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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 12 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 210492
Prefixes after maximum aggregation: 113396
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102586
Total ASes present in the Internet Routing Table: 24307
Origin-only ASes present in the Internet Routing Table: 21169
Origin ASes announcing only one prefix: 10239
Transit ASes present in the Internet Routing Table: 3138
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 (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1674816940
Equivalent to 99 /8s, 211 /16s and 173 /24s
Percentage of available address space announced: 45.2
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 108049
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47348
Total APNIC prefixes after maximum aggregation: 18861
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 44625
Unique aggregates announced from the APNIC address blocks: 19531
APNIC Region origin ASes present in the Internet Routing Table: 2845
APNIC Region origin ASes announcing only one prefix: 791
APNIC Region transit ASes present in the Internet Routing Table: 422
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 283401472
Equivalent to 16 /8s, 228 /16s and 93 /24s
Percentage of available APNIC address space announced: 70.2
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, 116/6, 120/6, 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: 103066
Total ARIN prefixes after maximum aggregation: 61037
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75937
Unique aggregates announced from the ARIN address blocks: 29393
ARIN Region origin ASes present in the Internet Routing Table: 11319
ARIN Region origin ASes announcing only one prefix: 4333
ARIN Region transit ASes present in the Internet Routing Table: 1051
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 317238400
Equivalent to 18 /8s, 232 /16s and 172 /24s
Percentage of available ARIN address space announced: 70.0
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: 43652
Total RIPE prefixes after maximum aggregation: 28510
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40359
Unique aggregates announced from the RIPE address blocks: 26864
RIPE Region origin ASes present in the Internet Routing Table: 9127
RIPE Region origin ASes announcing only one prefix: 4811
RIPE Region transit ASes present in the Internet Routing Table: 1470
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 289193508
Equivalent to 17 /8s, 60 /16s and 190 /24s
Percentage of available RIPE address space announced: 78.4
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: 13869
Total LACNIC prefixes after maximum aggregation: 4024
LACNIC Deaggregation factor: 3.45
Prefixes being announced from the LACNIC address blocks: 11947
Unique aggregates announced from the LACNIC address blocks: 7146
LACNIC Region origin ASes present in the Internet Routing Table: 759
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37310464
Equivalent to 2 /8s, 57 /16s and 80 /24s
Percentage of available LACNIC address space announced: 55.6
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: 2554
Total AfriNIC prefixes after maximum aggregation: 962
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 1840
Unique aggregates announced from the AfriNIC address blocks: 1168
AfriNIC Region origin ASes present in the Internet Routing Table: 177
AfriNIC Region origin ASes announcing only one prefix: 54
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5393664
Equivalent to 0 /8s, 82 /16s and 77 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1280 8673 274 CHINANET-BACKBONE
4755 1099 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1038 109 16 Sify Limited
9498 952 467 64 BHARTI BT INTERNET LTD.
23577 776 35 703 Korea Telecom (ATM-MPLS)
4766 765 4944 313 Korea Telecom (KIX)
17488 594 39 23 Hathway IP Over Cable Interne
7545 577 126 75 TPG Internet Pty Ltd
1221 572 1682 441 Telstra Pty Ltd
18101 520 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 443 803 73 China Telecom (Shanghai)
9443 441 111 73 Primus Telecommunications
7474 378 215 255 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 359 34 170 Pakistan Telecom
17974 345 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6125 982 AT&T WorldNet Services
4323 1119 827 358 Time Warner Telecom
2386 1106 569 731 AT&T Data Communications Serv
6197 1017 651 499 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
701 940 6696 748 UUNET Technologies, Inc.
11492 940 100 15 Cable One
174 938 6792 866 Cogent Communications
1239 823 2730 575 Sprint
20115 800 700 414 Charter Communications
7011 785 227 474 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 726 1872 41 Cox Communications, Inc.
209 717 3742 564 Qwest
721 678 21835 277 DLA Systems Automation Center
852 605 1090 391 Telus Advanced Communications
5668 576 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 70 Canadian Research Network
6198 554 526 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1897 424 UUNET - Commercial IP service
3301 315 1199 290 TeliaNet Sweden
24863 307 45 25 LINKdotNET AS number
3320 297 4993 248 Deutsche Telekom AG
8220 268 456 260 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 240 284 226 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 222 1100 171 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
3269 212 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
8551 201 194 29 Bezeq International
20858 197 34 3 EgyNet
3352 194 1767 31 Ibernet, Internet Access Netw
30890 187 15 91 SC Kappa Invexim SRL
3300 181 171 90 AUCS Communications Services
12479 178 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1015 2109 202 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 341 107 82 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 253 74 30 ENTEL CHILE S.A.
7303 247 142 29 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 235 116 6 Cable-Wireless Panama
6147 228 182 20 Telefonica Del Peru
6503 212 174 88 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
7910 152 11 32 ANDINET ON LINE
21826 149 26 56 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19169 141 9 24 Telconet
14522 140 22 9 SatNet S.A.
19429 139 84 34 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 238 60 6 TEDATA
15475 155 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 114 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 63 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 52 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1099 1023 Videsh Sanchar Nigam Ltd. Aut
9583 1038 1022 Sify Limited
4134 1280 1006 CHINANET-BACKBONE
18566 988 979 Covad Communications
11492 940 925 Cable One
9498 952 888 BHARTI BT INTERNET LTD.
8151 1015 813 UniNet S.A. de C.V.
4323 1119 761 Time Warner Telecom
22773 726 685 Cox Communications, Inc.
19262 757 579 Verizon Global Networks
17488 594 571 Hathway IP Over Cable Interne
5668 576 560 CenturyTel Internet Holdings,
6197 1017 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 577 502 TPG Internet Pty Ltd
18101 520 497 Reliance Infocom Ltd Internet
855 565 495 Canadian Research Network
15270 505 471 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 765 452 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
42.205.192.0/20 36925 Meditelecom
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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /9:9 /10:13 /11:33 /12:116
/13:226 /14:422 /15:819 /16:9210 /17:3721 /18:6047
/19:13057 /20:14670 /21:13151 /22:16982 /23:17965 /24:112213
/25:689 /26:484 /27:411 /28:69 /29:43 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 926 940 Cable One
9583 866 1038 Sify Limited
2386 830 1106 AT&T Data Communications Serv
7018 809 1500 AT&T WorldNet Services
6197 795 1017 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 684 785 Citizens Utilities
9498 606 952 BHARTI BT INTERNET LTD.
4766 573 765 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 508 1099 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 451 520 Reliance Infocom Ltd Internet
5668 446 576 CenturyTel Internet Holdings,
17488 416 594 Hathway IP Over Cable Interne
33588 410 432 Bresnan Communications, LLC.
4323 403 1119 Time Warner Telecom
1239 402 823 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 6:1 7:1 8:64 9:1 12:1654
13:1 15:16 16:3 17:3 18:5 20:36
24:885 25:1 32:53 38:279 40:57 41:68
44:2 47:7 52:4 55:1 56:3 57:25
58:301 59:376 60:203 61:918 62:1024 63:1905
64:3238 65:2312 66:3106 67:719 68:654 69:1715
70:446 71:97 72:1185 73:2 74:162 75:77
77:17 80:838 81:780 82:659 83:359 84:508
85:730 86:460 87:482 88:226 89:785 90:1
91:196 97:1 116:1 117:1 118:1 119:1
120:1 121:132 122:81 123:37 124:576 125:783
128:309 129:219 130:136 131:342 132:49 133:9
134:186 135:45 136:181 137:113 138:196 139:54
140:515 141:141 142:373 143:215 144:270 145:43
146:315 147:143 148:370 149:191 150:114 151:116
152:92 153:119 154:5 155:250 156:129 157:174
158:151 159:149 160:98 161:88 162:229 163:162
164:447 165:324 166:247 167:281 168:496 169:120
170:385 171:15 172:1 189:162 190:388 192:5743
193:3701 194:2955 195:2193 196:941 198:3749 199:3281
200:4597 201:969 202:7151 203:7362 204:3956 205:2098
206:2405 207:2867 208:2459 209:3595 210:2368 211:921
212:1293 213:1410 214:405 215:39 216:4059 217:1154
218:353 219:266 220:856 221:371 222:264
End of report
Report Website: http://thyme.apnic.net
