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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 13 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157384
Prefixes after maximum aggregation: 92059
Unique aggregates announced to Internet: 75461
Total ASes present in the Internet Routing Table: 19117
Origin-only ASes present in the Internet Routing Table: 16634
Origin ASes announcing only one prefix: 7760
Transit ASes present in the Internet Routing Table: 2483
Transit-only ASes present in the Internet Routing Table: 79
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: 27
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1383510752
Equivalent to 82 /8s, 118 /16s and 178 /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: 73244
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31588
Total APNIC prefixes after maximum aggregation: 15159
Prefixes being announced from the APNIC address blocks: 29618
Unique aggregates announced from the APNIC address blocks: 15019
APNIC Region origin ASes present in the Internet Routing Table: 2214
APNIC Region origin ASes announcing only one prefix: 643
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: 176966592
Equivalent to 10 /8s, 140 /16s and 75 /24s
Percentage of available APNIC address space announced: 65.7
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: 87498
Total ARIN prefixes after maximum aggregation: 53181
Prefixes being announced from the ARIN address blocks: 66950
Unique aggregates announced from the ARIN address blocks: 24351
ARIN Region origin ASes present in the Internet Routing Table: 9921
ARIN Region origin ASes announcing only one prefix: 3585
ARIN Region transit ASes present in the Internet Routing Table: 951
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 241886272
Equivalent to 14 /8s, 106 /16s and 228 /24s
Percentage of available ARIN address space announced: 72.1
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: 30009
Total RIPE prefixes after maximum aggregation: 20611
Prefixes being announced from the RIPE address blocks: 26946
Unique aggregates announced from the RIPE address blocks: 17841
RIPE Region origin ASes present in the Internet Routing Table: 6392
RIPE Region origin ASes announcing only one prefix: 3385
RIPE Region transit ASes present in the Internet Routing Table: 1070
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 193961296
Equivalent to 11 /8s, 143 /16s and 157 /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: 6896
Total LACNIC prefixes after maximum aggregation: 2403
Prefixes being announced from the LACNIC address blocks: 6848
Unique aggregates announced from the LACNIC address blocks: 4010
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: 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: 17696768
Equivalent to 1 /8s, 14 /16s and 8 /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: 1366
Total AfriNIC prefixes after maximum aggregation: 705
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: 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: 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 890 4720 175 Data Communications Bureau
1221 786 1188 558 Telstra Pty Ltd
9583 611 49 25 Satyam Infoway Ltd.,
4766 584 3416 278 Korea Internet Exchange for "
4755 489 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 476 86 69 TPG Internet Pty Ltd
17676 408 6156 73 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 358 175 40 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 288 283 210 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 235 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6548 966 AT&T WorldNet Services
721 1119 21755 313 DLA Systems Automation Center
4323 1067 668 220 Time Warner Telecom
701 1026 8273 874 UUNET Technologies, Inc.
1239 912 2872 661 Sprint
6197 875 382 412 BellSouth Network Solutions,
174 874 5537 757 PSINet Inc.
2386 830 498 613 AT&T Data Communications Serv
18566 774 208 6 Covad Communications
209 639 3482 502 Qwest
20115 582 482 303 Charter Communications
3356 579 10863 430 Level 3 Communications, LLC
3561 560 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 478 1090 24 Cox Communications, Inc. Atla
6198 467 554 191 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
702 606 2005 496 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 223 121 201 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
3215 208 1058 80 France Telecom Transpac
1257 197 710 174 SWIPnet Swedish IP Network
9121 188 235 37 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
3300 162 184 85 AUCS Communications Services
6746 162 47 143 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
5400 143 282 126 BT Ignite European Backbone
6830 142 529 28 UPC Distribution Services
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 136 90 92 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
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 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
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
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1067 847 Time Warner Telecom
721 1119 806 DLA Systems Automation Center
18566 774 768 Covad Communications
4134 890 715 Data Communications Bureau
9583 611 586 Satyam Infoway Ltd.,
6197 875 463 BellSouth Network Solutions,
22773 478 454 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 459 442 Century Telephone
3602 501 408 Sprint Canada, Inc.
7545 476 407 TPG Internet Pty Ltd
6478 498 391 AT&T Worldnet Services
4755 489 388 Videsh Sanchar Nigam Ltd. Aut
6467 391 358 E.Spire Communications, Inc.
17676 408 335 XTAGE CORPORATION
9929 358 318 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
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
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
/13:148 /14:306 /15:570 /16:8318 /17:2454 /18:4172
/19:10106 /20:10824 /21:8680 /22:11994 /23:13136 /24:85751
/25:263 /26:245 /27:104 /28:52 /29:27 /30:84
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 759 774 Covad Communications
6197 716 875 BellSouth Network Solutions,
7018 641 1469 AT&T WorldNet Services
2386 586 830 AT&T Data Communications Serv
4323 489 1067 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 434 611 Satyam Infoway Ltd.,
4766 401 584 Korea Internet Exchange for "
5668 383 459 Century Telephone
1239 374 912 Sprint
702 370 606 UUNET - Commercial IP service
6198 335 467 BellSouth Network Solutions,
10036 300 300 C&M Communication Co. Ltd.
6467 292 391 E.Spire Communications, Inc.
6517 290 312 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
701 248 1026 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 12:1498 13:1 15:9 16:2
17:3 18:4 20:5 24:740 32:64 33:5
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:2 59:7 60:21 61:737
62:516 63:1877 64:2610 65:2058 66:2702 67:499
68:507 69:917 70:70 71:5 72:105 80:541
81:533 82:340 83:265 84:129 85:160 128:146
129:159 130:89 131:281 132:35 133:1 134:142
135:32 136:190 137:66 138:157 139:50 140:198
141:102 142:142 143:130 144:173 145:45 146:281
147:98 148:269 149:164 150:97 151:63 152:110
153:85 154:3 155:142 156:68 157:85 158:165
159:167 160:72 161:60 162:203 163:86 164:212
165:154 166:128 167:227 168:403 169:133 170:311
171:9 192:5655 193:3125 194:2293 195:1591 196:635
198:3910 199:3262 200:4001 201:57 202:5284 203:6064
204:3700 205:2023 206:2362 207:2758 208:2073 209:3169
210:1607 211:800 212:1168 213:1265 214:242 215:31
216:3642 217:1104 218:193 219:115 220:370 221:105
222:76
End of report
