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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 03 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 173798
Prefixes after maximum aggregation: 98415
Unique aggregates announced to Internet: 84422
Total ASes present in the Internet Routing Table: 20798
Origin-only ASes present in the Internet Routing Table: 18082
Origin ASes announcing only one prefix: 8569
Transit ASes present in the Internet Routing Table: 2716
Transit-only ASes present in the Internet Routing Table: 73
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1454394144
Equivalent to 86 /8s, 176 /16s and 75 /24s
Percentage of available address space announced: 39.2
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 83268
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36215
Total APNIC prefixes after maximum aggregation: 15821
Prefixes being announced from the APNIC address blocks: 33986
Unique aggregates announced from the APNIC address blocks: 16810
APNIC Region origin ASes present in the Internet Routing Table: 2383
APNIC Region origin ASes announcing only one prefix: 691
APNIC Region transit ASes present in the Internet Routing Table: 364
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204605312
Equivalent to 12 /8s, 50 /16s and 7 /24s
Percentage of available APNIC address space announced: 75.9
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: 92249
Total ARIN prefixes after maximum aggregation: 55624
Prefixes being announced from the ARIN address blocks: 71883
Unique aggregates announced from the ARIN address blocks: 27241
ARIN Region origin ASes present in the Internet Routing Table: 10299
ARIN Region origin ASes announcing only one prefix: 3812
ARIN Region transit ASes present in the Internet Routing Table: 962
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273930240
Equivalent to 16 /8s, 83 /16s and 216 /24s
Percentage of available ARIN address space announced: 68.0
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: 33747
Total RIPE prefixes after maximum aggregation: 22862
Prefixes being announced from the RIPE address blocks: 30753
Unique aggregates announced from the RIPE address blocks: 20613
RIPE Region origin ASes present in the Internet Routing Table: 7255
RIPE Region origin ASes announcing only one prefix: 3815
RIPE Region transit ASes present in the Internet Routing Table: 1207
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221856960
Equivalent to 13 /8s, 57 /16s and 68 /24s
Percentage of available RIPE address space announced: 66.1
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: 9773
Total LACNIC prefixes after maximum aggregation: 3276
Prefixes being announced from the LACNIC address blocks: 8080
Unique aggregates announced from the LACNIC address blocks: 4671
LACNIC Region origin ASes present in the Internet Routing Table: 646
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22488832
Equivalent to 1 /8s, 87 /16s and 39 /24s
Percentage of available LACNIC address space announced: 33.5
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: 1807
Total AfriNIC prefixes after maximum aggregation: 832
Prefixes being announced from the AfriNIC address blocks: 1129
Unique aggregates announced from the AfriNIC address blocks: 829
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: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2849536
Equivalent to 0 /8s, 43 /16s and 123 /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 1001 6327 214 CHINANET-BACKBONE
9583 818 77 12 Sify Limited
1221 750 1343 516 Telstra Pty Ltd
4755 744 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 623 3927 291 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 339 1763 316 SINET Japan
17557 334 25 163 Pakistan Telecom
7474 332 258 228 SingTel Optus Pty Ltd
4802 331 73 156 Wantree Development
9929 326 216 46 China Netcom Corp.
18302 294 109 170 SK Global co., Ltd
9837 274 79 175 Powertel Ltd
17974 274 65 16 PT TELEKOMUNIKASI INDONESIA
18101 267 68 19 Reliance Infocom Ltd Internet
703 253 243 209 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6326 976 AT&T WorldNet Services
4323 1192 705 232 Time Warner Telecom
721 1071 21938 308 DLA Systems Automation Center
174 1044 5846 984 Cogent Communications
701 1003 8152 843 UUNET Technologies, Inc.
6197 960 407 495 BellSouth Network Solutions,
2386 926 545 690 AT&T Data Communications Serv
18566 869 240 7 Covad Communications
1239 850 2851 599 Sprint
209 650 3604 515 Qwest
20115 639 518 335 Charter Communications
3602 569 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 562 247 65 Canadian Research Network
22773 547 1356 28 Cox Communications, Inc.
3356 530 10638 406 Level 3 Communications, LLC
19262 523 1533 137 Verizon Global Networks
852 495 1093 381 Telus Advanced Communications
6198 489 577 212 BellSouth Network Solutions,
5668 478 143 26 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 1961 479 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 237 274 222 Romania Data Systems S.A.
3246 227 475 220 Song Networks
6746 196 50 168 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
786 175 1795 175 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 92 AUCS Communications Services
8866 158 37 9 Bulgarian Telecommunication C
25186 148 211 104 France Telecom Transpac's Tra
24863 145 37 6 LINKdotNET AS number
3215 143 1237 78 France Telecom Transpac
12479 139 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 384 641 165 UniNet S.A. de C.V.
16814 296 18 7 NSS, S.A.
11172 278 88 67 Servicios Alestra S.A de C.V
11664 200 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 143 68 20 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
13999 126 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 136 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 93 295 85 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 72 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 19 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1192 960 Time Warner Telecom
18566 869 862 Covad Communications
9583 818 806 Sify Limited
4134 1001 787 CHINANET-BACKBONE
721 1071 763 DLA Systems Automation Center
4755 744 677 Videsh Sanchar Nigam Ltd. Aut
22773 547 519 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
6197 960 465 BellSouth Network Solutions,
3602 569 460 Sprint Canada, Inc.
5668 478 452 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
19262 523 386 Verizon Global Networks
17676 470 370 Softbank BB Corp.
11492 367 357 Cable One
17488 366 356 Hathway IP Over Cable Interne
6467 396 348 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 623 332 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
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 /12:79
/13:184 /14:337 /15:655 /16:8597 /17:2861 /18:4814
/19:10946 /20:12008 /21:10097 /22:13332 /23:14400 /24:94526
/25:328 /26:281 /27:191 /28:32 /29:11 /30:39
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 853 869 Covad Communications
6197 782 960 BellSouth Network Solutions,
7018 722 1482 AT&T WorldNet Services
9583 641 818 Sify Limited
2386 639 926 AT&T Data Communications Serv
4323 570 1192 Time Warner Telecom
19916 557 563 OLM LLC
855 434 562 Canadian Research Network
4766 429 623 Korea Telecom (KIX)
7011 393 453 Citizens Utilities
702 389 610 UUNET - Commercial IP service
5668 380 478 CenturyTel Internet Holdings,
1239 360 850 Sprint
11492 359 367 Cable One
6198 352 489 BellSouth Network Solutions,
6517 322 348 Yipes Communications, Inc.
15270 314 341 PaeTec.net -a division of Pae
13609 292 333 Choice One Communications Inc
701 282 1003 UUNET Technologies, Inc.
18302 279 294 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:30 12:1606 13:1 15:11 16:3
17:3 18:3 20:41 24:570 30:2 32:68
38:168 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:97 59:90 60:147 61:786
62:789 63:1894 64:2965 65:2125 66:2961 67:638
68:656 69:1291 70:219 71:33 72:418 80:658
81:598 82:489 83:310 84:333 85:375 86:156
87:73 125:29 128:157 129:168 130:97 131:307
132:36 133:1 134:147 135:40 136:168 137:69
138:170 139:70 140:432 141:139 142:401 143:143
144:221 145:34 146:298 147:131 148:269 149:199
150:108 151:67 152:111 153:93 154:5 155:144
156:79 157:116 158:148 159:177 160:87 161:76
162:236 163:147 164:166 165:184 166:155 167:255
168:454 169:144 170:310 171:12 190:1 192:5739
193:3332 194:2431 195:1584 196:703 198:3919 199:3257
200:4245 201:412 202:6206 203:6535 204:3815 205:2041
206:2450 207:2871 208:2026 209:3448 210:1737 211:840
212:1212 213:1348 214:311 215:41 216:3872 217:1156
218:215 219:130 220:510 221:298 222:128
End of report
