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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153334
Prefixes after maximum aggregation: 89980
Unique aggregates announced to Internet: 73508
Total ASes present in the Internet Routing Table: 18716
Origin-only ASes present in the Internet Routing Table: 16236
Origin ASes announcing only one prefix: 7622
Transit ASes present in the Internet Routing Table: 2480
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: 20
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: 1361445992
Equivalent to 81 /8s, 38 /16s and 4 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71060
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30122
Total APNIC prefixes after maximum aggregation: 14819
Prefixes being announced from the APNIC address blocks: 28177
Unique aggregates announced from the APNIC address blocks: 14493
APNIC Region origin ASes present in the Internet Routing Table: 2179
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: 15
Number of APNIC addresses announced to Internet: 170541056
Equivalent to 10 /8s, 42 /16s and 64 /24s
Percentage of available APNIC address space announced: 77.8
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: 86297
Total ARIN prefixes after maximum aggregation: 52146
Prefixes being announced from the ARIN address blocks: 66092
Unique aggregates announced from the ARIN address blocks: 23893
ARIN Region origin ASes present in the Internet Routing Table: 9786
ARIN Region origin ASes announcing only one prefix: 3528
ARIN Region transit ASes present in the Internet Routing Table: 968
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 236415232
Equivalent to 14 /8s, 23 /16s and 105 /24s
Percentage of available ARIN address space announced: 70.5
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: 28769
Total RIPE prefixes after maximum aggregation: 19919
Prefixes being announced from the RIPE address blocks: 25692
Unique aggregates announced from the RIPE address blocks: 16871
RIPE Region origin ASes present in the Internet Routing Table: 6168
RIPE Region origin ASes announcing only one prefix: 3300
RIPE Region transit ASes present in the Internet Routing Table: 1065
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 183816192
Equivalent to 10 /8s, 244 /16s and 208 /24s
Percentage of available RIPE address space announced: 64.4
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: 6844
Total LACNIC prefixes after maximum aggregation: 2393
Prefixes being announced from the LACNIC address blocks: 6712
Unique aggregates announced from the LACNIC address blocks: 4113
LACNIC Region origin ASes present in the Internet Routing Table: 412
LACNIC Region origin ASes announcing only one prefix: 122
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 17050368
Equivalent to 1 /8s, 4 /16s and 43 /24s
Percentage of available LACNIC address space announced: 50.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1295
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 866
Unique aggregates announced from the AfriNIC address blocks: 684
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: 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: 2101504
Equivalent to 0 /8s, 32 /16s and 17 /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 875 4611 168 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 580 47 29 Satyam Infoway Ltd.,
4766 555 3409 272 Korea Internet Exchange for "
4755 434 176 88 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 356 164 41 China Netcom Corp.
703 319 344 248 UUNET
17557 306 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 273 267 202 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
7563 227 48 165 Korea Internet Infrastructure
4814 226 232 6 China Telecom (Group)
17974 218 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6571 983 AT&T WorldNet Services
721 1073 21838 301 DLA Systems Automation Center
701 1044 8325 897 UUNET Technologies, Inc.
1239 933 2882 623 Sprint
2386 854 528 607 AT&T Data Communications Serv
4323 821 670 223 Time Warner Telecom
6197 814 380 367 BellSouth Network Solutions,
18566 757 208 6 Covad Communications
209 655 3405 504 Qwest
3356 606 10872 443 Level 3 Communications, LLC
20115 567 468 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8275 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 626 2023 517 UUNET - Commercial IP service
3320 294 2992 232 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 254 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 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 158 1360 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 355 140 69 ImpSat
8151 329 473 141 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 215 99 54 Servicios Alestra S.A de C.V
11664 189 19 28 Keytech SA
6147 184 94 20 Telefonica Del Peru
7303 175 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 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 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
4270 81 18 9 Red de Interconexion Universi
13999 81 52 9 Mega Cable S.A. de C.V.
5639 79 8 8 Telecommunications Services o
15311 78 25 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 76 271 69 The Internetworking Company o
20928 73 16 2 Noor Advanced Technologies AS
24835 48 34 7 RAYA Telecom - Egypt
8452 35 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 34 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 24 1 7 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
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 1073 772 DLA Systems Automation Center
18566 757 751 Covad Communications
4134 875 707 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 551 Satyam Infoway Ltd.,
6197 814 447 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 434 346 Videsh Sanchar Nigam Ltd. Aut
6467 373 342 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 356 315 China Netcom Corp.
1239 933 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
6140 355 286 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
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
/13:140 /14:314 /15:563 /16:8224 /17:2331 /18:4030
/19:10022 /20:10637 /21:8190 /22:11407 /23:12943 /24:83533
/25:255 /26:231 /27:127 /28:60 /29:37 /30:134
/31:0 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 742 757 Covad Communications
6197 660 814 BellSouth Network Solutions,
2386 627 854 AT&T Data Communications Serv
7018 585 1427 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 403 580 Satyam Infoway Ltd.,
702 382 626 UUNET - Commercial IP service
4766 375 555 Korea Internet Exchange for "
1239 371 933 Sprint
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 291 314 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 285 356 China Netcom Corp.
6467 283 373 E.Spire Communications, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 268 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
701 251 1044 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:716 32:67 33:3
38:84 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:686 62:498
63:1853 64:2524 65:2079 66:2529 67:477 68:517
69:857 70:50 71:1 72:21 80:527 81:605
82:380 83:208 84:73 85:43 128:108 129:164
130:89 131:193 132:34 134:176 135:30 136:186
137:70 138:159 139:37 140:186 141:108 142:133
143:124 144:165 145:41 146:282 147:88 148:261
149:129 150:92 151:62 152:118 153:70 154:2
155:134 156:62 157:70 158:146 159:163 160:63
161:60 162:383 163:84 164:223 165:167 166:126
167:222 168:357 169:131 170:313 171:8 192:5648
193:3023 194:2223 195:1540 196:600 198:3867 199:3295
200:4000 201:43 202:5025 203:5860 204:3572 205:2106
206:2312 207:2537 208:2108 209:3056 210:1555 211:730
212:1166 213:1257 214:231 215:31 216:3737 217:1092
218:175 219:91 220:308 221:93 222:37
End of report
