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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 19 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152902
Prefixes after maximum aggregation: 89669
Unique aggregates announced to Internet: 73247
Total ASes present in the Internet Routing Table: 18643
Origin-only ASes present in the Internet Routing Table: 16179
Origin ASes announcing only one prefix: 7587
Transit ASes present in the Internet Routing Table: 2464
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: 17
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: 1359403612
Equivalent to 81 /8s, 6 /16s and 218 /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: 70908
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29911
Total APNIC prefixes after maximum aggregation: 14693
Prefixes being announced from the APNIC address blocks: 27966
Unique aggregates announced from the APNIC address blocks: 14502
APNIC Region origin ASes present in the Internet Routing Table: 2175
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169581824
Equivalent to 10 /8s, 27 /16s and 157 /24s
Percentage of available APNIC address space announced: 77.4
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: 86320
Total ARIN prefixes after maximum aggregation: 52037
Prefixes being announced from the ARIN address blocks: 66068
Unique aggregates announced from the ARIN address blocks: 23812
ARIN Region origin ASes present in the Internet Routing Table: 9766
ARIN Region origin ASes announcing only one prefix: 3522
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237061632
Equivalent to 14 /8s, 33 /16s and 70 /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: 28663
Total RIPE prefixes after maximum aggregation: 19857
Prefixes being announced from the RIPE address blocks: 25556
Unique aggregates announced from the RIPE address blocks: 16795
RIPE Region origin ASes present in the Internet Routing Table: 6126
RIPE Region origin ASes announcing only one prefix: 3277
RIPE Region transit ASes present in the Internet Routing Table: 1048
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 182588928
Equivalent to 10 /8s, 226 /16s and 22 /24s
Percentage of available RIPE address space announced: 64.0
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, 33792-34815
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: 6745
Total LACNIC prefixes after maximum aggregation: 2386
Prefixes being announced from the LACNIC address blocks: 6596
Unique aggregates announced from the LACNIC address blocks: 4049
LACNIC Region origin ASes present in the Internet Routing Table: 407
LACNIC Region origin ASes announcing only one prefix: 118
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16902656
Equivalent to 1 /8s, 1 /16s and 234 /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: 1255
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 854
Unique aggregates announced from the AfriNIC address blocks: 679
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2096640
Equivalent to 0 /8s, 31 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 12.5
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 868 4433 168 Data Communications Bureau
1221 794 1184 568 Telstra Pty Ltd
9583 577 47 37 Satyam Infoway Ltd.,
4766 551 3409 271 Korea Internet Exchange for "
4755 437 176 94 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1873 329 SINET Japan
9929 354 164 40 China Netcom Corp.
17557 323 23 158 Pakistan Telecom
703 313 344 244 UUNET
10036 288 26 264 C&M Communication Co. Ltd.
2764 285 272 230 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 232 381 71 CHINA UNICOM
4802 230 28 139 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
7563 225 48 163 Korea Internet Infrastructure
4780 221 225 27 Digital United Inc.
17974 217 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1424 6587 982 AT&T WorldNet Services
701 1079 8354 886 UUNET Technologies, Inc.
721 1063 21824 298 DLA Systems Automation Center
1239 934 2882 623 Sprint
2386 856 513 613 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 818 670 222 Time Warner Telecom
18566 755 208 6 Covad Communications
209 660 3405 506 Qwest
3356 618 10889 450 Level 3 Communications, LLC
20115 572 464 299 Charter Communications
3561 548 2369 415 Cable & Wireless USA
852 527 1126 400 Telus Advanced Communications
7843 483 733 95 Adelphia Corp.
6478 466 814 97 AT&T Worldnet Services
7132 451 8292 384 SBC Internet Services
6198 447 382 202 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 423 87 18 Century Telephone
22909 422 906 64 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 297 2994 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 275 463 263 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 223 482 219 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 205 116 189 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 175 990 77 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 155 1329 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 72 ImpSat
8151 319 473 140 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 146 66 24 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 124 132 81 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 86 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
10481 82 32 7 Prima S.A.
13999 82 52 9 Mega Cable S.A. de C.V.
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
10292 73 6 24 TELECOMMUNICATIONS OF JAMAICA
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 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT 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 1063 765 DLA Systems Automation Center
18566 755 749 Covad Communications
4134 868 700 Data Communications Bureau
4323 818 596 Time Warner Telecom
9583 577 540 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 423 405 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 483 388 Adelphia Corp.
6478 466 369 AT&T Worldnet Services
22909 422 358 Comcast Cable Corporation
6467 375 344 E.Spire Communications, Inc.
4755 437 343 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 934 311 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
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 /14:314 /15:562 /16:8206 /17:2325 /18:4006
/19:10013 /20:10597 /21:8146 /22:11357 /23:12871 /24:83357
/25:269 /26:239 /27:123 /28:57 /29:38 /30:132
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 627 856 AT&T Data Communications Serv
7018 583 1424 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 407 577 Satyam Infoway Ltd.,
702 384 629 UUNET - Commercial IP service
1239 373 934 Sprint
4766 371 551 Korea Internet Exchange for "
5668 366 423 Century Telephone
6198 326 447 BellSouth Network Solutions,
10036 288 288 C&M Communication Co. Ltd.
6517 286 309 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
6467 285 375 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
21502 269 272 NUMERICABLE is a cabled netwo
4323 265 818 Time Warner Telecom
701 263 1079 UUNET Technologies, Inc.
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1454 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:66 33:3
38:86 40:55 44:3 47:2 52:3 55:2
56:3 57:23 60:11 61:694 62:520 63:1847
64:2513 65:2079 66:2524 67:478 68:520 69:850
70:45 71:1 72:20 80:520 81:587 82:370
83:213 84:83 85:34 128:113 129:163 130:89
131:191 132:36 134:190 135:30 136:189 137:70
138:189 139:34 140:229 141:110 142:135 143:122
144:165 145:40 146:283 147:95 148:264 149:128
150:91 151:63 152:118 153:70 154:2 155:125
156:62 157:72 158:137 159:162 160:61 161:61
162:381 163:80 164:222 165:170 166:125 167:222
168:364 169:130 170:304 171:8 192:5648 193:3006
194:2216 195:1557 196:593 198:3885 199:3299 200:3937
201:34 202:4993 203:5813 204:3575 205:2114 206:2290
207:2536 208:2104 209:3062 210:1575 211:700 212:1152
213:1262 214:228 215:31 216:3744 217:1067 218:181
219:86 220:300 221:86 222:32
End of report
