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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 09 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237228
Prefixes after maximum aggregation: 122673
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 115599
Total ASes present in the Internet Routing Table: 26637
Prefixes per ASN: 8.91
Origin-only ASes present in the Internet Routing Table: 23194
Origin ASes announcing only one prefix: 11304
Transit ASes present in the Internet Routing Table: 3443
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 13
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: 10
Number of addresses announced to Internet: 1789181696
Equivalent to 106 /8s, 164 /16s and 191 /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: 110128
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55390
Total APNIC prefixes after maximum aggregation: 21136
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52280
Unique aggregates announced from the APNIC address blocks: 23143
APNIC Region origin ASes present in the Internet Routing Table: 3082
APNIC Prefixes per ASN: 16.96
APNIC Region origin ASes announcing only one prefix: 808
APNIC Region transit ASes present in the Internet Routing Table: 470
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 323845824
Equivalent to 19 /8s, 77 /16s and 126 /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: 111416
Total ARIN prefixes after maximum aggregation: 63995
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 82277
Unique aggregates announced from the ARIN address blocks: 32674
ARIN Region origin ASes present in the Internet Routing Table: 11932
ARIN Prefixes per ASN: 6.90
ARIN Region origin ASes announcing only one prefix: 4594
ARIN Region transit ASes present in the Internet Routing Table: 1120
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 352358784
Equivalent to 21 /8s, 0 /16s and 145 /24s
Percentage of available ARIN address space announced: 77.8
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: 49567
Total RIPE prefixes after maximum aggregation: 31892
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46459
Unique aggregates announced from the RIPE address blocks: 30589
RIPE Region origin ASes present in the Internet Routing Table: 10454
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5547
RIPE Region transit ASes present in the Internet Routing Table: 1634
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 335749376
Equivalent to 20 /8s, 3 /16s and 33 /24s
Percentage of available RIPE address space announced: 77.0
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: 17635
Total LACNIC prefixes after maximum aggregation: 4570
LACNIC Deaggregation factor: 3.86
Prefixes being announced from the LACNIC address blocks: 15653
Unique aggregates announced from the LACNIC address blocks: 8681
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 17.97
LACNIC Region origin ASes announcing only one prefix: 285
LACNIC Region transit ASes present in the Internet Routing Table: 148
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 45961216
Equivalent to 2 /8s, 189 /16s and 80 /24s
Percentage of available LACNIC address space announced: 45.7
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: 3198
Total AfriNIC prefixes after maximum aggregation: 1064
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2371
Unique aggregates announced from the AfriNIC address blocks: 1410
AfriNIC Region origin ASes present in the Internet Routing Table: 215
AfriNIC Prefixes per ASN: 11.03
AfriNIC Region origin ASes announcing only one prefix: 70
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7633152
Equivalent to 0 /8s, 116 /16s and 121 /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 1482 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1100 81 418 Sify Limited
4134 1099 11555 300 CHINANET-BACKBONE
9498 1046 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 815 5474 328 Korea Telecom (KIX)
23577 774 34 680 Korea Telecom (ATM-MPLS)
7545 719 159 121 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 521 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 500 797 121 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
9443 440 121 70 Primus Telecommunications
7474 382 202 268 SingTel Optus Pty Ltd
17974 373 146 14 PT TELEKOMUNIKASI INDONESIA
4538 354 2973 35 China Education and Research
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6147 1006 AT&T WorldNet Services
4323 1361 1014 358 Time Warner Telecom
2386 1260 630 769 AT&T Data Communications Serv
11492 1166 121 49 Cable One
6478 1121 329 184 AT&T Worldnet Services
18566 1030 288 9 Covad Communications
6197 1029 718 508 BellSouth Network Solutions,
174 982 6882 847 Cogent Communications
7011 979 290 562 Citizens Utilities
701 900 6568 705 UUNET Technologies, Inc.
1785 874 462 215 AppliedTheory Corporation
20115 847 773 459 Charter Communications
3356 821 10886 411 Level 3 Communications, LLC
22773 806 2133 54 Cox Communications, Inc.
19262 801 2893 184 Verizon Global Networks
1239 796 2713 554 Sprint
209 728 3784 572 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
3561 592 2324 374 Savvis
852 583 1109 359 Telus Advanced Communications
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 316 6035 262 Deutsche Telekom AG
8551 311 298 41 Bezeq International
6746 274 130 252 Dynamic Network Technologies,
8708 274 421 245 Romania Data Systems S.A.
8866 271 62 25 Bulgarian Telecommunication C
680 268 2045 254 DFN-IP service G-WiN
3215 263 2503 98 France Telecom Transpac
8220 256 444 238 COLT Telecommunications
8452 246 188 7 TEDATA
3352 235 1932 41 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 198 171 93 AUCS Communications Services
3246 195 257 185 Song Networks
12479 195 578 6 Uni2 Autonomous System
1257 194 1195 177 SWIPnet Swedish IP Network
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1159 2415 225 UniNet S.A. de C.V.
11830 539 299 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 373 180 56 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 252 70 44 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 218 17 45 RAMtelecom Telecomunicaciones
6503 215 187 85 AVANTEL, S.A.
28573 213 314 27 NET Servicos de Comunicao S.A
7738 205 538 24 Telecomunicacoes da Bahia S.A
21826 185 33 50 INTERCABLE
19169 182 12 19 Telconet
20299 181 33 30 NEWCOM AMERICAS
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 380 60 40 LINKdotNET AS number
3741 281 869 226 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 75 24 15 MAURITIUS TELECOM
16637 68 21 29 Johnnic e-Ventures
20484 63 5 5 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 45 294 35 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
21152 31 2 5 AS for the uplinks of Soficom
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1482 1412 Videsh Sanchar Nigam Ltd. Aut
11492 1166 1117 Cable One
18566 1030 1021 Covad Communications
4323 1361 1003 Time Warner Telecom
9498 1046 982 BHARTI BT INTERNET LTD.
6478 1121 937 AT&T Worldnet Services
8151 1159 934 UniNet S.A. de C.V.
17488 879 809 Hathway IP Over Cable Interne
4134 1099 799 CHINANET-BACKBONE
22773 806 752 Cox Communications, Inc.
9583 1100 682 Sify Limited
1785 874 659 AppliedTheory Corporation
5668 664 647 CenturyTel Internet Holdings,
19262 801 617 Verizon Global Networks
7545 719 598 TPG Internet Pty Ltd
18101 609 556 Reliance Infocom Ltd Internet
6517 583 550 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
6197 1029 521 BellSouth Network Solutions,
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 *
64718 PRIVATE 81.200.197.0/24 25325 AS of Deutsche Bahn
64718 PRIVATE 81.200.198.0/23 25325 AS of Deutsche Bahn
64719 PRIVATE 81.200.204.0/24 25325 AS of Deutsche Bahn
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
172.33.1.0/24 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 /14:483 /15:948 /16:9698 /17:4188 /18:6744
/19:14666 /20:16748 /21:15641 /22:19868 /23:20840 /24:124471
/25:800 /26:1008 /27:527 /28:97 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1157 1166 Cable One
6478 1120 1121 AT&T Worldnet Services
18566 1012 1030 Covad Communications
2386 948 1260 AT&T Data Communications Serv
9583 945 1100 Sify Limited
7011 866 979 Citizens Utilities
4755 850 1482 Videsh Sanchar Nigam Ltd. Aut
7018 826 1499 AT&T WorldNet Services
6197 773 1029 BellSouth Network Solutions,
23577 765 774 Korea Telecom (ATM-MPLS)
9498 730 1046 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
1785 682 874 AppliedTheory Corporation
4766 606 815 Korea Telecom (KIX)
4323 574 1361 Time Warner Telecom
19916 564 569 OLM LLC
6517 539 583 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 509 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1816 15:19 16:3 17:6
18:13 20:35 24:993 25:1 32:57 33:3
38:360 40:64 41:395 44:2 47:8 52:3
55:3 56:3 57:21 58:479 59:415 60:384
61:988 62:939 63:1981 64:3298 65:2376 66:3551
67:906 68:678 69:2027 70:466 71:108 72:1433
73:7 74:745 75:265 76:151 77:419 78:270
79:11 80:869 81:798 82:579 83:350 84:617
85:822 86:351 87:589 88:282 89:1031 90:38
91:728 92:5 96:1 97:6 98:9 116:430
117:224 118:43 121:337 122:643 123:208 124:706
125:1038 128:310 129:195 130:141 131:369 132:57
133:9 134:193 135:34 136:191 137:82 138:152
139:76 140:517 141:145 142:372 143:257 144:324
145:50 146:325 147:130 148:485 149:184 150:111
151:137 152:93 153:121 154:11 155:260 156:164
157:223 158:160 159:198 160:132 161:100 162:190
163:183 164:499 165:397 166:290 167:309 168:516
169:129 170:419 171:24 172:3 189:113 190:1198
192:5731 193:4046 194:3206 195:2460 196:918 198:3811
199:3224 200:5193 201:1254 202:7477 203:7813 204:3982
205:1999 206:2432 207:2784 208:2918 209:3595 210:2499
211:1078 212:1306 213:1503 214:445 215:44 216:4090
217:1177 218:320 219:397 220:1013 221:407 222:267
End of report
