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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 06 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237016
Prefixes after maximum aggregation: 122503
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 115534
Total ASes present in the Internet Routing Table: 26607
Prefixes per ASN: 8.91
Origin-only ASes present in the Internet Routing Table: 23161
Origin ASes announcing only one prefix: 11297
Transit ASes present in the Internet Routing Table: 3446
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 18
Prefixes from unregistered ASNs in the Routing Table: 10
Unregistered ASNs in the Routing Table: 6
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1788963072
Equivalent to 106 /8s, 161 /16s and 105 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110123
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55337
Total APNIC prefixes after maximum aggregation: 21119
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52231
Unique aggregates announced from the APNIC address blocks: 23142
APNIC Region origin ASes present in the Internet Routing Table: 3077
APNIC Prefixes per ASN: 16.97
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 472
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 323927232
Equivalent to 19 /8s, 78 /16s and 188 /24s
Percentage of available APNIC address space announced: 74.1
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, 114/7, 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: 111280
Total ARIN prefixes after maximum aggregation: 63950
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 82227
Unique aggregates announced from the ARIN address blocks: 32621
ARIN Region origin ASes present in the Internet Routing Table: 11928
ARIN Prefixes per ASN: 6.89
ARIN Region origin ASes announcing only one prefix: 4598
ARIN Region transit ASes present in the Internet Routing Table: 1109
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 352160512
Equivalent to 20 /8s, 253 /16s and 139 /24s
Percentage of available ARIN address space announced: 77.7
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: 49430
Total RIPE prefixes after maximum aggregation: 31810
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46337
Unique aggregates announced from the RIPE address blocks: 30575
RIPE Region origin ASes present in the Internet Routing Table: 10443
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5550
RIPE Region transit ASes present in the Internet Routing Table: 1643
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 335588992
Equivalent to 20 /8s, 0 /16s and 174 /24s
Percentage of available RIPE address space announced: 76.9
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17720
Total LACNIC prefixes after maximum aggregation: 4543
LACNIC Deaggregation factor: 3.90
Prefixes being announced from the LACNIC address blocks: 15616
Unique aggregates announced from the LACNIC address blocks: 8708
LACNIC Region origin ASes present in the Internet Routing Table: 866
LACNIC Prefixes per ASN: 18.03
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 150
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 45836800
Equivalent to 2 /8s, 187 /16s and 106 /24s
Percentage of available LACNIC address space announced: 45.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3230
Total AfriNIC prefixes after maximum aggregation: 1065
AfriNIC Deaggregation factor: 3.03
Prefixes being announced from the AfriNIC address blocks: 2381
Unique aggregates announced from the AfriNIC address blocks: 1401
AfriNIC Region origin ASes present in the Internet Routing Table: 211
AfriNIC Prefixes per ASN: 11.28
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7630080
Equivalent to 0 /8s, 116 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 22.7
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
4755 1481 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1102 11568 303 CHINANET-BACKBONE
9583 1102 81 416 Sify Limited
9498 1046 549 64 BHARTI BT INTERNET LTD.
17488 874 57 69 Hathway IP Over Cable Interne
4766 814 5473 327 Korea Telecom (KIX)
23577 775 34 680 Korea Telecom (ATM-MPLS)
7545 722 159 122 TPG Internet Pty Ltd
18101 609 119 53 Reliance Infocom Ltd Internet
1221 543 1951 423 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 520 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 500 797 121 CNCGROUP IP network: China169
4802 487 133 141 Wantree Development
9443 440 121 71 Primus Telecommunications
7474 382 202 268 SingTel Optus Pty Ltd
17974 370 146 14 PT TELEKOMUNIKASI INDONESIA
4837 357 5058 169 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6146 1007 AT&T WorldNet Services
4323 1362 1014 360 Time Warner Telecom
2386 1251 630 763 AT&T Data Communications Serv
11492 1162 119 49 Cable One
6478 1121 329 184 AT&T Worldnet Services
6197 1030 718 508 BellSouth Network Solutions,
18566 1030 288 9 Covad Communications
174 982 6882 847 Cogent Communications
7011 979 290 562 Citizens Utilities
701 898 6568 704 UUNET Technologies, Inc.
1785 875 462 216 AppliedTheory Corporation
20115 847 773 459 Charter Communications
22773 802 2133 54 Cox Communications, Inc.
19262 797 2861 182 Verizon Global Networks
1239 795 2713 553 Sprint
3356 788 10877 405 Level 3 Communications, LLC
209 731 3784 574 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
3561 591 2324 375 Savvis
6517 584 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 470 1917 383 UUNET - Commercial IP service
9116 335 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
8551 310 298 41 Bezeq International
8708 274 421 245 Romania Data Systems S.A.
6746 273 129 251 Dynamic Network Technologies,
8866 269 62 25 Bulgarian Telecommunication C
680 268 2045 254 DFN-IP service G-WiN
3215 263 2503 98 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
8452 251 188 7 TEDATA
3352 235 1932 41 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 197 171 93 AUCS Communications Services
12479 195 578 6 Uni2 Autonomous System
1257 194 1195 177 SWIPnet Swedish IP Network
3246 193 257 184 Song Networks
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1156 2405 218 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 381 33 8 SatNet S.A.
11172 377 114 60 Servicios Alestra S.A de C.V
7303 367 177 54 Telecom Argentina Stet-France
6471 353 77 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 265 73 27 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 235 128 3 Cable-Wireless Panama
23216 220 17 47 RAMtelecom Telecomunicaciones
6503 216 187 85 AVANTEL, S.A.
7738 205 538 24 Telecomunicacoes da Bahia S.A
28573 203 314 27 NET Servicos de Comunicao S.A
21826 184 33 49 INTERCABLE
20299 181 33 30 NEWCOM AMERICAS
19169 180 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 379 59 40 LINKdotNET AS number
3741 279 869 225 The Internet Solution
20858 195 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 83 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 74 24 15 MAURITIUS TELECOM
16637 68 21 29 Johnnic e-Ventures
20484 64 5 6 Yalla Online Autonomous Syste
15706 57 12 4 Sudatel Internet Exchange Aut
29571 56 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1481 1412 Videsh Sanchar Nigam Ltd. Aut
11492 1162 1113 Cable One
18566 1030 1021 Covad Communications
4323 1362 1002 Time Warner Telecom
9498 1046 982 BHARTI BT INTERNET LTD.
8151 1156 938 UniNet S.A. de C.V.
6478 1121 937 AT&T Worldnet Services
17488 874 805 Hathway IP Over Cable Interne
4134 1102 799 CHINANET-BACKBONE
22773 802 748 Cox Communications, Inc.
9583 1102 686 Sify Limited
1785 875 659 AppliedTheory Corporation
5668 663 646 CenturyTel Internet Holdings,
19262 797 615 Verizon Global Networks
7545 722 600 TPG Internet Pty Ltd
18101 609 556 Reliance Infocom Ltd Internet
6517 584 551 Yipes Communications, Inc.
6197 1030 522 BellSouth Network Solutions,
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
65068 PRIVATE 79.171.184.0/21 43895 *
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
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
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
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
192.153.136.0/21 721 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 /8:18 /9:9 /10:16 /11:39 /12:136
/13:270 /14:482 /15:950 /16:9709 /17:4171 /18:6709
/19:14626 /20:16721 /21:15590 /22:19842 /23:20839 /24:124400
/25:804 /26:1017 /27:542 /28:113 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1153 1162 Cable One
6478 1120 1121 AT&T Worldnet Services
18566 1012 1030 Covad Communications
9583 947 1102 Sify Limited
2386 939 1251 AT&T Data Communications Serv
7011 866 979 Citizens Utilities
4755 850 1481 Videsh Sanchar Nigam Ltd. Aut
7018 825 1499 AT&T WorldNet Services
6197 774 1030 BellSouth Network Solutions,
23577 766 775 Korea Telecom (ATM-MPLS)
9498 730 1046 BHARTI BT INTERNET LTD.
17488 689 874 Hathway IP Over Cable Interne
1785 682 875 AppliedTheory Corporation
4766 605 814 Korea Telecom (KIX)
4323 575 1362 Time Warner Telecom
19916 564 569 OLM LLC
6517 540 584 Yipes Communications, Inc.
5668 521 663 CenturyTel Internet Holdings,
4668 510 520 LG-EDS Systems Inc.
18101 509 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1798 15:19 16:3 17:6
18:13 20:35 24:1000 25:1 32:57 33:3
38:357 40:64 41:387 44:2 47:8 52:3
55:3 56:3 57:21 58:477 59:415 60:383
61:991 62:934 63:1985 64:3288 65:2369 66:3573
67:859 68:684 69:2020 70:466 71:107 72:1419
73:8 74:745 75:264 76:157 77:413 78:265
79:9 80:861 81:793 82:576 83:349 84:636
85:816 86:411 87:589 88:282 89:1026 90:38
91:710 92:5 96:1 97:6 98:12 116:419
117:207 118:43 121:335 122:642 123:205 124:707
125:1036 128:308 129:195 130:142 131:365 132:56
133:9 134:193 135:34 136:189 137:82 138:156
139:76 140:513 141:145 142:372 143:258 144:318
145:46 146:328 147:130 148:483 149:184 150:167
151:137 152:92 153:121 154:11 155:262 156:164
157:224 158:159 159:193 160:129 161:100 162:190
163:182 164:500 165:398 166:290 167:308 168:516
169:129 170:418 171:22 172:5 189:103 190:1189
192:5722 193:3992 194:3207 195:2454 196:937 198:3802
199:3228 200:5212 201:1227 202:7481 203:7813 204:3984
205:2011 206:2420 207:2795 208:2924 209:3606 210:2498
211:1077 212:1302 213:1522 214:430 215:43 216:4100
217:1197 218:323 219:394 220:1019 221:407 222:265
End of report
