.
9929 282 359 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
701 248 1023 UUNET Technologies, Inc.
13609 246 290 Choice One Communications Inc
15270 243 262 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1500 13:1 15:9 16:2
17:3 18:4 20:5 24:740 32:64 33:5
38:100 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:2 59:7 60:21 61:735
62:519 63:1880 64:2610 65:2060 66:2722 67:501
68:507 69:918 70:70 71:4 72:105 80:539
81:492 82:340 83:238 84:130 85:158 128:144
129:159 130:89 131:281 132:35 133:1 134:142
135:32 136:190 137:66 138:157 139:50 140:198
141:102 142:142 143:130 144:171 145:45 146:281
147:98 148:292 149:164 150:97 151:63 152:110
153:85 154:3 155:142 156:68 157:85 158:165
159:168 160:71 161:60 162:203 163:86 164:213
165:155 166:127 167:228 168:405 169:133 170:311
171:9 192:5655 193:3117 194:2286 195:1593 196:635
198:3916 199:3264 200:3995 201:57 202:5275 203:6043
204:3699 205:2021 206:2360 207:2698 208:2071 209:3165
210:1610 211:801 212:1172 213:1260 214:242 215:31
216:3644 217:1107 218:192 219:115 220:369 221:107
222:76
End of report
