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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 26 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 208997
Prefixes after maximum aggregation: 112691
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101660
Total ASes present in the Internet Routing Table: 24195
Origin-only ASes present in the Internet Routing Table: 21077
Origin ASes announcing only one prefix: 10192
Transit ASes present in the Internet Routing Table: 3118
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: 3
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1667385100
Equivalent to 99 /8s, 98 /16s and 71 /24s
Percentage of available address space announced: 45.0
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 106996
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46667
Total APNIC prefixes after maximum aggregation: 18709
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 44121
Unique aggregates announced from the APNIC address blocks: 19236
APNIC Region origin ASes present in the Internet Routing Table: 2826
APNIC Region origin ASes announcing only one prefix: 789
APNIC Region transit ASes present in the Internet Routing Table: 417
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 281238112
Equivalent to 16 /8s, 195 /16s and 90 /24s
Percentage of available APNIC address space announced: 69.7
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: 102833
Total ARIN prefixes after maximum aggregation: 60774
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75736
Unique aggregates announced from the ARIN address blocks: 29036
ARIN Region origin ASes present in the Internet Routing Table: 11293
ARIN Region origin ASes announcing only one prefix: 4323
ARIN Region transit ASes present in the Internet Routing Table: 1041
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 314708096
Equivalent to 18 /8s, 194 /16s and 16 /24s
Percentage of available ARIN address space announced: 69.5
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: 43222
Total RIPE prefixes after maximum aggregation: 28237
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39916
Unique aggregates announced from the RIPE address blocks: 26583
RIPE Region origin ASes present in the Internet Routing Table: 9063
RIPE Region origin ASes announcing only one prefix: 4779
RIPE Region transit ASes present in the Internet Routing Table: 1461
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 287261860
Equivalent to 17 /8s, 31 /16s and 68 /24s
Percentage of available RIPE address space announced: 77.8
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: 13751
Total LACNIC prefixes after maximum aggregation: 4013
LACNIC Deaggregation factor: 3.43
Prefixes being announced from the LACNIC address blocks: 11764
Unique aggregates announced from the LACNIC address blocks: 7197
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: 135
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36403712
Equivalent to 2 /8s, 43 /16s and 122 /24s
Percentage of available LACNIC address space announced: 54.2
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: 2522
Total AfriNIC prefixes after maximum aggregation: 957
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1790
Unique aggregates announced from the AfriNIC address blocks: 1160
AfriNIC Region origin ASes present in the Internet Routing Table: 174
AfriNIC Region origin ASes announcing only one prefix: 52
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5370624
Equivalent to 0 /8s, 81 /16s and 243 /24s
Percentage of available AfriNIC address space announced: 16.0
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 1277 8663 273 CHINANET-BACKBONE
4755 1089 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1025 109 16 Sify Limited
9498 933 467 64 BHARTI BT INTERNET LTD.
23577 773 34 700 Korea Telecom (ATM-MPLS)
4766 763 4944 313 Korea Telecom (KIX)
17488 588 37 20 Hathway IP Over Cable Interne
1221 569 1697 440 Telstra Pty Ltd
7545 560 126 74 TPG Internet Pty Ltd
18101 514 103 27 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 434 759 68 China Telecom (Shanghai)
17974 384 129 14 PT TELEKOMUNIKASI INDONESIA
4802 360 86 149 Wantree Development
17849 353 33 93 Telecommunications Technology
17557 349 34 168 Pakistan Telecom
2907 336 1749 309 SINET Japan
4837 334 4071 146 chinanet IDC center beijing n
7474 315 212 244 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1548 6127 995 AT&T WorldNet Services
2386 1107 585 732 AT&T Data Communications Serv
4323 1061 818 297 Time Warner Telecom
6197 1023 647 501 BellSouth Network Solutions,
18566 987 272 8 Covad Communications
701 937 6695 745 UUNET Technologies, Inc.
174 935 6789 865 Cogent Communications
11492 911 99 14 Cable One
1239 829 2730 579 Sprint
19262 808 2576 180 Verizon Global Networks
20115 795 689 412 Charter Communications
7011 729 218 452 Citizens Utilities
22773 723 1872 41 Cox Communications, Inc.
209 715 3750 563 Qwest
721 690 21836 280 DLA Systems Automation Center
852 609 1093 394 Telus Advanced Communications
5668 577 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 560 250 73 Canadian Research Network
6198 552 521 258 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1898 425 UUNET - Commercial IP service
3301 305 1199 287 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
24863 298 45 25 LINKdotNET AS number
8220 271 474 262 COLT Telecommunications
6746 270 95 247 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 237 2192 93 France Telecom Transpac
8708 228 282 216 Romania Data Systems S.A.
1257 216 1069 172 SWIPnet Swedish IP Network
3269 213 2391 71 TELECOM ITALIA
30890 211 18 90 SC Kappa Invexim SRL
3246 207 354 197 Song Networks
5416 205 13 13 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3352 182 1767 31 Ibernet, Internet Access Netw
3300 178 171 89 AUCS Communications Services
12479 176 578 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 909 2015 202 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 381 108 81 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 254 74 30 ENTEL CHILE S.A.
14117 238 16 13 Telefonica del Sur S.A.
7303 231 103 33 Telecom Argentina Stet-France
6147 225 180 24 Telefonica Del Peru
6503 217 170 92 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 158 22 37 INTERCABLE
7910 151 11 32 ANDINET ON LINE
20299 150 23 14 NEWCOM AMERICAS
23216 147 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 141 9 24 Telconet
19429 140 84 35 E.T.B.
14522 136 21 8 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 226 60 6 TEDATA
15475 154 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 112 6 5 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 52 13 15 MAURITIUS TELECOM
5713 45 294 35 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
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
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 1089 1014 Videsh Sanchar Nigam Ltd. Aut
9583 1025 1009 Sify Limited
4134 1277 1004 CHINANET-BACKBONE
18566 987 979 Covad Communications
11492 911 897 Cable One
9498 933 869 BHARTI BT INTERNET LTD.
4323 1061 764 Time Warner Telecom
8151 909 707 UniNet S.A. de C.V.
22773 723 682 Cox Communications, Inc.
19262 808 628 Verizon Global Networks
17488 588 568 Hathway IP Over Cable Interne
5668 577 558 CenturyTel Internet Holdings,
6197 1023 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
855 560 487 Canadian Research Network
18101 514 487 Reliance Infocom Ltd Internet
7545 560 486 TPG Internet Pty Ltd
15270 500 466 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 763 450 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 203.10.62.0/24 1221 Telstra Pty Ltd
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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 /8:19 /9:10 /10:13 /11:33 /12:115
/13:226 /14:414 /15:812 /16:9201 /17:3676 /18:5965
/19:12947 /20:14554 /21:13005 /22:16634 /23:17858 /24:111796
/25:658 /26:462 /27:372 /28:65 /29:39 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 987 Covad Communications
11492 897 911 Cable One
9583 854 1025 Sify Limited
7018 853 1548 AT&T WorldNet Services
2386 830 1107 AT&T Data Communications Serv
6197 795 1023 BellSouth Network Solutions,
23577 759 773 Korea Telecom (ATM-MPLS)
7011 632 729 Citizens Utilities
9498 591 933 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 500 1089 Videsh Sanchar Nigam Ltd. Aut
15270 468 500 PaeTec.net -a division of Pae
855 459 560 Canadian Research Network
18101 446 514 Reliance Infocom Ltd Internet
5668 444 577 CenturyTel Internet Holdings,
17488 411 588 Hathway IP Over Cable Interne
1239 409 829 Sprint
33588 402 424 Bresnan Communications, LLC.
6198 390 552 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:61 9:1 12:1657 13:1
15:15 16:3 17:3 18:5 20:36 24:873
25:1 32:54 38:278 40:57 41:66 44:2
47:10 52:4 55:1 56:3 57:25 58:292
59:374 60:203 61:953 62:1051 63:1902 64:3194
65:2299 66:3137 67:711 68:636 69:1712 70:425
71:133 72:1139 73:1 74:147 75:62 76:22
80:827 81:774 82:649 83:348 84:493 85:754
86:466 87:479 88:275 89:771 90:2 91:146
97:1 116:1 117:1 118:1 119:1 120:1
121:129 122:68 123:26 124:574 125:787 128:306
129:220 130:126 131:317 132:49 133:9 134:182
135:44 136:180 137:113 138:190 139:53 140:517
141:137 142:367 143:213 144:292 145:67 146:319
147:139 148:368 149:190 150:115 151:117 152:90
153:119 154:5 155:250 156:126 157:172 158:170
159:147 160:98 161:88 162:227 163:162 164:451
165:288 166:246 167:281 168:494 169:121 170:378
171:15 172:1 189:131 190:351 192:5738 193:3648
194:2917 195:2209 196:922 198:3782 199:3275 200:4614
201:961 202:7166 203:7292 204:3959 205:2079 206:2434
207:2898 208:2427 209:3570 210:2328 211:881 212:1292
213:1417 214:397 215:39 216:4076 217:1181 218:357
219:268 220:845 221:369 222:281
End of report
Report Website: http://thyme.apnic.net
