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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 23 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153110
Prefixes after maximum aggregation: 89829
Unique aggregates announced to Internet: 73353
Total ASes present in the Internet Routing Table: 18679
Origin-only ASes present in the Internet Routing Table: 16216
Origin ASes announcing only one prefix: 7587
Transit ASes present in the Internet Routing Table: 2463
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: 18
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: 1360958564
Equivalent to 81 /8s, 30 /16s and 148 /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: 70967
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29998
Total APNIC prefixes after maximum aggregation: 14710
Prefixes being announced from the APNIC address blocks: 28056
Unique aggregates announced from the APNIC address blocks: 14509
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 644
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: 169684992
Equivalent to 10 /8s, 29 /16s and 48 /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: 86317
Total ARIN prefixes after maximum aggregation: 52139
Prefixes being announced from the ARIN address blocks: 66021
Unique aggregates announced from the ARIN address blocks: 23804
ARIN Region origin ASes present in the Internet Routing Table: 9776
ARIN Region origin ASes announcing only one prefix: 3514
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: 237043200
Equivalent to 14 /8s, 32 /16s and 254 /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: 28720
Total RIPE prefixes after maximum aggregation: 19889
Prefixes being announced from the RIPE address blocks: 25626
Unique aggregates announced from the RIPE address blocks: 16848
RIPE Region origin ASes present in the Internet Routing Table: 6145
RIPE Region origin ASes announcing only one prefix: 3288
RIPE Region transit ASes present in the Internet Routing Table: 1047
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 183410688
Equivalent to 10 /8s, 238 /16s and 160 /24s
Percentage of available RIPE address space announced: 64.3
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: 6791
Total LACNIC prefixes after maximum aggregation: 2393
Prefixes being announced from the LACNIC address blocks: 6635
Unique aggregates announced from the LACNIC address blocks: 4083
LACNIC Region origin ASes present in the Internet Routing Table: 409
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16930816
Equivalent to 1 /8s, 2 /16s and 88 /24s
Percentage of available LACNIC address space announced: 50.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1277
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 856
Unique aggregates announced from the AfriNIC address blocks: 680
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
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: 2098432
Equivalent to 0 /8s, 32 /16s and 5 /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 867 4433 168 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 580 47 37 Satyam Infoway Ltd.,
4766 551 3409 271 Korea Internet Exchange for "
4755 437 176 92 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 315 344 246 UUNET
17557 306 22 149 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 286 272 229 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9498 232 81 54 BHARTI BT INTERNET LTD.
9800 232 381 71 CHINA UNICOM
4802 231 28 140 Wantree Development
7563 226 48 164 Korea Internet Infrastructure
4780 223 225 27 Digital United Inc.
4814 220 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1419 6570 985 AT&T WorldNet Services
701 1087 8355 889 UUNET Technologies, Inc.
721 1070 21840 299 DLA Systems Automation Center
1239 934 2882 624 Sprint
2386 857 528 610 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 821 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 616 10889 450 Level 3 Communications, LLC
20115 574 467 301 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
7132 449 8290 382 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 442 44 20 Armstrong Cable Services
5668 423 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
702 628 2023 519 UUNET - Commercial IP service
3320 296 2992 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 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 206 118 190 Romania Data Systems S.A.
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 1361 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 99 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 317 473 138 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 156 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.
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.
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
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 43 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 26 7 4 Jambonet Autonomous system
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
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 1070 771 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 867 699 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 543 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 423 405 Century Telephone
22773 417 394 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
6467 377 346 E.Spire Communications, Inc.
4755 437 345 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 934 310 Sprint
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
4766 551 280 Korea Internet Exchange for "
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
/13:139 /14:315 /15:562 /16:8226 /17:2338 /18:4003
/19:10015 /20:10611 /21:8161 /22:11347 /23:12908 /24:83473
/25:270 /26:239 /27:127 /28:60 /29:36 /30:129
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 628 857 AT&T Data Communications Serv
7018 580 1419 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 410 580 Satyam Infoway Ltd.,
702 383 628 UUNET - Commercial IP service
1239 372 934 Sprint
4766 371 551 Korea Internet Exchange for "
5668 366 423 Century Telephone
6198 326 447 BellSouth Network Solutions,
10036 290 290 C&M Communication Co. Ltd.
6517 287 310 Yipes Communications, Inc.
6467 286 377 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 270 1087 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
20115 250 574 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1459 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:66 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:700 62:520
63:1846 64:2507 65:2077 66:2517 67:478 68:518
69:832 70:46 71:1 72:21 80:525 81:603
82:372 83:215 84:81 85:33 128:107 129:163
130:89 131:193 132:36 134:190 135:30 136:188
137:69 138:193 139:34 140:230 141:110 142:135
143:124 144:165 145:41 146:283 147:95 148:262
149:129 150:92 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:138 159:162 160:63
161:60 162:383 163:84 164:222 165:170 166:125
167:222 168:366 169:131 170:313 171:8 192:5657
193:3009 194:2217 195:1545 196:592 198:3862 199:3306
200:3970 201:33 202:4995 203:5837 204:3593 205:2113
206:2300 207:2546 208:2110 209:3045 210:1581 211:703
212:1163 213:1258 214:231 215:31 216:3737 217:1070
218:178 219:89 220:299 221:89 222:33
End of report
