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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 20 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 158356
Prefixes after maximum aggregation: 92475
Unique aggregates announced to Internet: 76049
Total ASes present in the Internet Routing Table: 19169
Origin-only ASes present in the Internet Routing Table: 16687
Origin ASes announcing only one prefix: 7767
Transit ASes present in the Internet Routing Table: 2482
Transit-only ASes present in the Internet Routing Table: 77
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: 30
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1386240544
Equivalent to 82 /8s, 160 /16s and 90 /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: 73655
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31773
Total APNIC prefixes after maximum aggregation: 15178
Prefixes being announced from the APNIC address blocks: 29815
Unique aggregates announced from the APNIC address blocks: 15215
APNIC Region origin ASes present in the Internet Routing Table: 2222
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: 178532800
Equivalent to 10 /8s, 164 /16s and 49 /24s
Percentage of available APNIC address space announced: 66.2
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: 88201
Total ARIN prefixes after maximum aggregation: 53473
Prefixes being announced from the ARIN address blocks: 67590
Unique aggregates announced from the ARIN address blocks: 24674
ARIN Region origin ASes present in the Internet Routing Table: 9938
ARIN Region origin ASes announcing only one prefix: 3590
ARIN Region transit ASes present in the Internet Routing Table: 949
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 242225408
Equivalent to 14 /8s, 112 /16s and 17 /24s
Percentage of available ARIN address space announced: 72.2
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: 30056
Total RIPE prefixes after maximum aggregation: 20709
Prefixes being announced from the RIPE address blocks: 27015
Unique aggregates announced from the RIPE address blocks: 17907
RIPE Region origin ASes present in the Internet Routing Table: 6417
RIPE Region origin ASes announcing only one prefix: 3381
RIPE Region transit ASes present in the Internet Routing Table: 1076
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 195186128
Equivalent to 11 /8s, 162 /16s and 77 /24s
Percentage of available RIPE address space announced: 68.4
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: 6927
Total LACNIC prefixes after maximum aggregation: 2419
Prefixes being announced from the LACNIC address blocks: 6898
Unique aggregates announced from the LACNIC address blocks: 4030
LACNIC Region origin ASes present in the Internet Routing Table: 426
LACNIC Region origin ASes announcing only one prefix: 124
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17803520
Equivalent to 1 /8s, 15 /16s and 169 /24s
Percentage of available LACNIC address space announced: 53.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1372
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 894
Unique aggregates announced from the AfriNIC address blocks: 717
AfriNIC Region origin ASes present in the Internet Routing Table: 95
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: 2187264
Equivalent to 0 /8s, 33 /16s and 96 /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 4729 176 Data Communications Bureau
1221 783 1187 556 Telstra Pty Ltd
9583 623 50 29 Satyam Infoway Ltd.,
4766 582 3415 276 Korea Internet Exchange for "
4755 502 242 105 Videsh Sanchar Nigam Ltd. Aut
7545 477 86 70 TPG Internet Pty Ltd
17676 417 6300 76 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
17557 357 25 157 Pakistan Telecom
2907 347 1823 321 SINET Japan
10036 300 27 273 C&M Communication Co. Ltd.
4808 299 245 160 CHINANET core WAN North
7474 290 267 210 Optus Communications Pty Ltd
4802 282 47 166 Wantree Development
9498 259 82 53 BHARTI BT INTERNET LTD.
2764 256 238 204 connect.com.au pty ltd
703 249 279 207 UUNET
9800 236 387 70 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 1466 6562 962 AT&T WorldNet Services
721 1115 21755 313 DLA Systems Automation Center
4323 1066 651 219 Time Warner Telecom
701 1030 8288 876 UUNET Technologies, Inc.
174 923 5568 782 PSINet Inc.
1239 916 2872 661 Sprint
6197 876 375 410 BellSouth Network Solutions,
2386 833 501 614 AT&T Data Communications Serv
18566 778 208 6 Covad Communications
209 636 3459 498 Qwest
20115 589 489 306 Charter Communications
3356 578 10863 429 Level 3 Communications, LLC
3561 554 2370 414 Cable & Wireless USA
852 541 1095 401 Telus Advanced Communications
3602 501 121 92 Sprint Canada, Inc.
6478 500 833 108 AT&T Worldnet Services
22773 481 1218 25 Cox Communications, Inc. Atla
6198 469 554 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 460 115 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 603 2005 494 UUNET - Commercial IP service
3320 295 2992 230 Deutsche Telekom AG
3301 288 1112 278 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 230 475 224 Song Networks
8708 226 251 204 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
9121 197 237 39 TTnet Autonomous System
1257 196 710 173 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 173 19 20 Bulgarian Telecommunication C
3269 166 1456 72 TELECOM ITALIA
6746 160 47 141 Dynamic Network Technologies,
719 157 322 99 LANLINK autonomous system
3300 152 184 85 AUCS Communications Services
6830 143 529 28 UPC Distribution Services
5400 142 281 124 BT Ignite European Backbone
25186 135 138 101 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 383 140 71 ImpSat
8151 340 489 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 214 99 52 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 147 67 31 Telecom Argentina Stet-France
6505 132 90 88 Global One Communicaoes Ltda
14117 118 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
6503 103 145 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 84 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
7738 75 298 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 74 266 68 The Internetworking Company o
8452 55 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
12455 41 7 4 Jambonet Autonomous system
9129 39 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
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
21280 18 2 3 Swift Global Kenya Ltd.Is an
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1066 847 Time Warner Telecom
721 1115 802 DLA Systems Automation Center
18566 778 772 Covad Communications
4134 891 715 Data Communications Bureau
9583 623 594 Satyam Infoway Ltd.,
6197 876 466 BellSouth Network Solutions,
22773 481 456 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 460 443 Century Telephone
3602 501 409 Sprint Canada, Inc.
7545 477 407 TPG Internet Pty Ltd
4755 502 397 Videsh Sanchar Nigam Ltd. Aut
6478 500 392 AT&T Worldnet Services
6467 407 374 E.Spire Communications, Inc.
17676 417 341 XTAGE CORPORATION
9929 358 313 China Netcom Corp.
6140 383 312 ImpSat
4766 582 306 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
20115 589 283 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
30998 UNALLOCATED 65.120.56.0/21 209 Qwest
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
24261 UNALLOCATED 133.67.0.0/16 9351 Tsu Cable Television
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
30998 UNALLOCATED 196.207.0.0/20 209 Qwest
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
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
192.172.0.0/19 721 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
/13:152 /14:305 /15:573 /16:8313 /17:2480 /18:4221
/19:10245 /20:11035 /21:8721 /22:12064 /23:13182 /24:86114
/25:267 /26:258 /27:110 /28:53 /29:25 /30:89
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 763 778 Covad Communications
6197 717 876 BellSouth Network Solutions,
7018 640 1466 AT&T WorldNet Services
2386 586 833 AT&T Data Communications Serv
4323 489 1066 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 444 623 Satyam Infoway Ltd.,
4766 399 582 Korea Internet Exchange for "
5668 383 460 Century Telephone
1239 380 916 Sprint
702 367 603 UUNET - Commercial IP service
6198 337 469 BellSouth Network Solutions,
6467 304 407 E.Spire Communications, Inc.
10036 300 300 C&M Communication Co. Ltd.
6517 289 311 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 263 310 Carolina Online, Inc.
701 250 1030 UUNET Technologies, Inc.
15270 247 266 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1503 13:1 15:9 16:2
17:3 18:4 20:5 24:740 32:64 33:4
38:101 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:4 59:10 60:25 61:737
62:528 63:1878 64:2635 65:2072 66:2729 67:508
68:505 69:943 70:73 71:5 72:117 80:529
81:516 82:345 83:249 84:129 85:173 128:150
129:158 130:89 131:281 132:33 134:144 135:34
136:190 137:66 138:158 139:50 140:195 141:104
142:139 143:120 144:171 145:45 146:280 147:98
148:294 149:167 150:97 151:63 152:110 153:85
154:3 155:140 156:69 157:87 158:167 159:167
160:71 161:59 162:202 163:86 164:215 165:153
166:127 167:229 168:409 169:135 170:312 171:8
172:1 192:5655 193:3117 194:2302 195:1601 196:623
198:3923 199:3259 200:4037 201:57 202:5343 203:6105
204:3718 205:2022 206:2367 207:2694 208:2064 209:3197
210:1628 211:819 212:1158 213:1273 214:241 215:31
216:3678 217:1127 218:190 219:114 220:369 221:111
222:78
End of report
