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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 08 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237168
Prefixes after maximum aggregation: 122583
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 115504
Total ASes present in the Internet Routing Table: 26630
Prefixes per ASN: 8.91
Origin-only ASes present in the Internet Routing Table: 23180
Origin ASes announcing only one prefix: 11305
Transit ASes present in the Internet Routing Table: 3450
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: 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: 12
Number of addresses announced to Internet: 1789137024
Equivalent to 106 /8s, 164 /16s and 16 /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: 110159
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55334
Total APNIC prefixes after maximum aggregation: 21121
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52221
Unique aggregates announced from the APNIC address blocks: 23120
APNIC Region origin ASes present in the Internet Routing Table: 3079
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: 472
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 323862976
Equivalent to 19 /8s, 77 /16s and 193 /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: 111331
Total ARIN prefixes after maximum aggregation: 63945
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 82250
Unique aggregates announced from the ARIN address blocks: 32626
ARIN Region origin ASes present in the Internet Routing Table: 11934
ARIN Prefixes per ASN: 6.89
ARIN Region origin ASes announcing only one prefix: 4597
ARIN Region transit ASes present in the Internet Routing Table: 1114
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 352230784
Equivalent to 20 /8s, 254 /16s and 157 /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: 49501
Total RIPE prefixes after maximum aggregation: 31866
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46430
Unique aggregates announced from the RIPE address blocks: 30571
RIPE Region origin ASes present in the Internet Routing Table: 10449
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5549
RIPE Region transit ASes present in the Internet Routing Table: 1641
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 335700096
Equivalent to 20 /8s, 2 /16s and 96 /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: 17740
Total LACNIC prefixes after maximum aggregation: 4558
LACNIC Deaggregation factor: 3.89
Prefixes being announced from the LACNIC address blocks: 15638
Unique aggregates announced from the LACNIC address blocks: 8682
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 17.95
LACNIC Region origin ASes announcing only one prefix: 281
LACNIC Region transit ASes present in the Internet Routing Table: 149
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 45954304
Equivalent to 2 /8s, 189 /16s and 53 /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: 3240
Total AfriNIC prefixes after maximum aggregation: 1077
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2378
Unique aggregates announced from the AfriNIC address blocks: 1410
AfriNIC Region origin ASes present in the Internet Routing Table: 215
AfriNIC Prefixes per ASN: 11.06
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
4134 1100 11563 301 CHINANET-BACKBONE
9583 1100 81 418 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 767 33 673 Korea Telecom (ATM-MPLS)
7545 722 159 122 TPG Internet Pty Ltd
18101 608 119 52 Reliance Infocom Ltd Internet
1221 542 1951 422 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 480 130 140 Wantree Development
9443 439 121 70 Primus Telecommunications
7474 382 202 268 SingTel Optus Pty Ltd
17974 372 146 14 PT TELEKOMUNIKASI INDONESIA
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6147 1009 AT&T WorldNet Services
4323 1360 1014 358 Time Warner Telecom
2386 1261 630 770 AT&T Data Communications Serv
11492 1165 120 50 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 706 UUNET Technologies, Inc.
1785 875 462 216 AppliedTheory Corporation
20115 847 773 459 Charter Communications
3356 810 10878 410 Level 3 Communications, LLC
22773 803 2133 54 Cox Communications, Inc.
19262 801 2893 184 Verizon Global Networks
1239 796 2713 554 Sprint
209 728 3784 572 Qwest
5668 662 176 17 CenturyTel Internet Holdings,
3561 588 2324 373 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 334 168 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 269 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 238 188 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 1163 2419 217 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 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 216 187 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 280 869 225 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 99 6 7 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 67 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 45 294 35 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 1482 1412 Videsh Sanchar Nigam Ltd. Aut
11492 1165 1115 Cable One
18566 1030 1021 Covad Communications
4323 1360 1002 Time Warner Telecom
9498 1046 982 BHARTI BT INTERNET LTD.
8151 1163 946 UniNet S.A. de C.V.
6478 1121 937 AT&T Worldnet Services
17488 874 805 Hathway IP Over Cable Interne
4134 1100 799 CHINANET-BACKBONE
22773 803 749 Cox Communications, Inc.
9583 1100 682 Sify Limited
1785 875 659 AppliedTheory Corporation
5668 662 645 CenturyTel Internet Holdings,
19262 801 617 Verizon Global Networks
7545 722 600 TPG Internet Pty Ltd
18101 608 556 Reliance Infocom Ltd Internet
6517 584 551 Yipes Communications, Inc.
19916 569 522 OLM LLC
6197 1029 521 BellSouth Network Solutions,
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 *
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
172.14.254.0/24 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 /14:483 /15:951 /16:9705 /17:4171 /18:6723
/19:14659 /20:16732 /21:15622 /22:19843 /23:20839 /24:124460
/25:809 /26:1018 /27:541 /28:111 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1156 1165 Cable One
6478 1120 1121 AT&T Worldnet Services
18566 1012 1030 Covad Communications
2386 949 1261 AT&T Data Communications Serv
9583 945 1100 Sify Limited
7011 866 979 Citizens Utilities
4755 850 1482 Videsh Sanchar Nigam Ltd. Aut
7018 823 1497 AT&T WorldNet Services
6197 773 1029 BellSouth Network Solutions,
23577 758 767 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 574 1360 Time Warner Telecom
19916 564 569 OLM LLC
6517 540 584 Yipes Communications, Inc.
5668 520 662 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 509 608 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 24:992 25:1 32:57 33:3
38:357 40:64 41:387 44:2 47:8 52:3
55:3 56:3 57:21 58:479 59:415 60:384
61:990 62:938 63:1983 64:3296 65:2372 66:3561
67:907 68:684 69:2028 70:466 71:108 72:1429
73:7 74:746 75:264 76:158 77:418 78:270
79:11 80:871 81:795 82:579 83:356 84:616
85:819 86:356 87:585 88:282 89:1023 90:38
91:725 92:5 96:1 97:6 98:12 116:424
117:207 118:42 121:337 122:642 123:206 124:706
125:1037 128:310 129:195 130:141 131:367 132:57
133:9 134:193 135:34 136:190 137:82 138:152
139:76 140:514 141:145 142:372 143:259 144:321
145:50 146:326 147:127 148:485 149:184 150:168
151:137 152:92 153:121 154:11 155:260 156:164
157:223 158:160 159:194 160:132 161:100 162:190
163:183 164:500 165:397 166:290 167:309 168:517
169:129 170:416 171:24 172:5 189:113 190:1193
192:5724 193:4041 194:3204 195:2453 196:932 198:3797
199:3228 200:5205 201:1233 202:7473 203:7814 204:3978
205:1994 206:2419 207:2774 208:2928 209:3597 210:2499
211:1077 212:1303 213:1523 214:445 215:44 216:4088
217:1188 218:323 219:398 220:1013 221:406 222:267
End of report
