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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 15 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 200473
Prefixes after maximum aggregation: 108826
Unique aggregates announced to Internet: 97045
Total ASes present in the Internet Routing Table: 23362
Origin-only ASes present in the Internet Routing Table: 20349
Origin ASes announcing only one prefix: 9790
Transit ASes present in the Internet Routing Table: 3013
Transit-only ASes present in the Internet Routing Table: 72
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: 2
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: 1615540236
Equivalent to 96 /8s, 75 /16s and 48 /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: 100581
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43874
Total APNIC prefixes after maximum aggregation: 17546
Prefixes being announced from the APNIC address blocks: 41520
Unique aggregates announced from the APNIC address blocks: 18471
APNIC Region origin ASes present in the Internet Routing Table: 2713
APNIC Region origin ASes announcing only one prefix: 759
APNIC Region transit ASes present in the Internet Routing Table: 408
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 263763808
Equivalent to 15 /8s, 184 /16s and 183 /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: 100837
Total ARIN prefixes after maximum aggregation: 59560
Prefixes being announced from the ARIN address blocks: 74005
Unique aggregates announced from the ARIN address blocks: 27961
ARIN Region origin ASes present in the Internet Routing Table: 11053
ARIN Region origin ASes announcing only one prefix: 4204
ARIN Region transit ASes present in the Internet Routing Table: 1030
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 304803456
Equivalent to 18 /8s, 42 /16s and 238 /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: 40819
Total RIPE prefixes after maximum aggregation: 26937
Prefixes being announced from the RIPE address blocks: 37745
Unique aggregates announced from the RIPE address blocks: 25170
RIPE Region origin ASes present in the Internet Routing Table: 8627
RIPE Region origin ASes announcing only one prefix: 4535
RIPE Region transit ASes present in the Internet Routing Table: 1393
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 267512868
Equivalent to 15 /8s, 241 /16s and 236 /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: 12594
Total LACNIC prefixes after maximum aggregation: 3855
Prefixes being announced from the LACNIC address blocks: 10613
Unique aggregates announced from the LACNIC address blocks: 6258
LACNIC Region origin ASes present in the Internet Routing Table: 734
LACNIC Region origin ASes announcing only one prefix: 245
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: 33029120
Equivalent to 1 /8s, 247 /16s and 252 /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: 2347
Total AfriNIC prefixes after maximum aggregation: 928
Prefixes being announced from the AfriNIC address blocks: 1661
Unique aggregates announced from the AfriNIC address blocks: 1014
AfriNIC Region origin ASes present in the Internet Routing Table: 163
AfriNIC Region origin ASes announcing only one prefix: 47
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: 4302336
Equivalent to 0 /8s, 65 /16s and 166 /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 1008 255 66 Videsh Sanchar Nigam Ltd. Aut
9583 956 109 15 Sify Limited
9498 866 212 70 BHARTI BT INTERNET LTD.
4766 741 4436 307 Korea Telecom (KIX)
1221 609 1780 468 Telstra Pty Ltd
7545 541 124 73 TPG Internet Pty Ltd
17488 534 33 12 Hathway IP Over Cable Interne
17676 499 10933 63 Softbank BB Corp.
18101 462 85 20 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
17849 430 36 126 Telecommunications Technology
9942 428 77 127 COMindico Australia
4812 411 741 63 China Telecom (Shanghai)
4802 410 86 147 Wantree Development
17974 366 129 12 PT TELEKOMUNIKASI INDONESIA
17557 365 31 176 Pakistan Telecom
2907 335 1734 312 SINET Japan
4837 324 3556 140 chinanet IDC center beijing n
10139 306 23 6 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1526 6209 984 AT&T WorldNet Services
2386 1168 616 741 AT&T Data Communications Serv
4323 1031 784 294 Time Warner Telecom
6197 1017 608 498 BellSouth Network Solutions,
18566 967 272 8 Covad Communications
701 963 6758 782 UUNET Technologies, Inc.
721 961 21925 306 DLA Systems Automation Center
174 958 6823 884 Cogent Communications
1239 833 2763 587 Sprint
11492 754 90 13 Cable One
20115 749 673 392 Charter Communications
19262 739 2391 179 Verizon Global Networks
22773 718 1744 46 Cox Communications, Inc.
209 709 3633 557 Qwest
7011 684 210 429 Citizens Utilities
852 590 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 546 250 74 Canadian Research Network
5668 538 145 18 CenturyTel Internet Holdings,
6478 530 1280 335 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 544 1928 423 UUNET - Commercial IP service
24863 367 42 14 LINKdotNET AS number
3301 313 1200 297 TeliaNet Sweden
3320 300 5013 245 Deutsche Telekom AG
8220 278 455 264 COLT Telecommunications
680 251 2041 247 DFN-IP service G-WiN
6746 246 91 224 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 212 740 168 SWIPnet Swedish IP Network
3269 204 2277 74 TELECOM ITALIA
30890 202 18 77 SC Kappa Invexim SRL
8551 200 182 27 Bezeq International
6830 198 879 43 UPC Distribution Services
5416 186 12 11 BATELCO-BH
8866 185 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 633 1810 223 UniNet S.A. de C.V.
11172 426 100 91 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 263 140 23 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 179 168 85 AVANTEL, S.A.
21826 144 19 31 INTERCABLE
23216 144 19 46 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 294 804 234 The Internet Solution
8452 173 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
2018 132 297 111 Tertiary Education Network
15475 132 84 4 Nile Online
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 34 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 1008 942 Videsh Sanchar Nigam Ltd. Aut
9583 956 941 Sify Limited
9498 866 796 BHARTI BT INTERNET LTD.
11492 754 741 Cable One
4323 1031 737 Time Warner Telecom
22773 718 672 Cox Communications, Inc.
721 961 655 DLA Systems Automation Center
19262 739 560 Verizon Global Networks
17488 534 522 Hathway IP Over Cable Interne
5668 538 520 CenturyTel Internet Holdings,
6197 1017 519 BellSouth Network Solutions,
19916 565 511 OLM LLC
855 546 472 Canadian Research Network
7545 541 468 TPG Internet Pty Ltd
18101 462 442 Reliance Infocom Ltd Internet
17676 499 436 Softbank BB Corp.
15270 470 435 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
65534 PRIVATE 193.138.171.0/24 34238 SC OMNITECH NET SRL
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 /9:9 /10:13 /11:29 /12:106
/13:214 /14:386 /15:774 /16:9045 /17:3512 /18:5722
/19:12386 /20:14017 /21:12367 /22:15675 /23:17071 /24:107823
/25:465 /26:401 /27:194 /28:70 /29:43 /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 885 1168 AT&T Data Communications Serv
7018 807 1526 AT&T WorldNet Services
6197 800 1017 BellSouth Network Solutions,
9583 787 956 Sify Limited
11492 742 754 Cable One
7011 591 684 Citizens Utilities
19916 559 565 OLM LLC
4766 550 741 Korea Telecom (KIX)
9498 517 866 BHARTI BT INTERNET LTD.
4755 439 1008 Videsh Sanchar Nigam Ltd. Aut
15270 439 470 PaeTec.net -a division of Pae
855 427 546 Canadian Research Network
5668 420 538 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
1239 408 833 Sprint
18101 396 462 Reliance Infocom Ltd Internet
22773 377 718 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 6:1 8:54 12:1642 13:1 15:16
16:3 17:3 18:4 20:41 24:818 25:1
32:57 38:259 40:57 41:22 44:3 47:7
52:4 53:1 55:1 56:3 57:25 58:224
59:289 60:221 61:901 62:1044 63:1905 64:3138
65:2235 66:3037 67:651 68:648 69:1660 70:403
71:92 72:960 74:88 75:9 80:832 81:701
82:630 83:393 84:401 85:688 86:412 87:459
88:235 89:513 91:27 121:56 122:18 124:418
125:651 128:281 129:227 130:123 131:313 132:35
133:9 134:167 135:50 136:177 137:107 138:184
139:47 140:526 141:130 142:344 143:193 144:238
145:43 146:320 147:138 148:367 149:177 150:115
151:121 152:76 153:121 154:5 155:255 156:160
157:167 158:155 159:170 160:98 161:84 162:216
163:161 164:227 165:218 166:239 167:253 168:487
169:129 170:382 171:11 172:1 189:2 190:244
192:5752 193:3519 194:2740 195:2102 196:912 198:3899
199:3311 200:4497 201:978 202:6936 203:7138 204:3924
205:2128 206:2430 207:2981 208:2294 209:3503 210:2189
211:845 212:1340 213:1507 214:380 215:39 216:4058
217:1145 218:344 219:258 220:796 221:382 222:233
End of report
Report Website: http://thyme.apnic.net
