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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 18 Sep, 2006
Analysis Summary
----------------
BGP routing table entries examined: 197924
Prefixes after maximum aggregation: 108023
Unique aggregates announced to Internet: 96016
Total ASes present in the Internet Routing Table: 23152
Origin-only ASes present in the Internet Routing Table: 20180
Origin ASes announcing only one prefix: 9690
Transit ASes present in the Internet Routing Table: 2972
Transit-only ASes present in the Internet Routing Table: 66
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: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1596695116
Equivalent to 95 /8s, 43 /16s and 162 /24s
Percentage of available address space announced: 43.1
Percentage of allocated address space announced: 61.1
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 99072
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43387
Total APNIC prefixes after maximum aggregation: 17431
Prefixes being announced from the APNIC address blocks: 40985
Unique aggregates announced from the APNIC address blocks: 18359
APNIC Region origin ASes present in the Internet Routing Table: 2700
APNIC Region origin ASes announcing only one prefix: 758
APNIC Region transit ASes present in the Internet Routing Table: 404
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 262331744
Equivalent to 15 /8s, 162 /16s and 221 /24s
Percentage of available APNIC address space announced: 82.0
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, 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: 100137
Total ARIN prefixes after maximum aggregation: 59268
Prefixes being announced from the ARIN address blocks: 73357
Unique aggregates announced from the ARIN address blocks: 27664
ARIN Region origin ASes present in the Internet Routing Table: 10984
ARIN Region origin ASes announcing only one prefix: 4156
ARIN Region transit ASes present in the Internet Routing Table: 1010
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 298246656
Equivalent to 17 /8s, 198 /16s and 226 /24s
Percentage of available ARIN address space announced: 77.3
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 39949
Total RIPE prefixes after maximum aggregation: 26590
Prefixes being announced from the RIPE address blocks: 36924
Unique aggregates announced from the RIPE address blocks: 24873
RIPE Region origin ASes present in the Internet Routing Table: 8518
RIPE Region origin ASes announcing only one prefix: 4481
RIPE Region transit ASes present in the Internet Routing Table: 1374
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 265918436
Equivalent to 15 /8s, 217 /16s and 151 /24s
Percentage of available RIPE address space announced: 72.0
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: 12129
Total LACNIC prefixes after maximum aggregation: 3822
Prefixes being announced from the LACNIC address blocks: 10171
Unique aggregates announced from the LACNIC address blocks: 6088
LACNIC Region origin ASes present in the Internet Routing Table: 726
LACNIC Region origin ASes announcing only one prefix: 248
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: 24
Number of LACNIC addresses announced to Internet: 32611328
Equivalent to 1 /8s, 241 /16s and 156 /24s
Percentage of available LACNIC address space announced: 48.6
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: 2321
Total AfriNIC prefixes after maximum aggregation: 912
Prefixes being announced from the AfriNIC address blocks: 1602
Unique aggregates announced from the AfriNIC address blocks: 1016
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4242176
Equivalent to 0 /8s, 64 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 12.6
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 1305 8118 239 CHINANET-BACKBONE
4755 985 255 67 Videsh Sanchar Nigam Ltd. Aut
9583 952 109 15 Sify Limited
9498 850 212 71 BHARTI BT INTERNET LTD.
4766 736 4436 307 Korea Telecom (KIX)
1221 609 1780 467 Telstra Pty Ltd
7545 536 124 71 TPG Internet Pty Ltd
17488 530 33 12 Hathway IP Over Cable Interne
17676 497 10933 62 Softbank BB Corp.
9443 454 111 74 Primus Telecommunications
18101 453 85 18 Reliance Infocom Ltd Internet
17849 424 31 127 Telecommunications Technology
4802 411 84 150 Wantree Development
4812 396 741 60 China Telecom (Shanghai)
17974 374 129 12 PT TELEKOMUNIKASI INDONESIA
17557 353 28 168 Pakistan Telecom
2907 337 1734 312 SINET Japan
10139 329 23 6 Meridian Telekoms
4837 323 3555 138 chinanet IDC center beijing n
7474 284 210 221 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1493 6259 963 AT&T WorldNet Services
6197 1026 614 494 BellSouth Network Solutions,
2386 1024 569 774 AT&T Data Communications Serv
4323 1015 776 291 Time Warner Telecom
721 980 21909 306 DLA Systems Automation Center
174 971 6794 904 Cogent Communications
18566 961 272 8 Covad Communications
701 945 6743 773 UUNET Technologies, Inc.
1239 842 2765 593 Sprint
19262 738 2280 189 Verizon Global Networks
20115 738 660 384 Charter Communications
11492 737 90 12 Cable One
209 707 3631 556 Qwest
22773 703 1744 45 Cox Communications, Inc.
7011 666 207 420 Citizens Utilities
852 588 1069 385 Telus Advanced Communications
6478 577 1257 378 AT&T Worldnet Services
19916 565 49 54 OLM LLC
855 545 248 69 Canadian Research Network
5668 537 145 18 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1944 428 UUNET - Commercial IP service
3301 315 1186 299 TeliaNet Sweden
3320 297 5013 242 Deutsche Telekom AG
8220 279 455 265 COLT Telecommunications
24863 268 42 14 LINKdotNET AS number
680 248 2041 244 DFN-IP service G-WiN
6746 244 90 223 Dynamic Network Technologies,
3246 228 469 218 Song Networks
9116 222 134 23 Goldenlines main autonomous s
1257 221 740 168 SWIPnet Swedish IP Network
8708 216 278 203 Romania Data Systems S.A.
3215 208 1816 95 France Telecom Transpac
3269 204 2262 74 TELECOM ITALIA
8551 202 182 27 Bezeq International
30890 201 18 79 SC Kappa Invexim SRL
6830 198 879 43 UPC Distribution Services
8866 186 37 15 Bulgarian Telecommunication C
5416 180 12 11 BATELCO-BH
3300 173 171 96 AUCS Communications Services
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 638 1811 227 UniNet S.A. de C.V.
11172 372 98 89 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6147 277 142 23 Telefonica Del Peru
6471 256 74 30 ENTEL CHILE S.A.
7303 187 88 18 Telecom Argentina Stet-France
6503 184 167 84 AVANTEL, S.A.
14117 184 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
21826 141 18 25 INTERCABLE
7910 139 9 19 ANDINET ON LINE
11556 132 96 4 Cable-Wireless Panama
19429 132 81 39 E.T.B.
19169 130 8 39 Telconet
18822 129 8 10 TELEFONICA MANQUEHUE
14522 117 18 9 SatNet S.A.
7738 113 410 20 Telecomunicacoes da Bahia S.A
14259 112 10 15 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 803 231 The Internet Solution
8452 172 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
15475 141 84 4 Nile Online
2018 136 298 112 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 107 6 2 EEPAD TISP TELECOM & INTERNET
2905 80 159 71 The Internetworking Company o
2561 68 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
5713 36 293 32 Telkom SA Ltd
33774 32 7 20 AS Number for Telecom Algeria
16637 25 19 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
12455 23 6 3 Jambonet Autonomous system
21280 23 4 4 Swift Global Kenya Ltd.Is an
23889 23 8 11 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
21491 22 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1305 1066 CHINANET-BACKBONE
18566 961 953 Covad Communications
9583 952 937 Sify Limited
4755 985 918 Videsh Sanchar Nigam Ltd. Aut
9498 850 779 BHARTI BT INTERNET LTD.
11492 737 725 Cable One
4323 1015 724 Time Warner Telecom
721 980 674 DLA Systems Automation Center
22773 703 658 Cox Communications, Inc.
19262 738 549 Verizon Global Networks
6197 1026 532 BellSouth Network Solutions,
5668 537 519 CenturyTel Internet Holdings,
17488 530 518 Hathway IP Over Cable Interne
19916 565 511 OLM LLC
855 545 476 Canadian Research Network
7545 536 465 TPG Internet Pty Ltd
17676 497 435 Softbank BB Corp.
15270 470 435 PaeTec.net -a division of Pae
18101 453 435 Reliance Infocom Ltd Internet
4766 736 429 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
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 /8:18 /9:10 /10:13 /11:31 /12:104
/13:212 /14:385 /15:756 /16:9006 /17:3461 /18:5668
/19:12253 /20:13834 /21:12164 /22:15433 /23:16660 /24:106610
/25:432 /26:441 /27:190 /28:65 /29:43 /30:87
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 944 961 Covad Communications
6197 807 1026 BellSouth Network Solutions,
9583 781 952 Sify Limited
7018 780 1493 AT&T WorldNet Services
2386 742 1024 AT&T Data Communications Serv
11492 725 737 Cable One
7011 571 666 Citizens Utilities
19916 559 565 OLM LLC
4766 546 736 Korea Telecom (KIX)
9498 506 850 BHARTI BT INTERNET LTD.
15270 439 470 PaeTec.net -a division of Pae
855 424 545 Canadian Research Network
4755 421 985 Videsh Sanchar Nigam Ltd. Aut
5668 420 537 CenturyTel Internet Holdings,
17849 412 424 Telecommunications Technology
1239 408 842 Sprint
18101 387 453 Reliance Infocom Ltd Internet
7066 371 470 Virginia Polytechnic Institut
22773 370 703 Cox Communications, Inc.
33588 355 376 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:47 11:1 12:1634 13:1 15:16
16:3 17:3 18:4 20:41 24:820 25:1
32:60 38:255 40:55 41:14 44:3 47:6
52:4 55:1 56:3 57:25 58:233 59:265
60:182 61:898 62:904 63:1892 64:3074 65:2223
66:3067 67:655 68:653 69:1618 70:389 71:98
72:920 74:78 75:7 80:824 81:693 82:611
83:391 84:392 85:647 86:406 87:454 88:186
89:455 121:32 122:14 123:1 124:371 125:636
128:154 129:228 130:118 131:301 132:37 133:9
134:167 135:50 136:178 137:97 138:224 139:64
140:523 141:134 142:360 143:192 144:241 145:42
146:324 147:136 148:356 149:177 150:114 151:121
152:76 153:118 154:5 155:229 156:158 157:178
158:154 159:172 160:98 161:85 162:219 163:167
164:441 165:226 166:240 167:248 168:486 169:129
170:364 171:11 190:207 192:5737 193:3470 194:2730
195:2079 196:880 198:3888 199:3322 200:4434 201:920
202:6912 203:7122 204:3918 205:2089 206:2427 207:2931
208:2296 209:3478 210:2177 211:831 212:1313 213:1446
214:357 215:40 216:4031 217:1130 218:345 219:257
220:791 221:385 222:242
End of report
Report Website: http://thyme.apnic.net
