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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 18 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237854
Prefixes after maximum aggregation: 122667
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 116358
Total ASes present in the Internet Routing Table: 26654
Prefixes per ASN: 8.92
Origin-only ASes present in the Internet Routing Table: 23206
Origin ASes announcing only one prefix: 11293
Transit ASes present in the Internet Routing Table: 3448
Transit-only ASes present in the Internet Routing Table: 78
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: 14
Unregistered ASNs in the Routing Table: 11
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: 1792394496
Equivalent to 106 /8s, 213 /16s and 197 /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: 110699
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55546
Total APNIC prefixes after maximum aggregation: 21207
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52439
Unique aggregates announced from the APNIC address blocks: 23237
APNIC Region origin ASes present in the Internet Routing Table: 3081
APNIC Prefixes per ASN: 17.02
APNIC Region origin ASes announcing only one prefix: 802
APNIC Region transit ASes present in the Internet Routing Table: 473
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 325172672
Equivalent to 19 /8s, 97 /16s and 189 /24s
Percentage of available APNIC address space announced: 74.4
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: 111567
Total ARIN prefixes after maximum aggregation: 63799
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82452
Unique aggregates announced from the ARIN address blocks: 32796
ARIN Region origin ASes present in the Internet Routing Table: 11927
ARIN Prefixes per ASN: 6.91
ARIN Region origin ASes announcing only one prefix: 4586
ARIN Region transit ASes present in the Internet Routing Table: 1124
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 352507520
Equivalent to 21 /8s, 2 /16s and 214 /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: 49764
Total RIPE prefixes after maximum aggregation: 32004
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46614
Unique aggregates announced from the RIPE address blocks: 31058
RIPE Region origin ASes present in the Internet Routing Table: 10478
RIPE Prefixes per ASN: 4.45
RIPE Region origin ASes announcing only one prefix: 5553
RIPE Region transit ASes present in the Internet Routing Table: 1633
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 336863488
Equivalent to 20 /8s, 20 /16s and 33 /24s
Percentage of available RIPE address space announced: 77.2
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: 17708
Total LACNIC prefixes after maximum aggregation: 4564
LACNIC Deaggregation factor: 3.88
Prefixes being announced from the LACNIC address blocks: 15744
Unique aggregates announced from the LACNIC address blocks: 8797
LACNIC Region origin ASes present in the Internet Routing Table: 875
LACNIC Prefixes per ASN: 17.99
LACNIC Region origin ASes announcing only one prefix: 284
LACNIC Region transit ASes present in the Internet Routing Table: 152
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46027776
Equivalent to 2 /8s, 190 /16s and 84 /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: 3247
Total AfriNIC prefixes after maximum aggregation: 1079
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2390
Unique aggregates announced from the AfriNIC address blocks: 1399
AfriNIC Region origin ASes present in the Internet Routing Table: 214
AfriNIC Prefixes per ASN: 11.17
AfriNIC Region origin ASes announcing only one prefix: 68
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: 8170752
Equivalent to 0 /8s, 124 /16s and 173 /24s
Percentage of available AfriNIC address space announced: 24.4
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 1466 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1103 11565 303 CHINANET-BACKBONE
9583 1089 81 421 Sify Limited
9498 1051 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 816 5474 329 Korea Telecom (KIX)
23577 799 34 681 Korea Telecom (ATM-MPLS)
7545 720 159 122 TPG Internet Pty Ltd
18101 611 120 56 Reliance Infocom Ltd Internet
1221 543 1951 424 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 503 10919 64 Softbank BB Corp.
4808 502 799 122 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
9443 440 121 70 Primus Telecommunications
17974 398 146 14 PT TELEKOMUNIKASI INDONESIA
7474 383 202 269 SingTel Optus Pty Ltd
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 6140 1015 AT&T WorldNet Services
4323 1377 1016 363 Time Warner Telecom
2386 1271 632 781 AT&T Data Communications Serv
11492 1173 122 42 Cable One
6478 1124 329 179 AT&T Worldnet Services
18566 1032 288 9 Covad Communications
6197 1030 719 509 BellSouth Network Solutions,
7011 982 291 570 Citizens Utilities
174 974 6857 838 Cogent Communications
701 904 6569 706 UUNET Technologies, Inc.
20115 846 775 453 Charter Communications
3356 833 10887 415 Level 3 Communications, LLC
22773 819 2133 54 Cox Communications, Inc.
19262 812 2926 183 Verizon Global Networks
1239 799 2711 555 Sprint
209 737 3786 579 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
15270 603 161 41 PaeTec.net -a division of Pae
3561 591 2324 372 Savvis
6517 584 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 468 1917 381 UUNET - Commercial IP service
9116 347 184 28 Goldenlines main autonomous s
8551 327 314 40 Bezeq International
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8866 280 78 26 Bulgarian Telecommunication C
8708 275 421 245 Romania Data Systems S.A.
6746 274 129 252 Dynamic Network Technologies,
680 268 2045 254 DFN-IP service G-WiN
3215 264 2519 91 France Telecom Transpac
8220 258 445 236 COLT Telecommunications
8452 237 188 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
12479 194 578 6 Uni2 Autonomous System
1257 193 1194 176 SWIPnet Swedish IP Network
2856 187 2302 156 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1161 2419 215 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 381 185 59 Telecom Argentina Stet-France
14522 381 33 8 SatNet S.A.
11172 375 114 60 Servicios Alestra S.A de C.V
6471 357 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 260 72 43 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 220 17 47 RAMtelecom Telecomunicaciones
6503 217 187 86 AVANTEL, S.A.
28573 213 314 27 NET Servicos de Comunicao S.A
7738 206 538 24 Telecomunicacoes da Bahia S.A
20299 199 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 183 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 389 60 37 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 198 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 141 299 116 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 123 8 16 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 76 176 73 The Internetworking Company o
23889 76 24 15 MAURITIUS TELECOM
20484 64 5 6 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
29571 55 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
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 1466 1397 Videsh Sanchar Nigam Ltd. Aut
11492 1173 1131 Cable One
18566 1032 1023 Covad Communications
4323 1377 1014 Time Warner Telecom
9498 1051 987 BHARTI BT INTERNET LTD.
8151 1161 946 UniNet S.A. de C.V.
6478 1124 945 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
4134 1103 800 CHINANET-BACKBONE
22773 819 765 Cox Communications, Inc.
9583 1089 668 Sify Limited
5668 664 647 CenturyTel Internet Holdings,
19262 812 629 Verizon Global Networks
7545 720 598 TPG Internet Pty Ltd
15270 603 562 PaeTec.net -a division of Pae
18101 611 555 Reliance Infocom Ltd Internet
6517 584 551 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
6197 1030 521 BellSouth Network Solutions,
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 *
64517 PRIVATE 159.231.22.0/24 12226 CIBC / INTRIA-HP
64518 PRIVATE 159.231.23.0/24 12226 CIBC / INTRIA-HP
65044 PRIVATE 195.2.228.0/23 9044 SolNet Backbone
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 /11:39 /12:134
/13:270 /14:483 /15:947 /16:9722 /17:4202 /18:6774
/19:14698 /20:16840 /21:15742 /22:19915 /23:20912 /24:124638
/25:821 /26:1019 /27:541 /28:101 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1164 1173 Cable One
6478 1123 1124 AT&T Worldnet Services
18566 1014 1032 Covad Communications
2386 962 1271 AT&T Data Communications Serv
9583 933 1089 Sify Limited
7011 869 982 Citizens Utilities
4755 838 1466 Videsh Sanchar Nigam Ltd. Aut
7018 823 1497 AT&T WorldNet Services
23577 790 799 Korea Telecom (ATM-MPLS)
6197 773 1030 BellSouth Network Solutions,
9498 735 1051 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 606 816 Korea Telecom (KIX)
4323 582 1377 Time Warner Telecom
15270 565 603 PaeTec.net -a division of Pae
19916 564 569 OLM LLC
6517 540 584 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
4668 510 520 LG-EDS Systems Inc.
18101 507 611 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1838 13:1 15:19 16:3
17:6 18:13 20:35 24:1006 25:1 31:1
32:63 33:3 38:362 40:63 41:393 44:2
47:8 52:3 55:3 56:3 57:21 58:472
59:414 60:384 61:990 62:937 63:1979 64:3294
65:2365 66:3582 67:896 68:647 69:2029 70:465
71:105 72:1438 73:7 74:735 75:263 76:139
77:433 78:295 79:17 80:876 81:772 82:569
83:351 84:616 85:889 86:359 87:595 88:284
89:1026 90:39 91:748 92:5 96:2 97:6
98:13 116:428 117:224 118:46 121:330 122:641
123:204 124:719 125:1051 128:308 129:195 130:136
131:371 132:60 133:9 134:194 135:34 136:189
137:81 138:153 139:75 140:500 141:146 142:373
143:257 144:325 145:48 146:331 147:124 148:485
149:185 150:113 151:137 152:95 153:122 154:11
155:259 156:164 157:225 158:160 159:197 160:162
161:102 162:190 163:184 164:499 165:404 166:289
167:309 168:514 169:129 170:418 171:29 172:3
173:1 189:112 190:1228 192:5727 193:4040 194:3204
195:2329 196:924 198:3795 199:3224 200:5250 201:1243
202:7448 203:7846 204:3985 205:2005 206:2406 207:2782
208:2962 209:3582 210:2494 211:1107 212:1307 213:1541
214:414 215:44 216:4094 217:1189 218:337 219:399
220:1016 221:408 222:277
End of report
