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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 200021
Prefixes after maximum aggregation: 108697
Unique aggregates announced to Internet: 97046
Total ASes present in the Internet Routing Table: 23344
Origin-only ASes present in the Internet Routing Table: 20337
Origin ASes announcing only one prefix: 9782
Transit ASes present in the Internet Routing Table: 3007
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 1
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1614560012
Equivalent to 96 /8s, 60 /16s and 59 /24s
Percentage of available address space announced: 43.6
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 100304
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43872
Total APNIC prefixes after maximum aggregation: 17542
Prefixes being announced from the APNIC address blocks: 41517
Unique aggregates announced from the APNIC address blocks: 18414
APNIC Region origin ASes present in the Internet Routing Table: 2716
APNIC Region origin ASes announcing only one prefix: 759
APNIC Region transit ASes present in the Internet Routing Table: 405
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 263554400
Equivalent to 15 /8s, 181 /16s and 133 /24s
Percentage of available APNIC address space announced: 82.4
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, 121/8, 122/7, 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: 100601
Total ARIN prefixes after maximum aggregation: 59486
Prefixes being announced from the ARIN address blocks: 73854
Unique aggregates announced from the ARIN address blocks: 27891
ARIN Region origin ASes present in the Internet Routing Table: 11053
ARIN Region origin ASes announcing only one prefix: 4206
ARIN Region transit ASes present in the Internet Routing Table: 1031
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 304429440
Equivalent to 18 /8s, 37 /16s and 57 /24s
Percentage of available ARIN address space announced: 67.2
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 40707
Total RIPE prefixes after maximum aggregation: 26885
Prefixes being announced from the RIPE address blocks: 37623
Unique aggregates announced from the RIPE address blocks: 25220
RIPE Region origin ASes present in the Internet Routing Table: 8607
RIPE Region origin ASes announcing only one prefix: 4523
RIPE Region transit ASes present in the Internet Routing Table: 1390
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 267321636
Equivalent to 15 /8s, 239 /16s and 1 /24s
Percentage of available RIPE address space announced: 72.4
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
40960-41983
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12523
Total LACNIC prefixes after maximum aggregation: 3855
Prefixes being announced from the LACNIC address blocks: 10550
Unique aggregates announced from the LACNIC address blocks: 6261
LACNIC Region origin ASes present in the Internet Routing Table: 733
LACNIC Region origin ASes announcing only one prefix: 246
LACNIC Region transit ASes present in the Internet Routing Table: 127
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 33027584
Equivalent to 1 /8s, 247 /16s and 246 /24s
Percentage of available LACNIC address space announced: 49.2
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: 2317
Total AfriNIC prefixes after maximum aggregation: 929
Prefixes being announced from the AfriNIC address blocks: 1639
Unique aggregates announced from the AfriNIC address blocks: 1087
AfriNIC Region origin ASes present in the Internet Routing Table: 164
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4295680
Equivalent to 0 /8s, 65 /16s and 140 /24s
Percentage of available AfriNIC address space announced: 12.8
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 1245 8270 238 CHINANET-BACKBONE
4755 1009 255 67 Videsh Sanchar Nigam Ltd. Aut
9583 961 109 15 Sify Limited
9498 864 212 70 BHARTI BT INTERNET LTD.
4766 741 4436 307 Korea Telecom (KIX)
1221 607 1780 466 Telstra Pty Ltd
7545 540 124 74 TPG Internet Pty Ltd
17488 534 33 12 Hathway IP Over Cable Interne
17676 499 10933 63 Softbank BB Corp.
18101 459 85 18 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
17849 430 36 126 Telecommunications Technology
9942 428 77 127 COMindico Australia
4802 414 86 151 Wantree Development
4812 411 741 63 China Telecom (Shanghai)
17974 367 129 12 PT TELEKOMUNIKASI INDONESIA
17557 362 30 177 Pakistan Telecom
2907 336 1734 312 SINET Japan
10139 327 23 6 Meridian Telekoms
4837 324 3556 140 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1509 6207 972 AT&T WorldNet Services
2386 1170 614 744 AT&T Data Communications Serv
4323 1030 784 294 Time Warner Telecom
6197 1020 617 495 BellSouth Network Solutions,
18566 967 272 8 Covad Communications
701 959 6742 785 UUNET Technologies, Inc.
721 959 21909 305 DLA Systems Automation Center
174 958 6823 884 Cogent Communications
1239 833 2763 587 Sprint
11492 755 90 13 Cable One
20115 748 672 392 Charter Communications
19262 741 2391 179 Verizon Global Networks
22773 715 1744 46 Cox Communications, Inc.
209 706 3632 555 Qwest
7011 684 210 429 Citizens Utilities
6478 591 1270 385 AT&T Worldnet Services
852 590 1070 387 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 546 250 74 Canadian Research Network
5668 539 145 19 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 544 1928 423 UUNET - Commercial IP service
3301 310 1200 294 TeliaNet Sweden
3320 300 5013 245 Deutsche Telekom AG
8220 279 455 265 COLT Telecommunications
24863 273 41 30 LINKdotNET AS number
680 251 2041 247 DFN-IP service G-WiN
6746 247 91 225 Dynamic Network Technologies,
3246 228 469 218 Song Networks
8708 222 279 209 Romania Data Systems S.A.
9116 220 134 23 Goldenlines main autonomous s
3215 214 1872 93 France Telecom Transpac
1257 208 740 168 SWIPnet Swedish IP Network
3269 204 2277 74 TELECOM ITALIA
30890 203 18 78 SC Kappa Invexim SRL
8551 200 182 27 Bezeq International
6830 197 879 43 UPC Distribution Services
5416 186 12 11 BATELCO-BH
8866 186 37 15 Bulgarian Telecommunication C
3300 175 171 96 AUCS Communications Services
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 618 1811 224 UniNet S.A. de C.V.
11172 381 100 93 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
11830 285 299 9 Instituto Costarricense de El
6147 264 140 24 Telefonica Del Peru
6471 255 74 30 ENTEL CHILE S.A.
14117 235 15 8 Telefonica del Sur S.A.
7303 208 92 27 Telecom Argentina Stet-France
10481 181 72 8 Prima S.A.
6503 177 167 83 AVANTEL, S.A.
21826 145 19 30 INTERCABLE
23216 145 19 44 RAMtelecom Telecomunicaciones
7910 137 9 18 ANDINET ON LINE
19169 136 9 21 Telconet
19429 134 83 39 E.T.B.
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
14522 118 18 9 SatNet S.A.
7738 115 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 295 804 234 The Internet Solution
8452 173 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
2018 134 297 111 Tertiary Education Network
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 108 6 3 EEPAD TISP TELECOM & INTERNET
15475 102 84 4 Nile Online
2905 75 157 68 The Internetworking Company o
2561 55 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
12455 37 6 3 Jambonet Autonomous system
5713 36 293 32 Telkom SA Ltd
33774 34 7 21 AS Number for Telecom Algeria
8524 30 2 6 AUCEGYPT Autonomous System
23889 27 8 12 MAURITIUS TELECOM
21280 26 4 4 Swift Global Kenya Ltd.Is an
16637 24 19 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
21491 23 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1245 1007 CHINANET-BACKBONE
18566 967 959 Covad Communications
9583 961 946 Sify Limited
4755 1009 942 Videsh Sanchar Nigam Ltd. Aut
9498 864 794 BHARTI BT INTERNET LTD.
11492 755 742 Cable One
4323 1030 736 Time Warner Telecom
22773 715 669 Cox Communications, Inc.
721 959 654 DLA Systems Automation Center
19262 741 562 Verizon Global Networks
6197 1020 525 BellSouth Network Solutions,
17488 534 522 Hathway IP Over Cable Interne
5668 539 520 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
855 546 472 Canadian Research Network
7545 540 466 TPG Internet Pty Ltd
18101 459 441 Reliance Infocom Ltd Internet
17676 499 436 Softbank BB Corp.
15270 471 436 PaeTec.net -a division of Pae
4766 741 434 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
172.33.1.0/24 7018 AT&T WorldNet Services
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
192.172.0.0/19 721 DLA Systems Automation Center
192.249.0.0/20 3450 University of Tennessee, Knox
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:9 /10:13 /11:29 /12:106
/13:214 /14:386 /15:772 /16:9039 /17:3503 /18:5724
/19:12347 /20:13984 /21:12345 /22:15654 /23:17040 /24:107529
/25:458 /26:415 /27:191 /28:70 /29:42 /30:95
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 950 967 Covad Communications
2386 887 1170 AT&T Data Communications Serv
6197 802 1020 BellSouth Network Solutions,
7018 797 1509 AT&T WorldNet Services
9583 793 961 Sify Limited
11492 743 755 Cable One
7011 591 684 Citizens Utilities
19916 559 565 OLM LLC
4766 550 741 Korea Telecom (KIX)
9498 516 864 BHARTI BT INTERNET LTD.
15270 440 471 PaeTec.net -a division of Pae
4755 439 1009 Videsh Sanchar Nigam Ltd. Aut
855 426 546 Canadian Research Network
5668 421 539 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
1239 407 833 Sprint
18101 393 459 Reliance Infocom Ltd Internet
22773 374 715 Cox Communications, Inc.
33588 371 392 Bresnan Communications, LLC.
17488 354 534 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:53 12:1647 13:1 15:16 16:3
17:3 18:4 20:41 24:818 25:1 32:58
38:257 40:56 41:22 44:3 47:7 52:4
53:1 55:1 56:3 57:25 58:223 59:289
60:218 61:901 62:947 63:1907 64:3149 65:2244
66:3009 67:648 68:643 69:1652 70:402 71:92
72:946 74:84 75:9 80:833 81:703 82:607
83:402 84:401 85:688 86:396 87:583 88:229
89:508 91:24 121:52 122:18 124:417 125:657
128:283 129:229 130:122 131:313 132:35 133:9
134:167 135:50 136:177 137:105 138:130 139:47
140:527 141:134 142:344 143:193 144:237 145:43
146:321 147:137 148:359 149:177 150:115 151:121
152:76 153:121 154:5 155:254 156:161 157:167
158:155 159:171 160:98 161:85 162:216 163:161
164:228 165:217 166:240 167:248 168:488 169:128
170:377 171:11 172:1 189:2 190:236 192:5763
193:3510 194:2737 195:2104 196:894 198:3888 199:3312
200:4492 201:967 202:6946 203:7146 204:3920 205:2107
206:2415 207:2957 208:2297 209:3501 210:2181 211:842
212:1312 213:1492 214:370 215:39 216:4053 217:1144
218:336 219:260 220:794 221:385 222:231
End of report
Report Website: http://thyme.apnic.net
