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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 22 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 238226
Prefixes after maximum aggregation: 122764
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 116460
Total ASes present in the Internet Routing Table: 26727
Prefixes per ASN: 8.91
Origin-only ASes present in the Internet Routing Table: 23273
Origin ASes announcing only one prefix: 11333
Transit ASes present in the Internet Routing Table: 3454
Transit-only ASes present in the Internet Routing Table: 77
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: 11
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1794766720
Equivalent to 106 /8s, 249 /16s and 247 /24s
Percentage of available address space announced: 48.4
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110959
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55632
Total APNIC prefixes after maximum aggregation: 21222
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52524
Unique aggregates announced from the APNIC address blocks: 23272
APNIC Region origin ASes present in the Internet Routing Table: 3091
APNIC Prefixes per ASN: 16.99
APNIC Region origin ASes announcing only one prefix: 806
APNIC Region transit ASes present in the Internet Routing Table: 476
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 325786560
Equivalent to 19 /8s, 107 /16s and 27 /24s
Percentage of available APNIC address space announced: 74.5
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: 111706
Total ARIN prefixes after maximum aggregation: 63804
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82505
Unique aggregates announced from the ARIN address blocks: 32842
ARIN Region origin ASes present in the Internet Routing Table: 11949
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: 1125
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 353328000
Equivalent to 21 /8s, 15 /16s and 91 /24s
Percentage of available ARIN address space announced: 78.0
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: 49780
Total RIPE prefixes after maximum aggregation: 32077
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46622
Unique aggregates announced from the RIPE address blocks: 31048
RIPE Region origin ASes present in the Internet Routing Table: 10516
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5579
RIPE Region transit ASes present in the Internet Routing Table: 1639
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 337119872
Equivalent to 20 /8s, 24 /16s and 10 /24s
Percentage of available RIPE address space announced: 77.3
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: 17841
Total LACNIC prefixes after maximum aggregation: 4567
LACNIC Deaggregation factor: 3.91
Prefixes being announced from the LACNIC address blocks: 15873
Unique aggregates announced from the LACNIC address blocks: 8820
LACNIC Region origin ASes present in the Internet Routing Table: 879
LACNIC Prefixes per ASN: 18.06
LACNIC Region origin ASes announcing only one prefix: 285
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46342656
Equivalent to 2 /8s, 195 /16s and 34 /24s
Percentage of available LACNIC address space announced: 46.0
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: 3248
Total AfriNIC prefixes after maximum aggregation: 1080
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2402
Unique aggregates announced from the AfriNIC address blocks: 1417
AfriNIC Region origin ASes present in the Internet Routing Table: 214
AfriNIC Prefixes per ASN: 11.22
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8136192
Equivalent to 0 /8s, 124 /16s and 38 /24s
Percentage of available AfriNIC address space announced: 24.2
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 1469 383 70 Videsh Sanchar Nigam Ltd. Aut
4134 1104 11565 303 CHINANET-BACKBONE
9583 1095 81 422 Sify Limited
9498 1050 549 64 BHARTI BT INTERNET LTD.
17488 883 57 70 Hathway IP Over Cable Interne
4766 816 5474 329 Korea Telecom (KIX)
23577 798 33 682 Korea Telecom (ATM-MPLS)
7545 723 159 123 TPG Internet Pty Ltd
18101 607 120 56 Reliance Infocom Ltd Internet
1221 546 1951 423 Telstra Pty Ltd
9829 531 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
4808 504 799 122 CNCGROUP IP network: China169
17676 503 10919 64 Softbank BB Corp.
4802 482 130 142 Wantree Development
9443 440 121 70 Primus Telecommunications
17974 396 146 14 PT TELEKOMUNIKASI INDONESIA
7474 382 202 268 SingTel Optus Pty Ltd
4837 358 5068 170 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6140 1011 AT&T WorldNet Services
4323 1378 1017 364 Time Warner Telecom
2386 1272 633 786 AT&T Data Communications Serv
11492 1177 123 40 Cable One
6478 1125 330 174 AT&T Worldnet Services
18566 1033 288 9 Covad Communications
6197 1029 719 509 BellSouth Network Solutions,
7011 983 292 571 Citizens Utilities
174 968 6857 829 Cogent Communications
701 903 6566 708 UUNET Technologies, Inc.
20115 846 775 453 Charter Communications
3356 833 10887 415 Level 3 Communications, LLC
22773 820 2133 54 Cox Communications, Inc.
19262 813 2934 181 Verizon Global Networks
1239 799 2711 556 Sprint
209 739 3787 582 Qwest
5668 661 176 17 CenturyTel Internet Holdings,
15270 608 161 41 PaeTec.net -a division of Pae
6517 595 163 33 Yipes Communications, Inc.
852 582 1109 358 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 469 1917 382 UUNET - Commercial IP service
9116 348 184 28 Goldenlines main autonomous s
8551 325 314 40 Bezeq International
3301 318 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8866 281 78 26 Bulgarian Telecommunication C
6746 275 129 252 Dynamic Network Technologies,
8708 275 421 245 Romania Data Systems S.A.
680 268 2045 254 DFN-IP service G-WiN
3215 266 2535 92 France Telecom Transpac
8220 257 445 236 COLT Telecommunications
8452 239 188 7 TEDATA
3352 235 1932 41 Ibernet, Internet Access Netw
3269 230 2967 72 TELECOM ITALIA
3292 222 1386 203 TDC Tele Danmark
3300 214 220 102 AUCS Communications Services
9121 210 1442 25 TTnet Autonomous System
1257 195 1195 178 SWIPnet Swedish IP Network
12479 194 578 6 Uni2 Autonomous System
2856 188 2303 157 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1162 2419 216 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 381 186 56 Telecom Argentina Stet-France
14522 381 33 8 SatNet S.A.
11172 376 114 61 Servicios Alestra S.A de C.V
6471 358 85 38 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 277 76 28 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
7738 242 602 25 Telecomunicacoes da Bahia S.A
11556 236 128 4 Cable-Wireless Panama
23216 220 17 47 RAMtelecom Telecomunicaciones
6503 218 187 86 AVANTEL, S.A.
28573 213 314 27 NET Servicos de Comunicao S.A
20299 199 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 185 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 391 60 39 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 199 34 4 EgyNet
2018 144 300 116 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
5536 124 8 10 Internet Egypt Network
33783 118 8 19 EEPAD TISP TELECOM & INTERNET
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 81 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 74 24 15 MAURITIUS TELECOM
20484 65 5 6 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
29571 56 13 7 Ci Telecom Autonomous system
33774 50 37 28 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
16637 33 21 29 Johnnic e-Ventures
8524 32 2 10 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1469 1399 Videsh Sanchar Nigam Ltd. Aut
11492 1177 1137 Cable One
18566 1033 1024 Covad Communications
4323 1378 1014 Time Warner Telecom
9498 1050 986 BHARTI BT INTERNET LTD.
6478 1125 951 AT&T Worldnet Services
8151 1162 946 UniNet S.A. de C.V.
17488 883 813 Hathway IP Over Cable Interne
4134 1104 801 CHINANET-BACKBONE
22773 820 766 Cox Communications, Inc.
9583 1095 673 Sify Limited
5668 661 644 CenturyTel Internet Holdings,
19262 813 632 Verizon Global Networks
7545 723 600 TPG Internet Pty Ltd
15270 608 567 PaeTec.net -a division of Pae
6517 595 562 Yipes Communications, Inc.
18101 607 551 Reliance Infocom Ltd Internet
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
9829 531 522 BSNL National Internet Backbo
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 41.204.180.0/24 36866 Jamii Telecommunicat
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
31.31.31.0/24 9730 The Best ISP to go Multimedia
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
173.173.173.0/24 9730 The Best ISP to go Multimedia
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 /11:40 /12:134
/13:270 /14:483 /15:948 /16:9745 /17:4205 /18:6778
/19:14753 /20:16856 /21:15761 /22:19951 /23:20931 /24:124826
/25:809 /26:1024 /27:553 /28:103 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1168 1177 Cable One
6478 1124 1125 AT&T Worldnet Services
18566 1015 1033 Covad Communications
2386 963 1272 AT&T Data Communications Serv
9583 940 1095 Sify Limited
7011 870 983 Citizens Utilities
4755 840 1469 Videsh Sanchar Nigam Ltd. Aut
7018 822 1498 AT&T WorldNet Services
23577 789 798 Korea Telecom (ATM-MPLS)
6197 772 1029 BellSouth Network Solutions,
9498 734 1050 BHARTI BT INTERNET LTD.
17488 698 883 Hathway IP Over Cable Interne
4766 606 816 Korea Telecom (KIX)
4323 582 1378 Time Warner Telecom
15270 570 608 PaeTec.net -a division of Pae
19916 564 569 OLM LLC
6517 551 595 Yipes Communications, Inc.
5668 521 661 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 502 607 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1865 13:1 15:20 16:3
17:6 18:13 20:35 24:1007 25:1 31:1
32:62 33:3 38:361 40:64 41:390 44:2
47:8 52:3 55:3 56:3 57:21 58:479
59:415 60:384 61:992 62:938 63:1980 64:3302
65:2367 66:3590 67:910 68:650 69:2033 70:467
71:105 72:1443 73:7 74:737 75:263 76:141
77:440 78:301 79:17 80:862 81:773 82:567
83:354 84:614 85:875 86:363 87:595 88:284
89:1038 90:39 91:756 92:5 96:2 97:6
98:15 114:1 115:1 116:432 117:229 118:46
121:333 122:651 123:206 124:724 125:1047 128:308
129:195 130:136 131:371 132:59 133:9 134:193
135:34 136:193 137:82 138:153 139:76 140:517
141:146 142:373 143:259 144:322 145:48 146:331
147:125 148:478 149:185 150:113 151:137 152:95
153:122 154:11 155:262 156:164 157:225 158:160
159:197 160:184 161:102 162:194 163:186 164:498
165:405 166:287 167:309 168:520 169:130 170:418
171:29 172:3 173:1 189:113 190:1242 192:5725
193:4034 194:3190 195:2327 196:932 198:3800 199:3211
200:5252 201:1280 202:7453 203:7860 204:3981 205:2007
206:2403 207:2772 208:2970 209:3568 210:2496 211:1107
212:1292 213:1539 214:416 215:46 216:4100 217:1183
218:337 219:401 220:1007 221:409 222:279
End of report
