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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 08 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 174604
Prefixes after maximum aggregation: 98606
Unique aggregates announced to Internet: 84329
Total ASes present in the Internet Routing Table: 20840
Origin-only ASes present in the Internet Routing Table: 18133
Origin ASes announcing only one prefix: 8603
Transit ASes present in the Internet Routing Table: 2707
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1456887968
Equivalent to 86 /8s, 214 /16s and 88 /24s
Percentage of available address space announced: 39.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 83955
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36348
Total APNIC prefixes after maximum aggregation: 15840
Prefixes being announced from the APNIC address blocks: 34121
Unique aggregates announced from the APNIC address blocks: 16847
APNIC Region origin ASes present in the Internet Routing Table: 2389
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204797888
Equivalent to 12 /8s, 52 /16s and 247 /24s
Percentage of available APNIC address space announced: 76.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 92744
Total ARIN prefixes after maximum aggregation: 55722
Prefixes being announced from the ARIN address blocks: 72319
Unique aggregates announced from the ARIN address blocks: 27260
ARIN Region origin ASes present in the Internet Routing Table: 10316
ARIN Region origin ASes announcing only one prefix: 3834
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 274492160
Equivalent to 16 /8s, 92 /16s and 107 /24s
Percentage of available ARIN address space announced: 68.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 33901
Total RIPE prefixes after maximum aggregation: 22920
Prefixes being announced from the RIPE address blocks: 30904
Unique aggregates announced from the RIPE address blocks: 20663
RIPE Region origin ASes present in the Internet Routing Table: 7272
RIPE Region origin ASes announcing only one prefix: 3822
RIPE Region transit ASes present in the Internet Routing Table: 1202
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 222499840
Equivalent to 13 /8s, 67 /16s and 20 /24s
Percentage of available RIPE address space announced: 66.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9797
Total LACNIC prefixes after maximum aggregation: 3288
Prefixes being announced from the LACNIC address blocks: 8086
Unique aggregates announced from the LACNIC address blocks: 4743
LACNIC Region origin ASes present in the Internet Routing Table: 648
LACNIC Region origin ASes announcing only one prefix: 209
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22580480
Equivalent to 1 /8s, 88 /16s and 141 /24s
Percentage of available LACNIC address space announced: 33.6
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1806
Total AfriNIC prefixes after maximum aggregation: 836
Prefixes being announced from the AfriNIC address blocks: 1120
Unique aggregates announced from the AfriNIC address blocks: 821
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2853120
Equivalent to 0 /8s, 43 /16s and 137 /24s
Percentage of available AfriNIC address space announced: 8.5
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1000 6327 214 CHINANET-BACKBONE
9583 817 77 12 Sify Limited
1221 746 1342 515 Telstra Pty Ltd
4755 746 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 287 Korea Telecom (KIX)
7545 511 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 388 211 58 BHARTI BT INTERNET LTD.
17488 366 22 10 Hathway IP Over Cable Interne
2907 340 1764 317 SINET Japan
4802 335 73 153 Wantree Development
17557 334 25 163 Pakistan Telecom
7474 332 258 228 SingTel Optus Pty Ltd
9929 326 216 46 China Netcom Corp.
18302 301 109 167 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 273 65 16 PT TELEKOMUNIKASI INDONESIA
18101 268 68 19 Reliance Infocom Ltd Internet
703 253 258 209 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1472 6324 967 AT&T WorldNet Services
4323 1194 706 233 Time Warner Telecom
721 1071 21938 308 DLA Systems Automation Center
174 1050 5846 983 Cogent Communications
701 1005 8154 845 UUNET Technologies, Inc.
6197 960 407 496 BellSouth Network Solutions,
2386 928 545 692 AT&T Data Communications Serv
18566 872 240 7 Covad Communications
1239 845 2848 595 Sprint
209 651 3605 518 Qwest
20115 641 520 337 Charter Communications
11492 592 81 10 Cable One
852 574 1093 381 Telus Advanced Communications
3602 563 129 107 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 562 247 65 Canadian Research Network
22773 552 1472 27 Cox Communications, Inc.
19262 528 1541 130 Verizon Global Networks
3356 523 10638 403 Level 3 Communications, LLC
6478 492 1299 275 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 611 1961 479 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 238 274 223 Romania Data Systems S.A.
3246 228 475 221 Song Networks
6746 200 51 171 Dynamic Network Technologies,
1257 190 712 168 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 180 1765 68 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 162 316 135 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 159 170 91 AUCS Communications Services
8866 156 37 9 Bulgarian Telecommunication C
12479 150 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
3215 144 1237 78 France Telecom Transpac
24863 143 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 388 658 167 UniNet S.A. de C.V.
16814 296 18 7 NSS, S.A.
11172 279 88 68 Servicios Alestra S.A de C.V
11664 201 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 170 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 146 69 15 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
13999 125 52 9 Mega Cable S.A. de C.V.
19169 124 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
21826 111 14 19 INTERCABLE
6503 108 147 75 AVANTEL, S.A.
11311 99 8 10 Sinectis S.A.
23216 92 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 708 228 The Internet Solution
8452 137 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 106 297 97 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 6 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
16637 24 10 21 Johnnic e-Ventures
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 21 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1194 961 Time Warner Telecom
18566 872 865 Covad Communications
9583 817 805 Sify Limited
4134 1000 786 CHINANET-BACKBONE
721 1071 763 DLA Systems Automation Center
4755 746 679 Videsh Sanchar Nigam Ltd. Aut
11492 592 582 Cable One
22773 552 525 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
6197 960 464 BellSouth Network Solutions,
3602 563 456 Sprint Canada, Inc.
5668 472 446 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
19262 528 398 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
6467 398 350 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 619 332 Korea Telecom (KIX)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
65108 PRIVATE 193.202.224.0/20 4589 Easynet Group
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
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
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 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 /8:18 /9:5 /10:8 /11:17 /12:80
/13:185 /14:339 /15:659 /16:8599 /17:2862 /18:4835
/19:10984 /20:12068 /21:10139 /22:13396 /23:14556 /24:94973
/25:311 /26:272 /27:185 /28:32 /29:11 /30:38
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 856 872 Covad Communications
6197 782 960 BellSouth Network Solutions,
7018 722 1472 AT&T WorldNet Services
2386 641 928 AT&T Data Communications Serv
9583 640 817 Sify Limited
11492 584 592 Cable One
4323 571 1194 Time Warner Telecom
19916 557 563 OLM LLC
855 434 562 Canadian Research Network
4766 425 619 Korea Telecom (KIX)
7011 397 457 Citizens Utilities
702 390 611 UUNET - Commercial IP service
5668 374 472 CenturyTel Internet Holdings,
1239 360 845 Sprint
6198 353 481 BellSouth Network Solutions,
6517 323 349 Yipes Communications, Inc.
15270 315 342 PaeTec.net -a division of Pae
13609 292 333 Choice One Communications Inc
18302 286 301 SK Global co., Ltd
701 282 1005 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:30 12:1615 13:1 15:11 16:3
17:3 18:3 20:41 24:695 30:2 32:68
38:173 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:100 59:91 60:147 61:786
62:807 63:1898 64:2970 65:2132 66:2947 67:682
68:658 69:1323 70:223 71:39 72:443 80:654
81:595 82:493 83:309 84:329 85:364 86:177
87:86 125:32 128:157 129:168 130:95 131:307
132:35 133:1 134:147 135:40 136:168 137:70
138:165 139:70 140:439 141:142 142:401 143:141
144:220 145:34 146:298 147:131 148:268 149:194
150:109 151:70 152:111 153:94 154:5 155:144
156:81 157:117 158:147 159:177 160:87 161:76
162:236 163:148 164:189 165:185 166:154 167:250
168:456 169:144 170:311 171:12 190:1 192:5739
193:3347 194:2429 195:1616 196:694 198:3902 199:3254
200:4241 201:419 202:6213 203:6551 204:3812 205:2041
206:2446 207:2888 208:2027 209:3480 210:1755 211:843
212:1211 213:1346 214:311 215:42 216:3879 217:1162
218:214 219:129 220:523 221:300 222:128
End of report
