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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 17 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155895
Prefixes after maximum aggregation: 90922
Unique aggregates announced to Internet: 75044
Total ASes present in the Internet Routing Table: 18982
Origin-only ASes present in the Internet Routing Table: 16504
Origin ASes announcing only one prefix: 7732
Transit ASes present in the Internet Routing Table: 2478
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: 23
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: 11
Number of addresses announced to Internet: 1377043540
Equivalent to 82 /8s, 20 /16s and 4 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72638
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31089
Total APNIC prefixes after maximum aggregation: 14948
Prefixes being announced from the APNIC address blocks: 29144
Unique aggregates announced from the APNIC address blocks: 14815
APNIC Region origin ASes present in the Internet Routing Table: 2206
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 174085504
Equivalent to 10 /8s, 96 /16s and 85 /24s
Percentage of available APNIC address space announced: 64.6
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: 87079
Total ARIN prefixes after maximum aggregation: 52454
Prefixes being announced from the ARIN address blocks: 66310
Unique aggregates announced from the ARIN address blocks: 24261
ARIN Region origin ASes present in the Internet Routing Table: 9878
ARIN Region origin ASes announcing only one prefix: 3588
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: 16
Number of ARIN addresses announced to Internet: 239181576
Equivalent to 14 /8s, 65 /16s and 159 /24s
Percentage of available ARIN address space announced: 71.3
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: 29526
Total RIPE prefixes after maximum aggregation: 20393
Prefixes being announced from the RIPE address blocks: 26388
Unique aggregates announced from the RIPE address blocks: 17553
RIPE Region origin ASes present in the Internet Routing Table: 6309
RIPE Region origin ASes announcing only one prefix: 3343
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: 23
Number of RIPE addresses announced to Internet: 192278080
Equivalent to 11 /8s, 117 /16s and 238 /24s
Percentage of available RIPE address space announced: 67.4
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, 33792-34815
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: 6838
Total LACNIC prefixes after maximum aggregation: 2416
Prefixes being announced from the LACNIC address blocks: 6727
Unique aggregates announced from the LACNIC address blocks: 3990
LACNIC Region origin ASes present in the Internet Routing Table: 419
LACNIC Region origin ASes announcing only one prefix: 127
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17423872
Equivalent to 1 /8s, 9 /16s and 222 /24s
Percentage of available LACNIC address space announced: 51.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1344
Total AfriNIC prefixes after maximum aggregation: 711
Prefixes being announced from the AfriNIC address blocks: 905
Unique aggregates announced from the AfriNIC address blocks: 718
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 25
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: 2172160
Equivalent to 0 /8s, 33 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 12.9
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 883 4688 172 Data Communications Bureau
1221 787 1184 562 Telstra Pty Ltd
9583 593 48 13 Satyam Infoway Ltd.,
4766 589 3414 280 Korea Internet Exchange for "
7545 498 86 69 TPG Internet Pty Ltd
4755 457 241 100 Videsh Sanchar Nigam Ltd. Aut
17676 396 5948 64 XTAGE CORPORATION
9443 371 77 79 Primus Telecommunications
9929 350 164 35 China Netcom Corp.
2907 347 1838 322 SINET Japan
17557 327 24 150 Pakistan Telecom
10036 293 27 269 C&M Communication Co. Ltd.
7474 288 299 210 Optus Communications Pty Ltd
703 272 339 213 UUNET
2764 262 238 210 connect.com.au pty ltd
9498 237 81 53 BHARTI BT INTERNET LTD.
9800 237 383 75 CHINA UNICOM
4808 236 170 128 CHINANET core WAN North
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
4802 230 28 139 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6604 972 AT&T WorldNet Services
721 1144 21770 313 DLA Systems Automation Center
4323 1032 672 221 Time Warner Telecom
701 1028 8309 878 UUNET Technologies, Inc.
1239 953 2880 629 Sprint
6197 863 378 403 BellSouth Network Solutions,
2386 821 511 602 AT&T Data Communications Serv
18566 767 208 6 Covad Communications
209 647 3450 497 Qwest
3356 595 10868 444 Level 3 Communications, LLC
3561 591 2372 418 Cable & Wireless USA
20115 579 483 301 Charter Communications
852 523 1126 398 Telus Advanced Communications
6478 499 823 100 AT&T Worldnet Services
3602 496 120 93 Sprint Canada, Inc.
22773 470 1090 24 Cox Communications, Inc. Atla
6198 464 558 186 BellSouth Network Solutions,
27364 464 43 18 Armstrong Cable Services
5668 448 91 19 Century Telephone
7132 441 8411 381 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2022 504 UUNET - Commercial IP service
3320 296 2992 230 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 276 466 270 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 225 476 220 Song Networks
8708 219 120 198 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 205 708 171 SWIPnet Swedish IP Network
3215 202 1025 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 179 47 143 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 174 19 20 Bulgarian Telecommunication C
719 163 322 105 LANLINK autonomous system
3269 163 1424 72 TELECOM ITALIA
3300 163 184 84 AUCS Communications Services
25186 141 138 99 France Telecom Transpac's Tra
5400 137 218 121 BT Ignite European Backbone
9051 128 8 33 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 140 70 ImpSat
8151 336 501 143 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 220 101 55 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 150 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 116 146 79 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
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
2905 85 267 77 The Internetworking Company o
20928 84 16 2 Noor Advanced Technologies AS
24835 53 34 6 RAYA Telecom - Egypt
8452 38 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
9129 32 3 2 UUNET Kenya
12455 29 6 7 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 16 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
15808 14 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1144 831 DLA Systems Automation Center
4323 1032 811 Time Warner Telecom
18566 767 761 Covad Communications
4134 883 711 Data Communications Bureau
9583 593 580 Satyam Infoway Ltd.,
6197 863 460 BellSouth Network Solutions,
22773 470 446 Cox Communications, Inc. Atla
27364 464 446 Armstrong Cable Services
7545 498 429 TPG Internet Pty Ltd
5668 448 429 Century Telephone
3602 496 403 Sprint Canada, Inc.
6478 499 399 AT&T Worldnet Services
4755 457 357 Videsh Sanchar Nigam Ltd. Aut
22909 418 341 Comcast Cable Corporation
6467 368 336 E.Spire Communications, Inc.
17676 396 332 XTAGE CORPORATION
1239 953 324 Sprint
9929 350 315 China Netcom Corp.
4766 589 309 Korea Internet Exchange for "
9443 371 292 Primus Telecommunications
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
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.148.0/28 15296 Netera Alliance Inc.
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
192.44.0.0/24 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
/13:146 /14:305 /15:561 /16:8300 /17:2407 /18:4107
/19:10079 /20:10690 /21:8471 /22:11766 /23:12982 /24:85129
/25:295 /26:255 /27:101 /28:49 /29:23 /30:82
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 752 767 Covad Communications
6197 707 863 BellSouth Network Solutions,
7018 630 1459 AT&T WorldNet Services
2386 585 821 AT&T Data Communications Serv
4323 478 1032 Time Warner Telecom
27364 449 464 Armstrong Cable Services
9583 415 593 Satyam Infoway Ltd.,
4766 402 589 Korea Internet Exchange for "
5668 379 448 Century Telephone
702 368 607 UUNET - Commercial IP service
1239 367 953 Sprint
6198 332 464 BellSouth Network Solutions,
10036 293 293 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
6467 276 368 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
11456 263 310 Carolina Online, Inc.
13609 256 305 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
701 241 1028 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1485 13:1 15:9 16:2
17:3 18:4 20:4 24:736 32:65 33:3
38:96 40:55 44:3 47:2 52:3 55:2
56:3 57:21 59:2 60:14 61:697 62:514
63:1870 64:2593 65:2090 66:2725 67:490 68:500
69:913 70:63 71:2 72:61 80:537 81:504
82:353 83:260 84:127 85:106 128:137 129:165
130:92 131:278 132:36 133:1 134:142 135:30
136:212 137:64 138:180 139:52 140:195 141:101
142:140 143:122 144:255 145:45 146:282 147:100
148:265 149:163 150:97 151:62 152:110 153:79
154:2 155:143 156:70 157:78 158:149 159:164
160:67 161:59 162:393 163:84 164:214 165:158
166:130 167:226 168:398 169:133 170:313 171:9
192:5676 193:3064 194:2254 195:1567 196:634 198:3827
199:3283 200:3971 201:50 202:5169 203:6027 204:3636
205:2007 206:2310 207:2692 208:2085 209:3111 210:1570
211:781 212:1155 213:1267 214:240 215:31 216:3677
217:1087 218:189 219:117 220:365 221:82 222:78
End of report
