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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 14 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149170
Prefixes after maximum aggregation: 87976
Unique aggregates announced to Internet: 71110
Total ASes present in the Internet Routing Table: 18229
Origin-only ASes present in the Internet Routing Table: 15835
Origin ASes announcing only one prefix: 7427
Transit ASes present in the Internet Routing Table: 2394
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 58
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1344870956
Equivalent to 80 /8s, 41 /16s and 26 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68780
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28752
Total APNIC prefixes after maximum aggregation: 14294
Prefixes being announced from the APNIC address blocks: 26913
Unique aggregates announced from the APNIC address blocks: 14296
APNIC Region origin ASes present in the Internet Routing Table: 2151
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 164533632
Equivalent to 9 /8s, 206 /16s and 149 /24s
Percentage of available APNIC address space announced: 75.1
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: 84991
Total ARIN prefixes after maximum aggregation: 51422
Prefixes being announced from the ARIN address blocks: 65038
Unique aggregates announced from the ARIN address blocks: 23034
ARIN Region origin ASes present in the Internet Routing Table: 9616
ARIN Region origin ASes announcing only one prefix: 3459
ARIN Region transit ASes present in the Internet Routing Table: 931
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234225920
Equivalent to 13 /8s, 246 /16s and 1 /24s
Percentage of available ARIN address space announced: 69.8
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: 27697
Total RIPE prefixes after maximum aggregation: 19221
Prefixes being announced from the RIPE address blocks: 24544
Unique aggregates announced from the RIPE address blocks: 16068
RIPE Region origin ASes present in the Internet Routing Table: 5905
RIPE Region origin ASes announcing only one prefix: 3187
RIPE Region transit ASes present in the Internet Routing Table: 1014
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 173538880
Equivalent to 10 /8s, 87 /16s and 254 /24s
Percentage of available RIPE address space announced: 60.8
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: 6451
Total LACNIC prefixes after maximum aggregation: 2351
Prefixes being announced from the LACNIC address blocks: 6267
Unique aggregates announced from the LACNIC address blocks: 3686
LACNIC Region origin ASes present in the Internet Routing Table: 395
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16276224
Equivalent to 0 /8s, 248 /16s and 91 /24s
Percentage of available LACNIC address space announced: 48.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1271
Total AfriNIC prefixes after maximum aggregation: 688
Prefixes being announced from the AfriNIC address blocks: 886
Unique aggregates announced from the AfriNIC address blocks: 677
AfriNIC Region origin ASes present in the Internet Routing Table: 93
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: 4.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2068480
Equivalent to 0 /8s, 31 /16s and 144 /24s
Percentage of available AfriNIC address space announced: 12.3
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 843 4391 162 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
4766 543 3407 266 Korea Internet Exchange for "
9583 534 41 103 Satyam Infoway Ltd.,
4755 373 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 345 161 33 China Netcom Corp.
17557 317 23 158 Pakistan Telecom
703 309 341 238 UUNET
2764 285 272 233 connect.com.au pty ltd
7474 270 269 201 Optus Communications Pty Ltd
9942 236 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9800 230 374 67 CHINA UNICOM
9498 227 50 49 BHARTI BT INTERNET LTD.
7563 221 48 163 Korea Internet Infrastructure
10036 204 19 185 C&M Communication Co. Ltd.
4837 202 2264 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1412 6750 983 AT&T WorldNet Services
701 1261 8437 909 UUNET Technologies, Inc.
1239 938 2867 623 Sprint
3549 851 563 207 Global Crossing
2386 844 532 607 AT&T Data Communications Serv
6197 808 376 348 BellSouth Network Solutions,
4323 798 638 216 Time Warner Telecom
18566 744 208 6 Covad Communications
721 724 21036 299 DLA Systems Automation Center
3356 645 10923 443 Level 3 Communications, LLC
209 629 3465 497 Qwest
20115 590 427 302 Charter Communications
3561 565 2508 428 Cable & Wireless USA
852 512 1142 398 Telus Advanced Communications
7843 492 693 98 Adelphia Corp.
7132 448 8287 376 SBC Internet Services
6198 434 347 208 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
27364 411 36 19 Armstrong Cable Services
5668 403 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2013 520 UUNET - Commercial IP service
3320 301 2470 238 Deutsche Telekom AG
3301 281 1100 271 TeliaNet Sweden
8220 279 461 265 COLT Internet - International
21502 269 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 742 178 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 201 843 147 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
719 157 288 102 LANLINK autonomous system
3215 156 908 76 France Telecom Transpac
6746 154 30 129 Dynamic Network Technologies,
8866 153 20 7 Bulgarian Telecommunication C
3269 150 1259 67 TELECOM ITALIA
25186 150 154 106 France Telecom Transpac's Tra
5400 149 207 120 BT Ignite European Backbone
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 349 139 68 ImpSat
8151 304 439 129 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 206 100 54 Servicios Alestra S.A de C.V
6147 194 94 20 Telefonica Del Peru
11664 169 13 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 134 60 24 Telecom Argentina Stet-France
6503 124 164 85 AVANTEL, S.A.
14117 102 6 4 Telefonica del Sur S.A.
11992 101 9 31 Integrated Systems
11311 88 8 26 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
27716 74 9 12 Eveloz
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
24835 34 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
14988 26 16 1 Botswana Telecommunications C
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
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 744 738 Covad Communications
4134 843 681 Data Communications Bureau
3549 851 644 Global Crossing
4323 798 582 Time Warner Telecom
6197 808 460 BellSouth Network Solutions,
9583 534 431 Satyam Infoway Ltd.,
721 724 425 DLA Systems Automation Center
7843 492 394 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 403 385 Century Telephone
22773 391 373 Cox Communications, Inc. Atla
6467 387 356 E.Spire Communications, Inc.
22909 385 353 Comcast Cable Corporation
701 1261 352 UUNET Technologies, Inc.
4755 373 320 Videsh Sanchar Nigam Ltd. Aut
1239 938 315 Sprint
17676 369 315 XTAGE CORPORATION
9929 345 312 China Netcom Corp.
6478 389 300 AT&T Worldnet Services
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 24.249.231.0/24 15218 COX Communications
64512 PRIVATE 24.249.232.0/24 15218 COX Communications
64512 PRIVATE 24.249.233.0/24 15218 COX Communications
64512 PRIVATE 24.249.234.0/24 15218 COX Communications
64512 PRIVATE 24.249.235.0/24 15218 COX Communications
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking
22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.81.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.91.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.92.0/24 3741 The Internet Solutio
22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking
22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 1136 KPN Telecom OVN IO
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
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 /10:6 /11:15 /12:62
/13:137 /14:311 /15:555 /16:8102 /17:2252 /18:3881
/19:9713 /20:10366 /21:7897 /22:10895 /23:12588 /24:81580
/25:236 /26:217 /27:113 /28:51 /29:30 /30:102
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 729 744 Covad Communications
6197 658 808 BellSouth Network Solutions,
2386 610 844 AT&T Data Communications Serv
7018 561 1412 AT&T WorldNet Services
3549 451 851 Global Crossing
27364 395 411 Armstrong Cable Services
702 380 628 UUNET - Commercial IP service
1239 376 938 Sprint
9583 372 534 Satyam Infoway Ltd.,
4766 363 543 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 349 1261 UUNET Technologies, Inc.
6198 318 434 BellSouth Network Solutions,
20115 300 590 Charter Communications
6467 286 387 E.Spire Communications, Inc.
9929 276 345 China Netcom Corp.
6517 273 296 Yipes Communications, Inc.
13609 266 309 Choice One Communications Inc
21502 266 269 NUMERICABLE is a cabled netwo
4323 254 798 Time Warner Telecom
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:8 12:1409 13:1 15:5 16:2
17:3 18:1 20:6 24:742 32:68 33:2
38:80 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:3 61:580 62:509 63:1833
64:2539 65:2065 66:2464 67:452 68:554 69:736
70:83 80:522 81:538 82:307 83:178 84:40
128:122 129:165 130:87 131:183 132:34 134:188
135:17 136:187 137:54 138:181 139:38 140:184
141:107 142:123 143:69 144:163 145:42 146:326
147:93 148:397 149:110 150:88 151:65 152:151
153:67 154:2 155:128 156:57 157:74 158:142
159:163 160:60 161:70 162:374 163:80 164:214
165:161 166:120 167:222 168:370 169:120 170:279
171:9 192:5583 193:2894 194:2149 195:1510 196:643
198:3676 199:3307 200:3758 201:20 202:4877 203:5737
204:3412 205:2071 206:2424 207:2628 208:2231 209:2990
210:1503 211:639 212:1116 213:1202 214:131 215:30
216:3653 217:1053 218:177 219:101 220:261 221:55
222:43
End of report
