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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 28 Dec, 2006
Analysis Summary
----------------
BGP routing table entries examined: 206218
Prefixes after maximum aggregation: 112030
Unique aggregates announced to Internet: 100672
Total ASes present in the Internet Routing Table: 24006
Origin-only ASes present in the Internet Routing Table: 20930
Origin ASes announcing only one prefix: 10094
Transit ASes present in the Internet Routing Table: 3076
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: 32
Max AS path prepend of ASN (16327) 25
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1649773356
Equivalent to 98 /8s, 85 /16s and 139 /24s
Percentage of available address space announced: 44.5
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 105012
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45594
Total APNIC prefixes after maximum aggregation: 18568
Prefixes being announced from the APNIC address blocks: 43166
Unique aggregates announced from the APNIC address blocks: 19005
APNIC Region origin ASes present in the Internet Routing Table: 2800
APNIC Region origin ASes announcing only one prefix: 794
APNIC Region transit ASes present in the Internet Routing Table: 419
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 273138656
Equivalent to 16 /8s, 71 /16s and 195 /24s
Percentage of available APNIC address space announced: 85.4
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: 102012
Total ARIN prefixes after maximum aggregation: 60498
Prefixes being announced from the ARIN address blocks: 75244
Unique aggregates announced from the ARIN address blocks: 28679
ARIN Region origin ASes present in the Internet Routing Table: 11242
ARIN Region origin ASes announcing only one prefix: 4286
ARIN Region transit ASes present in the Internet Routing Table: 1023
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 311228288
Equivalent to 18 /8s, 140 /16s and 247 /24s
Percentage of available ARIN address space announced: 68.7
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: 42747
Total RIPE prefixes after maximum aggregation: 28029
Prefixes being announced from the RIPE address blocks: 39564
Unique aggregates announced from the RIPE address blocks: 26471
RIPE Region origin ASes present in the Internet Routing Table: 8964
RIPE Region origin ASes announcing only one prefix: 4715
RIPE Region transit ASes present in the Internet Routing Table: 1439
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 282978180
Equivalent to 16 /8s, 221 /16s and 231 /24s
Percentage of available RIPE address space announced: 76.7
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
40960-43007
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: 13343
Total LACNIC prefixes after maximum aggregation: 3991
Prefixes being announced from the LACNIC address blocks: 11407
Unique aggregates announced from the LACNIC address blocks: 7021
LACNIC Region origin ASes present in the Internet Routing Table: 751
LACNIC Region origin ASes announcing only one prefix: 248
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 35623424
Equivalent to 2 /8s, 31 /16s and 146 /24s
Percentage of available LACNIC address space announced: 53.1
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: 2520
Total AfriNIC prefixes after maximum aggregation: 944
Prefixes being announced from the AfriNIC address blocks: 1769
Unique aggregates announced from the AfriNIC address blocks: 1121
AfriNIC Region origin ASes present in the Internet Routing Table: 170
AfriNIC Region origin ASes announcing only one prefix: 51
AfriNIC Region transit ASes present in the Internet Routing Table: 29
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5323008
Equivalent to 0 /8s, 81 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 15.9
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 1256 8637 264 CHINANET-BACKBONE
4755 1039 384 67 Videsh Sanchar Nigam Ltd. Aut
9583 1025 109 16 Sify Limited
9498 894 211 63 BHARTI BT INTERNET LTD.
23577 769 34 699 KRNIC
4766 751 4945 306 Korea Telecom (KIX)
1221 575 1714 445 Telstra Pty Ltd
17488 565 35 21 Hathway IP Over Cable Interne
7545 553 126 73 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 492 87 26 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
9942 439 81 132 COMindico Australia
4812 437 758 69 China Telecom (Shanghai)
17849 411 36 126 Telecommunications Technology
4802 405 86 146 Wantree Development
17557 367 35 171 Pakistan Telecom
17974 348 128 13 PT TELEKOMUNIKASI INDONESIA
2907 332 1749 309 SINET Japan
4837 331 3911 147 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1539 6157 1000 AT&T WorldNet Services
2386 1109 586 734 AT&T Data Communications Serv
4323 1058 820 299 Time Warner Telecom
6197 1018 636 501 BellSouth Network Solutions,
18566 983 272 8 Covad Communications
174 964 6809 876 Cogent Communications
701 937 6691 761 UUNET Technologies, Inc.
11492 863 98 13 Cable One
1239 813 2729 574 Sprint
19262 788 2496 181 Verizon Global Networks
721 779 21885 292 DLA Systems Automation Center
20115 767 667 406 Charter Communications
209 713 3763 563 Qwest
22773 710 1744 40 Cox Communications, Inc.
7011 686 211 431 Citizens Utilities
852 603 1092 391 Telus Advanced Communications
19916 567 48 57 OLM LLC
6198 549 535 257 BellSouth Network Solutions,
5668 546 161 19 CenturyTel Internet Holdings,
855 538 250 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1912 425 UUNET - Commercial IP service
3301 310 1199 292 TeliaNet Sweden
3320 300 4994 248 Deutsche Telekom AG
24863 294 44 26 LINKdotNET AS number
8220 272 474 263 COLT Telecommunications
6746 264 93 242 Dynamic Network Technologies,
680 253 2041 248 DFN-IP service G-WiN
9116 233 134 23 Goldenlines main autonomous s
8708 231 282 218 Romania Data Systems S.A.
3215 230 2104 96 France Telecom Transpac
1257 214 1069 171 SWIPnet Swedish IP Network
3269 210 2373 73 TELECOM ITALIA
30890 208 19 90 SC Kappa Invexim SRL
5416 206 13 9 BATELCO-BH
3246 202 353 192 Song Networks
8551 198 197 24 Bezeq International
3300 179 171 96 AUCS Communications Services
3352 175 1767 31 Ibernet, Internet Access Netw
12479 175 578 6 Uni2 Autonomous System
786 171 1795 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 779 1921 202 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 385 104 74 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
14117 258 16 13 Telefonica del Sur S.A.
6471 257 74 31 ENTEL CHILE S.A.
7303 226 101 38 Telecom Argentina Stet-France
6147 225 182 20 Telefonica Del Peru
6503 217 170 94 AVANTEL, S.A.
11556 204 101 6 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 156 20 35 INTERCABLE
23216 146 19 43 RAMtelecom Telecomunicaciones
7910 144 10 31 ANDINET ON LINE
19169 139 9 22 Telconet
19429 138 84 34 E.T.B.
18822 129 8 10 TELEFONICA MANQUEHUE
14522 128 20 9 SatNet S.A.
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 289 868 231 The Internet Solution
8452 230 60 7 TEDATA
15475 147 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 136 297 111 Tertiary Education Network
5536 124 8 11 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 109 6 4 EEPAD TISP TELECOM & INTERNET
2905 84 175 73 The Internetworking Company o
2561 60 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 54 13 15 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
15804 27 2 1 AS of The Way Out Internet So
10798 23 1 14 Standard Bank of South Africa
33766 20 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
9583 1025 1009 Sify Limited
4134 1256 992 CHINANET-BACKBONE
18566 983 975 Covad Communications
4755 1039 972 Videsh Sanchar Nigam Ltd. Aut
11492 863 850 Cable One
9498 894 831 BHARTI BT INTERNET LTD.
4323 1058 759 Time Warner Telecom
22773 710 670 Cox Communications, Inc.
19262 788 607 Verizon Global Networks
8151 779 577 UniNet S.A. de C.V.
17488 565 544 Hathway IP Over Cable Interne
5668 546 527 CenturyTel Internet Holdings,
6197 1018 517 BellSouth Network Solutions,
19916 567 510 OLM LLC
721 779 487 DLA Systems Automation Center
7545 553 480 TPG Internet Pty Ltd
18101 492 466 Reliance Infocom Ltd Internet
855 538 465 Canadian Research Network
11830 482 463 Instituto Costarricense de El
15270 494 460 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65124 PRIVATE 193.110.52.0/24 24652 Juniper Networks, Eu
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
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.172.0.0/19 721 DLA Systems Automation Center
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 /11:30 /12:114
/13:228 /14:407 /15:797 /16:9092 /17:3604 /18:5867
/19:12795 /20:14453 /21:12858 /22:16416 /23:17843 /24:110013
/25:630 /26:453 /27:354 /28:70 /29:42 /30:87
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 966 983 Covad Communications
9583 854 1025 Sify Limited
11492 849 863 Cable One
7018 831 1539 AT&T WorldNet Services
2386 827 1109 AT&T Data Communications Serv
6197 794 1018 BellSouth Network Solutions,
23577 755 769 KRNIC
7011 591 686 Citizens Utilities
19916 562 567 OLM LLC
4766 560 751 Korea Telecom (KIX)
9498 559 894 BHARTI BT INTERNET LTD.
4755 481 1039 Videsh Sanchar Nigam Ltd. Aut
15270 464 494 PaeTec.net -a division of Pae
855 435 538 Canadian Research Network
18101 427 492 Reliance Infocom Ltd Internet
5668 419 546 CenturyTel Internet Holdings,
17849 397 411 Telecommunications Technology
33588 396 418 Bresnan Communications, LLC.
1239 395 813 Sprint
17488 388 565 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:61 9:1 12:1653 13:1 15:15
16:3 17:3 18:5 20:34 24:854 25:1
32:53 38:274 40:57 41:51 44:2 47:10
52:4 53:1 55:1 56:3 57:25 58:272
59:352 60:224 61:973 62:1059 63:1898 64:3185
65:2295 66:3101 67:693 68:656 69:1689 70:403
71:114 72:1104 74:120 75:49 76:16 80:818
81:759 82:673 83:399 84:452 85:771 86:404
87:456 88:261 89:711 90:1 91:109 97:1
121:111 122:47 123:7 124:502 125:726 128:303
129:219 130:132 131:315 132:49 133:9 134:177
135:43 136:164 137:114 138:188 139:49 140:527
141:134 142:347 143:213 144:262 145:67 146:311
147:139 148:366 149:171 150:111 151:118 152:89
153:118 154:5 155:247 156:148 157:150 158:166
159:139 160:99 161:81 162:224 163:160 164:239
165:236 166:243 167:281 168:481 169:123 170:375
171:12 172:1 189:29 190:309 192:5728 193:3624
194:2878 195:2174 196:930 198:3773 199:3274 200:4557
201:930 202:6974 203:7200 204:3962 205:2090 206:2429
207:2909 208:2370 209:3579 210:2234 211:882 212:1316
213:1444 214:385 215:39 216:4100 217:1157 218:336
219:258 220:831 221:369 222:266
End of report
Report Website: http://thyme.apnic.net
