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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 15 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152741
Prefixes after maximum aggregation: 89706
Unique aggregates announced to Internet: 73131
Total ASes present in the Internet Routing Table: 18623
Origin-only ASes present in the Internet Routing Table: 16154
Origin ASes announcing only one prefix: 7584
Transit ASes present in the Internet Routing Table: 2469
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 33
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1359001960
Equivalent to 81 /8s, 0 /16s and 185 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70769
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29820
Total APNIC prefixes after maximum aggregation: 14691
Prefixes being announced from the APNIC address blocks: 27872
Unique aggregates announced from the APNIC address blocks: 14467
APNIC Region origin ASes present in the Internet Routing Table: 2172
APNIC Region origin ASes announcing only one prefix: 645
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: 16
Number of APNIC addresses announced to Internet: 168926976
Equivalent to 10 /8s, 17 /16s and 159 /24s
Percentage of available APNIC address space announced: 77.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86299
Total ARIN prefixes after maximum aggregation: 52114
Prefixes being announced from the ARIN address blocks: 66056
Unique aggregates announced from the ARIN address blocks: 23780
ARIN Region origin ASes present in the Internet Routing Table: 9773
ARIN Region origin ASes announcing only one prefix: 3527
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236746752
Equivalent to 14 /8s, 28 /16s and 120 /24s
Percentage of available ARIN address space announced: 70.6
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,
26624-27647,29695-30719, 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: 28590
Total RIPE prefixes after maximum aggregation: 19811
Prefixes being announced from the RIPE address blocks: 25484
Unique aggregates announced from the RIPE address blocks: 16733
RIPE Region origin ASes present in the Internet Routing Table: 6106
RIPE Region origin ASes announcing only one prefix: 3272
RIPE Region transit ASes present in the Internet Routing Table: 1049
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 33
Number of RIPE addresses announced to Internet: 182273024
Equivalent to 10 /8s, 221 /16s and 68 /24s
Percentage of available RIPE address space announced: 63.9
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: 6771
Total LACNIC prefixes after maximum aggregation: 2394
Prefixes being announced from the LACNIC address blocks: 6607
Unique aggregates announced from the LACNIC address blocks: 4046
LACNIC Region origin ASes present in the Internet Routing Table: 408
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16899328
Equivalent to 1 /8s, 1 /16s and 221 /24s
Percentage of available LACNIC address space announced: 50.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1253
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 846
Unique aggregates announced from the AfriNIC address blocks: 674
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2083584
Equivalent to 0 /8s, 31 /16s and 203 /24s
Percentage of available AfriNIC address space announced: 12.4
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 864 4415 166 Data Communications Bureau
1221 784 1167 562 Telstra Pty Ltd
9583 570 47 37 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 430 143 92 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 355 1873 329 SINET Japan
9929 354 164 40 China Netcom Corp.
17557 322 23 158 Pakistan Telecom
703 313 344 244 UUNET
2764 287 272 232 connect.com.au pty ltd
10036 285 26 261 C&M Communication Co. Ltd.
7474 276 268 205 Optus Communications Pty Ltd
9800 231 381 71 CHINA UNICOM
4802 229 28 138 Wantree Development
9498 228 81 53 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
4780 218 225 27 Digital United Inc.
17974 215 62 11 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1431 6619 989 AT&T WorldNet Services
701 1069 8350 883 UUNET Technologies, Inc.
721 1054 21816 298 DLA Systems Automation Center
1239 931 2882 620 Sprint
2386 864 529 615 AT&T Data Communications Serv
6197 821 384 353 BellSouth Network Solutions,
4323 811 670 220 Time Warner Telecom
18566 755 208 6 Covad Communications
209 654 3422 509 Qwest
3356 642 10914 458 Level 3 Communications, LLC
20115 592 462 317 Charter Communications
3561 546 2369 415 Cable & Wireless USA
852 519 1142 402 Telus Advanced Communications
7843 483 730 94 Adelphia Corp.
6478 465 814 97 AT&T Worldnet Services
7132 452 8292 384 SBC Internet Services
6198 446 382 203 BellSouth Network Solutions,
27364 440 36 19 Armstrong Cable Services
5668 422 87 18 Century Telephone
22909 418 903 62 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 629 2024 520 UUNET - Commercial IP service
3320 306 2997 243 Deutsche Telekom AG
3301 282 1112 273 TeliaNet Sweden
8220 279 464 264 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 482 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 203 116 187 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 173 982 76 France Telecom Transpac
6746 167 46 135 Dynamic Network Technologies,
8866 164 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 156 1330 70 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 145 138 101 France Telecom Transpac's Tra
5400 134 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 139 72 ImpSat
8151 315 472 140 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 148 66 24 Telecom Argentina Stet-France
6505 141 90 97 Global One Communicaoes Ltda
6503 127 148 84 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 85 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
12455 24 4 3 Jambonet Autonomous system
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1054 756 DLA Systems Automation Center
18566 755 749 Covad Communications
4134 864 698 Data Communications Bureau
4323 811 591 Time Warner Telecom
9583 570 533 Satyam Infoway Ltd.,
6197 821 468 BellSouth Network Solutions,
27364 440 421 Armstrong Cable Services
5668 422 404 Century Telephone
22773 412 391 Cox Communications, Inc. Atla
7843 483 389 Adelphia Corp.
6478 465 368 AT&T Worldnet Services
22909 418 356 Comcast Cable Corporation
6467 376 345 E.Spire Communications, Inc.
4755 430 338 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 931 311 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
6140 352 280 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 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 /10:7 /11:15 /12:59
/13:138 /14:313 /15:559 /16:8192 /17:2321 /18:4007
/19:9998 /20:10569 /21:8111 /22:11297 /23:12848 /24:83375
/25:268 /26:239 /27:125 /28:59 /29:39 /30:131
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 667 821 BellSouth Network Solutions,
2386 631 864 AT&T Data Communications Serv
7018 584 1431 AT&T WorldNet Services
27364 426 440 Armstrong Cable Services
9583 400 570 Satyam Infoway Ltd.,
702 384 629 UUNET - Commercial IP service
1239 370 931 Sprint
4766 368 548 Korea Internet Exchange for "
5668 365 422 Century Telephone
6198 325 446 BellSouth Network Solutions,
6467 286 376 E.Spire Communications, Inc.
13609 286 328 Choice One Communications Inc
10036 285 285 C&M Communication Co. Ltd.
9929 283 354 China Netcom Corp.
6517 282 305 Yipes Communications, Inc.
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 261 811 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1459 13:1 15:5 16:2
17:3 18:3 20:5 24:738 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:11 61:697 62:514 63:1850
64:2511 65:2084 66:2520 67:472 68:524 69:847
70:43 72:17 80:525 81:584 82:365 83:213
84:79 85:38 128:118 129:164 130:89 131:191
132:36 134:190 135:30 136:188 137:70 138:189
139:34 140:227 141:110 142:136 143:118 144:164
145:40 146:283 147:95 148:262 149:123 150:91
151:63 152:121 153:70 154:2 155:132 156:62
157:71 158:137 159:162 160:61 161:60 162:379
163:84 164:219 165:169 166:124 167:222 168:367
169:130 170:312 171:8 192:5659 193:3003 194:2213
195:1543 196:587 198:3897 199:3311 200:3947 201:31
202:4973 203:5812 204:3571 205:2108 206:2313 207:2552
208:2109 209:3052 210:1574 211:703 212:1162 213:1245
214:227 215:31 216:3736 217:1064 218:181 219:86
220:299 221:80 222:32
End of report
