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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 11 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171251
Prefixes after maximum aggregation: 97731
Unique aggregates announced to Internet: 82898
Total ASes present in the Internet Routing Table: 20651
Origin-only ASes present in the Internet Routing Table: 17952
Origin ASes announcing only one prefix: 8517
Transit ASes present in the Internet Routing Table: 2699
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: 25
Prefixes from unregistered ASNs in the Routing Table: 21
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1430940800
Equivalent to 85 /8s, 74 /16s and 108 /24s
Percentage of available address space announced: 38.6
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35480
Total APNIC prefixes after maximum aggregation: 15680
Prefixes being announced from the APNIC address blocks: 33301
Unique aggregates announced from the APNIC address blocks: 16598
APNIC Region origin ASes present in the Internet Routing Table: 2382
APNIC Region origin ASes announcing only one prefix: 701
APNIC Region transit ASes present in the Internet Routing Table: 360
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 202463616
Equivalent to 12 /8s, 17 /16s and 89 /24s
Percentage of available APNIC address space announced: 75.1
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: 91041
Total ARIN prefixes after maximum aggregation: 55356
Prefixes being announced from the ARIN address blocks: 71120
Unique aggregates announced from the ARIN address blocks: 26357
ARIN Region origin ASes present in the Internet Routing Table: 10244
ARIN Region origin ASes announcing only one prefix: 3778
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: 271710464
Equivalent to 16 /8s, 49 /16s and 249 /24s
Percentage of available ARIN address space announced: 67.5
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: 33299
Total RIPE prefixes after maximum aggregation: 22625
Prefixes being announced from the RIPE address blocks: 30318
Unique aggregates announced from the RIPE address blocks: 20295
RIPE Region origin ASes present in the Internet Routing Table: 7180
RIPE Region origin ASes announcing only one prefix: 3793
RIPE Region transit ASes present in the Internet Routing Table: 1196
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 219745856
Equivalent to 13 /8s, 25 /16s and 14 /24s
Percentage of available RIPE address space announced: 65.5
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: 9648
Total LACNIC prefixes after maximum aggregation: 3246
Prefixes being announced from the LACNIC address blocks: 7991
Unique aggregates announced from the LACNIC address blocks: 4698
LACNIC Region origin ASes present in the Internet Routing Table: 640
LACNIC Region origin ASes announcing only one prefix: 201
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: 25
Number of LACNIC addresses announced to Internet: 22276352
Equivalent to 1 /8s, 83 /16s and 233 /24s
Percentage of available LACNIC address space announced: 33.2
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: 1757
Total AfriNIC prefixes after maximum aggregation: 824
Prefixes being announced from the AfriNIC address blocks: 1066
Unique aggregates announced from the AfriNIC address blocks: 792
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 44
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: 2837760
Equivalent to 0 /8s, 43 /16s and 77 /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 995 6236 210 CHINANET-BACKBONE
9583 803 77 12 Sify Limited
1221 752 1330 514 Telstra Pty Ltd
4755 716 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 618 3927 290 Korea Telecom (KIX)
7545 510 108 72 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 347 211 57 BHARTI BT INTERNET LTD.
2907 337 1763 314 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
17557 329 39 161 Pakistan Telecom
4802 318 70 159 Wantree Development
18302 295 109 162 SK Global co., Ltd
9837 276 79 176 Powertel Ltd
17974 271 65 14 PT TELEKOMUNIKASI INDONESIA
18101 262 68 18 Reliance Infocom Ltd Internet
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1517 6362 995 AT&T WorldNet Services
4323 1181 705 228 Time Warner Telecom
721 1069 21938 309 DLA Systems Automation Center
174 1059 5848 993 Cogent Communications
701 1001 8121 838 UUNET Technologies, Inc.
6197 946 399 489 BellSouth Network Solutions,
2386 928 513 689 AT&T Data Communications Serv
1239 861 2852 605 Sprint
18566 858 240 7 Covad Communications
209 630 3552 497 Qwest
20115 626 511 330 Charter Communications
3602 561 131 109 Sprint Canada, Inc.
3356 546 10656 420 Level 3 Communications, LLC
22773 546 1356 31 Cox Communications, Inc.
3561 545 2410 418 Savvis
5668 477 147 24 CenturyTel Internet Holdings,
6198 476 417 230 BellSouth Network Solutions,
19262 471 1423 120 Verizon Global Networks
7132 468 5043 399 SBC Internet Services
852 436 1092 382 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 1993 480 UUNET - Commercial IP service
3301 303 1081 289 TeliaNet Sweden
3320 284 3230 239 Deutsche Telekom AG
8220 268 475 263 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 244 274 223 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 194 712 172 SWIPnet Swedish IP Network
6746 189 50 164 Dynamic Network Technologies,
5515 181 777 127 Sonera Solution Autonomous Sy
3269 178 1638 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 170 289 143 BT Ignite European Backbone
8866 160 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 152 227 107 France Telecom Transpac's Tra
3215 140 1205 82 France Telecom Transpac
24863 138 37 6 LINKdotNET AS number
1273 137 177 95 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 400 650 170 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 278 85 65 Servicios Alestra S.A de C.V
11664 202 22 19 Keytech SA
19632 195 14 5 Metropolis Intercom S.A.
6147 190 116 23 Telefonica Del Peru
22047 170 128 7 VTR PUNTO NET S.A.
14117 155 10 5 Telefonica del Sur S.A.
7303 145 68 17 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 119 52 9 Mega Cable S.A. de C.V.
6503 112 148 73 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 103 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
21826 99 12 30 INTERCABLE
23216 88 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 116 44 7 TEDATA
2018 95 295 86 Tertiary Education Network
15475 82 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
5713 38 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 3 19 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
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
15804 18 2 1 AS of The Way Out Internet So
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1181 953 Time Warner Telecom
18566 858 851 Covad Communications
9583 803 791 Sify Limited
4134 995 785 CHINANET-BACKBONE
721 1069 760 DLA Systems Automation Center
4755 716 649 Videsh Sanchar Nigam Ltd. Aut
22773 546 515 Cox Communications, Inc.
6197 946 457 BellSouth Network Solutions,
5668 477 453 CenturyTel Internet Holdings,
3602 561 452 Sprint Canada, Inc.
7545 510 438 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
6467 401 353 E.Spire Communications, Inc.
19262 471 351 Verizon Global Networks
11492 342 332 Cable One
4766 618 328 Korea Telecom (KIX)
17488 336 327 Hathway IP Over Cable Interne
15270 346 318 PaeTec.net -a division of Pae
9443 392 314 Primus Telecommunications
13609 332 302 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 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 /8:17 /9:5 /10:8 /11:17 /12:80
/13:180 /14:328 /15:642 /16:8532 /17:2816 /18:4739
/19:10818 /20:11852 /21:9890 /22:13234 /23:14208 /24:92987
/25:325 /26:281 /27:177 /28:33 /29:11 /30:37
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 842 858 Covad Communications
6197 773 946 BellSouth Network Solutions,
7018 736 1517 AT&T WorldNet Services
2386 640 928 AT&T Data Communications Serv
9583 626 803 Sify Limited
4323 560 1181 Time Warner Telecom
4766 426 618 Korea Telecom (KIX)
702 384 607 UUNET - Commercial IP service
5668 382 477 CenturyTel Internet Holdings,
1239 368 861 Sprint
7011 366 425 Citizens Utilities
19916 363 369 OLM LLC
6198 349 476 BellSouth Network Solutions,
11492 334 342 Cable One
6517 320 346 Yipes Communications, Inc.
15270 316 346 PaeTec.net -a division of Pae
13609 289 332 Choice One Communications Inc
701 285 1001 UUNET Technologies, Inc.
18302 280 295 SK Global co., Ltd
22773 277 546 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:25 12:1602 13:1 15:11 16:3
17:3 18:3 20:31 24:559 30:3 32:67
38:162 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:94 59:69 60:139 61:756
62:779 63:1891 64:2908 65:2080 66:2965 67:637
68:658 69:1237 70:208 71:27 72:403 80:634
81:578 82:497 83:302 84:271 85:337 86:130
87:58 125:11 128:149 129:168 130:96 131:296
132:35 133:1 134:146 135:43 136:160 137:66
138:165 139:63 140:462 141:141 142:148 143:142
144:219 145:34 146:302 147:112 148:278 149:188
150:107 151:73 152:112 153:94 154:5 155:140
156:80 157:113 158:164 159:173 160:87 161:75
162:236 163:147 164:191 165:170 166:152 167:259
168:441 169:142 170:307 171:8 190:1 192:5721
193:3303 194:2418 195:1563 196:658 198:3888 199:3230
200:4234 201:354 202:6101 203:6460 204:3820 205:2047
206:2444 207:2844 208:2032 209:3399 210:1675 211:823
212:1207 213:1363 214:302 215:39 216:3713 217:1143
218:220 219:132 220:506 221:287 222:125
End of report
