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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 20 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 212551
Prefixes after maximum aggregation: 114229
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 103540
Total ASes present in the Internet Routing Table: 24378
Origin-only ASes present in the Internet Routing Table: 21237
Origin ASes announcing only one prefix: 10244
Transit ASes present in the Internet Routing Table: 3141
Transit-only ASes present in the Internet Routing Table: 76
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: 12
Number of addresses announced to Internet: 1685532140
Equivalent to 100 /8s, 119 /16s and 45 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 109674
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 48027
Total APNIC prefixes after maximum aggregation: 19288
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 45123
Unique aggregates announced from the APNIC address blocks: 20374
APNIC Region origin ASes present in the Internet Routing Table: 2858
APNIC Region origin ASes announcing only one prefix: 785
APNIC Region transit ASes present in the Internet Routing Table: 419
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 290801760
Equivalent to 17 /8s, 85 /16s and 72 /24s
Percentage of available APNIC address space announced: 72.0
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, 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: 104024
Total ARIN prefixes after maximum aggregation: 61267
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 76082
Unique aggregates announced from the ARIN address blocks: 29469
ARIN Region origin ASes present in the Internet Routing Table: 11340
ARIN Region origin ASes announcing only one prefix: 4338
ARIN Region transit ASes present in the Internet Routing Table: 1050
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 318760576
Equivalent to 18 /8s, 255 /16s and 230 /24s
Percentage of available ARIN address space announced: 70.4
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: 43890
Total RIPE prefixes after maximum aggregation: 28634
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40571
Unique aggregates announced from the RIPE address blocks: 27023
RIPE Region origin ASes present in the Internet Routing Table: 9163
RIPE Region origin ASes announcing only one prefix: 4816
RIPE Region transit ASes present in the Internet Routing Table: 1475
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 291006980
Equivalent to 17 /8s, 88 /16s and 106 /24s
Percentage of available RIPE address space announced: 78.8
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: 14040
Total LACNIC prefixes after maximum aggregation: 4060
LACNIC Deaggregation factor: 3.46
Prefixes being announced from the LACNIC address blocks: 12105
Unique aggregates announced from the LACNIC address blocks: 7006
LACNIC Region origin ASes present in the Internet Routing Table: 761
LACNIC Region origin ASes announcing only one prefix: 246
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37472000
Equivalent to 2 /8s, 59 /16s and 199 /24s
Percentage of available LACNIC address space announced: 55.8
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: 2567
Total AfriNIC prefixes after maximum aggregation: 978
AfriNIC Deaggregation factor: 2.62
Prefixes being announced from the AfriNIC address blocks: 1886
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 179
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5413120
Equivalent to 0 /8s, 82 /16s and 153 /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 1275 8718 277 CHINANET-BACKBONE
4755 1115 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1072 77 376 Sify Limited
9498 945 466 60 BHARTI BT INTERNET LTD.
23577 779 35 707 Korea Telecom (ATM-MPLS)
4766 766 4944 310 Korea Telecom (KIX)
17488 598 39 24 Hathway IP Over Cable Interne
7545 586 142 76 TPG Internet Pty Ltd
1221 580 1686 442 Telstra Pty Ltd
18101 522 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 498 763 72 China Telecom (Shanghai)
4668 462 67 13 LG-EDS Systems Inc.
9443 443 111 75 Primus Telecommunications
7474 380 216 259 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 353 34 169 Pakistan Telecom
17974 346 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6109 984 AT&T WorldNet Services
4323 1299 885 508 Time Warner Telecom
6478 1134 455 195 AT&T Worldnet Services
2386 1108 570 733 AT&T Data Communications Serv
6197 1015 651 497 BellSouth Network Solutions,
18566 991 288 9 Covad Communications
11492 960 100 18 Cable One
701 945 6696 751 UUNET Technologies, Inc.
174 937 6792 864 Cogent Communications
1239 818 2729 574 Sprint
20115 806 707 416 Charter Communications
7011 786 227 475 Citizens Utilities
19262 755 2591 178 Verizon Global Networks
22773 728 1872 41 Cox Communications, Inc.
209 712 3742 568 Qwest
721 634 21771 272 DLA Systems Automation Center
852 605 1090 391 Telus Advanced Communications
5668 575 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 566 250 70 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 547 1896 425 UUNET - Commercial IP service
24863 325 45 25 LINKdotNET AS number
3301 311 1199 289 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
8220 270 469 261 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 241 284 227 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 223 1116 172 SWIPnet Swedish IP Network
5416 219 14 15 BATELCO-BH
3269 213 2423 71 TELECOM ITALIA
3246 208 355 197 Song Networks
30890 205 17 97 SC Kappa Invexim SRL
8551 203 196 28 Bezeq International
3352 200 1783 33 Ibernet, Internet Access Netw
20858 197 34 3 EgyNet
3300 181 171 89 AUCS Communications Services
12479 177 578 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 1023 2047 213 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 346 108 83 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 251 142 30 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 229 182 20 Telefonica Del Peru
6503 204 173 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 156 27 56 INTERCABLE
7910 152 11 32 ANDINET ON LINE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 143 9 25 Telconet
19429 143 88 35 E.T.B.
20299 141 18 21 NEWCOM AMERICAS
14522 140 22 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 246 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
2905 121 178 94 The Internetworking Company o
33783 97 6 20 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2561 64 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 53 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 29 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 26 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1115 1038 Videsh Sanchar Nigam Ltd. Aut
4134 1275 998 CHINANET-BACKBONE
18566 991 982 Covad Communications
11492 960 942 Cable One
6478 1134 939 AT&T Worldnet Services
9498 945 885 BHARTI BT INTERNET LTD.
8151 1023 810 UniNet S.A. de C.V.
4323 1299 791 Time Warner Telecom
9583 1072 696 Sify Limited
22773 728 687 Cox Communications, Inc.
19262 755 577 Verizon Global Networks
17488 598 574 Hathway IP Over Cable Interne
5668 575 559 CenturyTel Internet Holdings,
6197 1015 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 586 510 TPG Internet Pty Ltd
18101 522 499 Reliance Infocom Ltd Internet
855 566 496 Canadian Research Network
15270 507 473 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
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
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 /8:20 /9:9 /10:12 /11:33 /12:117
/13:226 /14:426 /15:823 /16:9241 /17:3727 /18:6154
/19:13155 /20:14866 /21:13407 /22:17236 /23:18372 /24:112821
/25:713 /26:510 /27:434 /28:68 /29:44 /30:104
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1079 1134 AT&T Worldnet Services
18566 973 991 Covad Communications
11492 946 960 Cable One
9583 908 1072 Sify Limited
2386 832 1108 AT&T Data Communications Serv
7018 810 1497 AT&T WorldNet Services
6197 794 1015 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 685 786 Citizens Utilities
9498 608 945 BHARTI BT INTERNET LTD.
4766 573 766 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 538 1299 Time Warner Telecom
4755 523 1115 Videsh Sanchar Nigam Ltd. Aut
15270 475 507 PaeTec.net -a division of Pae
855 465 566 Canadian Research Network
4668 454 462 LG-EDS Systems Inc.
18101 453 522 Reliance Infocom Ltd Internet
5668 445 575 CenturyTel Internet Holdings,
17488 420 598 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:62 9:1 12:1794 13:1
15:16 16:3 17:3 18:5 20:36 24:890
25:1 32:53 38:283 40:57 41:89 44:2
47:7 52:4 55:1 56:3 57:25 58:302
59:387 60:211 61:944 62:1025 63:1914 64:3204
65:2308 66:3146 67:728 68:650 69:1731 70:450
71:98 72:1215 73:1 74:161 75:79 76:1
77:31 80:842 81:776 82:653 83:364 84:507
85:725 86:427 87:488 88:241 89:808 90:3
91:172 97:1 116:1 117:1 118:1 119:1
120:1 121:136 122:141 123:38 124:574 125:794
128:310 129:219 130:130 131:343 132:49 133:9
134:186 135:42 136:170 137:112 138:196 139:52
140:504 141:141 142:368 143:208 144:273 145:43
146:313 147:146 148:373 149:189 150:114 151:115
152:94 153:119 154:5 155:247 156:151 157:173
158:169 159:149 160:98 161:86 162:227 163:163
164:446 165:381 166:246 167:282 168:501 169:120
170:388 171:15 172:1 189:172 190:416 192:5743
193:3718 194:2969 195:2211 196:957 198:3724 199:3275
200:4622 201:982 202:7201 203:7343 204:3968 205:2060
206:2391 207:2848 208:2456 209:3594 210:2382 211:929
212:1305 213:1429 214:407 215:39 216:4112 217:1164
218:348 219:274 220:855 221:375 222:259
End of report
Report Website: http://thyme.apnic.net
