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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 200595
Prefixes after maximum aggregation: 108898
Unique aggregates announced to Internet: 97676
Total ASes present in the Internet Routing Table: 23393
Origin-only ASes present in the Internet Routing Table: 20369
Origin ASes announcing only one prefix: 9810
Transit ASes present in the Internet Routing Table: 3024
Transit-only ASes present in the Internet Routing Table: 73
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: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1615825676
Equivalent to 96 /8s, 79 /16s and 139 /24s
Percentage of available address space announced: 43.6
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 100703
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43767
Total APNIC prefixes after maximum aggregation: 17589
Prefixes being announced from the APNIC address blocks: 41356
Unique aggregates announced from the APNIC address blocks: 18491
APNIC Region origin ASes present in the Internet Routing Table: 2719
APNIC Region origin ASes announcing only one prefix: 761
APNIC Region transit ASes present in the Internet Routing Table: 409
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 263755104
Equivalent to 15 /8s, 184 /16s and 149 /24s
Percentage of available APNIC address space announced: 82.5
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: 100856
Total ARIN prefixes after maximum aggregation: 59532
Prefixes being announced from the ARIN address blocks: 74055
Unique aggregates announced from the ARIN address blocks: 27957
ARIN Region origin ASes present in the Internet Routing Table: 11063
ARIN Region origin ASes announcing only one prefix: 4210
ARIN Region transit ASes present in the Internet Routing Table: 1032
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 304909440
Equivalent to 18 /8s, 44 /16s and 140 /24s
Percentage of available ARIN address space announced: 67.3
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: 40784
Total RIPE prefixes after maximum aggregation: 26971
Prefixes being announced from the RIPE address blocks: 37719
Unique aggregates announced from the RIPE address blocks: 25283
RIPE Region origin ASes present in the Internet Routing Table: 8641
RIPE Region origin ASes announcing only one prefix: 4547
RIPE Region transit ASes present in the Internet Routing Table: 1396
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 267563300
Equivalent to 15 /8s, 242 /16s and 177 /24s
Percentage of available RIPE address space announced: 72.5
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
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: 12841
Total LACNIC prefixes after maximum aggregation: 3878
Prefixes being announced from the LACNIC address blocks: 10841
Unique aggregates announced from the LACNIC address blocks: 6668
LACNIC Region origin ASes present in the Internet Routing Table: 733
LACNIC Region origin ASes announcing only one prefix: 244
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 33191680
Equivalent to 1 /8s, 250 /16s and 119 /24s
Percentage of available LACNIC address space announced: 49.5
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: 2346
Total AfriNIC prefixes after maximum aggregation: 928
Prefixes being announced from the AfriNIC address blocks: 1640
Unique aggregates announced from the AfriNIC address blocks: 1089
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: 28
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4300800
Equivalent to 0 /8s, 65 /16s and 160 /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 1012 255 65 Videsh Sanchar Nigam Ltd. Aut
9583 953 109 15 Sify Limited
9498 857 212 64 BHARTI BT INTERNET LTD.
4766 741 4436 307 Korea Telecom (KIX)
1221 610 1780 469 Telstra Pty Ltd
7545 540 124 74 TPG Internet Pty Ltd
17488 538 33 13 Hathway IP Over Cable Interne
17676 499 10933 63 Softbank BB Corp.
18101 462 86 21 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
17849 430 36 126 Telecommunications Technology
9942 428 77 127 COMindico Australia
4802 413 86 150 Wantree Development
4812 411 741 63 China Telecom (Shanghai)
17557 365 31 176 Pakistan Telecom
2907 333 1733 310 SINET Japan
4837 324 3556 140 chinanet IDC center beijing n
10139 318 23 6 Meridian Telekoms
7474 292 210 226 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1526 6209 986 AT&T WorldNet Services
2386 1181 617 752 AT&T Data Communications Serv
4323 1033 785 293 Time Warner Telecom
6197 1020 634 482 BellSouth Network Solutions,
18566 967 272 8 Covad Communications
701 960 6758 780 UUNET Technologies, Inc.
721 959 21925 306 DLA Systems Automation Center
174 958 6823 884 Cogent Communications
1239 836 2763 586 Sprint
11492 755 90 13 Cable One
20115 745 672 390 Charter Communications
19262 744 2410 177 Verizon Global Networks
22773 720 1744 46 Cox Communications, Inc.
209 708 3633 556 Qwest
7011 682 210 427 Citizens Utilities
852 590 1071 387 Telus Advanced Communications
19916 565 49 54 OLM LLC
5668 537 145 18 CenturyTel Internet Holdings,
855 533 250 74 Canadian Research Network
6478 530 1280 335 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 547 1928 426 UUNET - Commercial IP service
3301 313 1200 297 TeliaNet Sweden
3320 301 5015 246 Deutsche Telekom AG
8220 280 455 266 COLT Telecommunications
24863 273 41 30 LINKdotNET AS number
680 251 2041 247 DFN-IP service G-WiN
6746 246 91 224 Dynamic Network Technologies,
3246 228 469 218 Song Networks
9116 226 134 23 Goldenlines main autonomous s
8708 222 279 209 Romania Data Systems S.A.
3215 214 1872 93 France Telecom Transpac
1257 213 740 169 SWIPnet Swedish IP Network
3269 204 2277 74 TELECOM ITALIA
30890 202 18 77 SC Kappa Invexim SRL
8551 199 182 27 Bezeq International
6830 198 879 43 UPC Distribution Services
8866 188 37 15 Bulgarian Telecommunication C
5416 186 12 11 BATELCO-BH
12715 179 40 29 Jazz Telecom S.A.
3300 173 171 94 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 665 1842 222 UniNet S.A. de C.V.
11830 459 299 27 Instituto Costarricense de El
11172 428 100 92 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6147 264 142 22 Telefonica Del Peru
6471 254 74 30 ENTEL CHILE S.A.
14117 235 15 8 Telefonica del Sur S.A.
7303 208 92 27 Telecom Argentina Stet-France
6503 184 168 85 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 145 19 30 INTERCABLE
23216 142 19 45 RAMtelecom Telecomunicaciones
7910 137 9 15 ANDINET ON LINE
19169 136 9 21 Telconet
19429 136 84 40 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
15475 133 84 4 Nile Online
2018 132 297 111 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
2905 75 157 68 The Internetworking Company o
2561 55 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
12455 38 6 3 Jambonet Autonomous system
5713 36 293 32 Telkom SA Ltd
33774 35 7 21 AS Number for Telecom Algeria
8524 30 2 6 AUCEGYPT Autonomous System
23889 28 9 13 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
4755 1012 947 Videsh Sanchar Nigam Ltd. Aut
9583 953 938 Sify Limited
9498 857 793 BHARTI BT INTERNET LTD.
11492 755 742 Cable One
4323 1033 740 Time Warner Telecom
22773 720 674 Cox Communications, Inc.
721 959 653 DLA Systems Automation Center
19262 744 567 Verizon Global Networks
6197 1020 538 BellSouth Network Solutions,
17488 538 525 Hathway IP Over Cable Interne
5668 537 519 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
7545 540 466 TPG Internet Pty Ltd
855 533 459 Canadian Research Network
8151 665 443 UniNet S.A. de C.V.
18101 462 441 Reliance Infocom Ltd Internet
15270 472 437 PaeTec.net -a division of Pae
17676 499 436 Softbank BB Corp.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S
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 /9:10 /10:13 /11:29 /12:106
/13:214 /14:386 /15:774 /16:9028 /17:3503 /18:5715
/19:12430 /20:14055 /21:12405 /22:15783 /23:17130 /24:107677
/25:461 /26:409 /27:195 /28:70 /29:47 /30:99
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 950 967 Covad Communications
2386 894 1181 AT&T Data Communications Serv
7018 804 1526 AT&T WorldNet Services
6197 801 1020 BellSouth Network Solutions,
9583 781 953 Sify Limited
11492 743 755 Cable One
7011 589 682 Citizens Utilities
19916 559 565 OLM LLC
4766 550 741 Korea Telecom (KIX)
9498 517 857 BHARTI BT INTERNET LTD.
4755 442 1012 Videsh Sanchar Nigam Ltd. Aut
15270 441 472 PaeTec.net -a division of Pae
855 428 533 Canadian Research Network
5668 419 537 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
1239 410 836 Sprint
18101 395 462 Reliance Infocom Ltd Internet
22773 379 720 Cox Communications, Inc.
33588 371 392 Bresnan Communications, LLC.
17488 358 538 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 6:1 8:54 12:1644 13:1 15:16
16:3 17:3 18:4 20:41 24:818 25:1
32:57 38:257 40:57 41:22 44:3 47:6
52:4 53:1 55:1 56:3 57:25 58:222
59:292 60:197 61:905 62:1015 63:1907 64:3128
65:2237 66:3046 67:652 68:649 69:1663 70:405
71:92 72:968 74:88 75:9 80:832 81:711
82:623 83:372 84:398 85:689 86:413 87:475
88:235 89:518 91:27 121:56 122:18 124:416
125:647 128:278 129:227 130:123 131:315 132:35
133:9 134:167 135:50 136:177 137:107 138:184
139:47 140:525 141:131 142:344 143:192 144:239
145:43 146:320 147:138 148:365 149:175 150:115
151:121 152:76 153:121 154:5 155:256 156:160
157:167 158:152 159:172 160:98 161:85 162:216
163:178 164:227 165:235 166:238 167:274 168:487
169:128 170:383 171:11 172:1 189:4 190:247
192:5756 193:3517 194:2741 195:2100 196:894 198:3888
199:3321 200:4520 201:911 202:6908 203:7126 204:3924
205:2119 206:2425 207:2982 208:2298 209:3500 210:2183
211:848 212:1336 213:1502 214:381 215:39 216:4057
217:1151 218:339 219:260 220:796 221:381 222:191
End of report
Report Website: http://thyme.apnic.net
