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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 29 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 202119
Prefixes after maximum aggregation: 109764
Unique aggregates announced to Internet: 97908
Total ASes present in the Internet Routing Table: 23487
Origin-only ASes present in the Internet Routing Table: 20451
Origin ASes announcing only one prefix: 9831
Transit ASes present in the Internet Routing Table: 3036
Transit-only ASes present in the Internet Routing Table: 79
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: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1622323984
Equivalent to 96 /8s, 178 /16s and 179 /24s
Percentage of available address space announced: 43.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 101865
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44710
Total APNIC prefixes after maximum aggregation: 18209
Prefixes being announced from the APNIC address blocks: 42306
Unique aggregates announced from the APNIC address blocks: 18524
APNIC Region origin ASes present in the Internet Routing Table: 2735
APNIC Region origin ASes announcing only one prefix: 762
APNIC Region transit ASes present in the Internet Routing Table: 414
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 265043552
Equivalent to 15 /8s, 204 /16s and 62 /24s
Percentage of available APNIC address space announced: 82.9
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: 101133
Total ARIN prefixes after maximum aggregation: 59687
Prefixes being announced from the ARIN address blocks: 74356
Unique aggregates announced from the ARIN address blocks: 28107
ARIN Region origin ASes present in the Internet Routing Table: 11095
ARIN Region origin ASes announcing only one prefix: 4222
ARIN Region transit ASes present in the Internet Routing Table: 1038
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 307322272
Equivalent to 18 /8s, 81 /16s and 93 /24s
Percentage of available ARIN address space announced: 67.8
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: 40858
Total RIPE prefixes after maximum aggregation: 27054
Prefixes being announced from the RIPE address blocks: 37810
Unique aggregates announced from the RIPE address blocks: 25310
RIPE Region origin ASes present in the Internet Routing Table: 8669
RIPE Region origin ASes announcing only one prefix: 4558
RIPE Region transit ASes present in the Internet Routing Table: 1392
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 269891588
Equivalent to 16 /8s, 22 /16s and 56 /24s
Percentage of available RIPE address space announced: 73.1
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: 13077
Total LACNIC prefixes after maximum aggregation: 3887
Prefixes being announced from the LACNIC address blocks: 11049
Unique aggregates announced from the LACNIC address blocks: 6730
LACNIC Region origin ASes present in the Internet Routing Table: 745
LACNIC Region origin ASes announcing only one prefix: 242
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 33808384
Equivalent to 2 /8s, 3 /16s and 224 /24s
Percentage of available LACNIC address space announced: 50.4
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: 2340
Total AfriNIC prefixes after maximum aggregation: 927
Prefixes being announced from the AfriNIC address blocks: 1610
Unique aggregates announced from the AfriNIC address blocks: 1038
AfriNIC Region origin ASes present in the Internet Routing Table: 164
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4322304
Equivalent to 0 /8s, 65 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 12.9
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 1250 8392 243 CHINANET-BACKBONE
4755 1014 383 66 Videsh Sanchar Nigam Ltd. Aut
9583 946 109 15 Sify Limited
9498 862 212 64 BHARTI BT INTERNET LTD.
23577 777 35 705 KRNIC
4766 739 4436 306 Korea Telecom (KIX)
1221 611 1780 469 Telstra Pty Ltd
7545 543 124 74 TPG Internet Pty Ltd
17488 542 34 14 Hathway IP Over Cable Interne
17676 500 10934 64 Softbank BB Corp.
18101 464 86 21 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
4812 437 745 61 China Telecom (Shanghai)
9942 431 77 125 COMindico Australia
17849 430 36 126 Telecommunications Technology
4802 412 86 150 Wantree Development
17557 365 31 176 Pakistan Telecom
17974 364 129 12 PT TELEKOMUNIKASI INDONESIA
10139 362 23 6 Meridian Telekoms
2907 333 1733 310 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1536 6209 992 AT&T WorldNet Services
2386 1184 620 755 AT&T Data Communications Serv
4323 1030 786 291 Time Warner Telecom
6197 1020 638 484 BellSouth Network Solutions,
18566 969 272 8 Covad Communications
721 964 21925 306 DLA Systems Automation Center
174 953 6822 878 Cogent Communications
701 953 6721 774 UUNET Technologies, Inc.
1239 845 2764 595 Sprint
11492 781 96 16 Cable One
19262 778 2430 179 Verizon Global Networks
20115 754 679 397 Charter Communications
22773 715 1744 46 Cox Communications, Inc.
209 705 3761 555 Qwest
7011 684 208 425 Citizens Utilities
852 591 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
5668 540 145 18 CenturyTel Internet Holdings,
855 539 250 74 Canadian Research Network
6478 533 1289 335 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1928 425 UUNET - Commercial IP service
3301 314 1200 298 TeliaNet Sweden
3320 307 5016 248 Deutsche Telekom AG
24863 274 41 30 LINKdotNET AS number
8220 273 470 263 COLT Telecommunications
680 251 2041 247 DFN-IP service G-WiN
6746 248 91 225 Dynamic Network Technologies,
3246 227 469 217 Song Networks
9116 225 134 23 Goldenlines main autonomous s
8708 223 279 210 Romania Data Systems S.A.
3215 219 1952 92 France Telecom Transpac
8551 216 198 28 Bezeq International
1257 213 740 169 SWIPnet Swedish IP Network
3269 206 2341 74 TELECOM ITALIA
30890 206 18 79 SC Kappa Invexim SRL
6830 200 879 43 UPC Distribution Services
5416 187 12 12 BATELCO-BH
3300 173 171 94 AUCS Communications Services
786 171 1779 171 The JANET IP Service
3352 168 1703 31 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 749 1906 217 UniNet S.A. de C.V.
11830 459 299 19 Instituto Costarricense de El
11172 433 101 88 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6147 269 150 22 Telefonica Del Peru
6471 267 74 30 ENTEL CHILE S.A.
14117 240 15 10 Telefonica del Sur S.A.
7303 208 93 35 Telecom Argentina Stet-France
6503 194 169 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 145 19 30 INTERCABLE
19169 136 9 21 Telconet
19429 136 84 40 E.T.B.
7910 135 10 22 ANDINET ON LINE
23216 135 19 43 RAMtelecom Telecomunicaciones
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
7738 121 442 21 Telecomunicacoes da Bahia S.A
14522 117 18 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 293 804 234 The Internet Solution
8452 166 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
2018 133 297 111 Tertiary Education Network
15475 133 84 4 Nile Online
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 109 6 3 EEPAD TISP TELECOM & INTERNET
2905 75 157 68 The Internetworking Company o
2561 56 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
12455 39 6 3 Jambonet Autonomous system
5713 36 293 32 Telkom SA Ltd
33774 33 7 20 AS Number for Telecom Algeria
8524 30 2 6 AUCEGYPT Autonomous System
23889 29 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 21 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1250 1007 CHINANET-BACKBONE
18566 969 961 Covad Communications
4755 1014 948 Videsh Sanchar Nigam Ltd. Aut
9583 946 931 Sify Limited
9498 862 798 BHARTI BT INTERNET LTD.
11492 781 765 Cable One
4323 1030 739 Time Warner Telecom
22773 715 669 Cox Communications, Inc.
721 964 658 DLA Systems Automation Center
19262 778 599 Verizon Global Networks
6197 1020 536 BellSouth Network Solutions,
8151 749 532 UniNet S.A. de C.V.
17488 542 528 Hathway IP Over Cable Interne
5668 540 522 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
7545 543 469 TPG Internet Pty Ltd
855 539 465 Canadian Research Network
15270 481 446 PaeTec.net -a division of Pae
18101 464 443 Reliance Infocom Ltd Internet
11830 459 440 Instituto Costarricense de El
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 /9:10 /10:13 /11:29 /12:107
/13:216 /14:389 /15:779 /16:9048 /17:3511 /18:5758
/19:12622 /20:14135 /21:12491 /22:15858 /23:17273 /24:107989
/25:646 /26:548 /27:371 /28:71 /29:41 /30:153
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 952 969 Covad Communications
2386 895 1184 AT&T Data Communications Serv
7018 814 1536 AT&T WorldNet Services
6197 799 1020 BellSouth Network Solutions,
9583 774 946 Sify Limited
11492 767 781 Cable One
23577 763 777 KRNIC
7011 592 684 Citizens Utilities
19916 559 565 OLM LLC
4766 549 739 Korea Telecom (KIX)
9498 522 862 BHARTI BT INTERNET LTD.
15270 450 481 PaeTec.net -a division of Pae
4755 445 1014 Videsh Sanchar Nigam Ltd. Aut
855 434 539 Canadian Research Network
5668 421 540 CenturyTel Internet Holdings,
1239 420 845 Sprint
17849 416 430 Telecommunications Technology
18101 397 464 Reliance Infocom Ltd Internet
22773 378 715 Cox Communications, Inc.
33588 370 391 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 6:1 8:55 12:1640 13:1 15:16
16:3 17:3 18:4 20:38 24:829 25:1
32:58 38:260 40:57 41:18 44:1 47:7
52:4 53:1 55:1 56:3 57:25 58:235
59:304 60:219 61:945 62:1017 63:1883 64:3112
65:2245 66:3056 67:653 68:652 69:1678 70:405
71:109 72:993 74:92 75:9 80:842 81:708
82:628 83:373 84:439 85:668 86:415 87:415
88:240 89:536 91:28 121:57 122:18 124:437
125:673 128:283 129:202 130:123 131:314 132:35
133:9 134:167 135:50 136:173 137:113 138:207
139:47 140:518 141:132 142:345 143:193 144:243
145:43 146:320 147:138 148:369 149:176 150:115
151:121 152:80 153:122 154:5 155:254 156:155
157:162 158:151 159:172 160:100 161:86 162:214
163:178 164:238 165:235 166:239 167:283 168:484
169:128 170:385 171:11 172:1 189:4 190:257
192:5747 193:3537 194:2743 195:2104 196:858 198:3866
199:3312 200:4560 201:939 202:6947 203:7122 204:3926
205:2109 206:2433 207:2958 208:2319 209:3533 210:2173
211:876 212:1339 213:1470 214:376 215:39 216:4071
217:1137 218:340 219:263 220:791 221:373 222:231
End of report
Report Website: http://thyme.apnic.net
