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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 28 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 239009
Prefixes after maximum aggregation: 122955
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 116751
Total ASes present in the Internet Routing Table: 26764
Prefixes per ASN: 8.93
Origin-only ASes present in the Internet Routing Table: 23303
Origin ASes announcing only one prefix: 11357
Transit ASes present in the Internet Routing Table: 3461
Transit-only ASes present in the Internet Routing Table: 73
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: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1795588736
Equivalent to 107 /8s, 6 /16s and 130 /24s
Percentage of available address space announced: 48.4
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 111675
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55693
Total APNIC prefixes after maximum aggregation: 21248
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52579
Unique aggregates announced from the APNIC address blocks: 23337
APNIC Region origin ASes present in the Internet Routing Table: 3093
APNIC Prefixes per ASN: 17.00
APNIC Region origin ASes announcing only one prefix: 807
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: 325979072
Equivalent to 19 /8s, 110 /16s and 11 /24s
Percentage of available APNIC address space announced: 74.6
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: 111948
Total ARIN prefixes after maximum aggregation: 63893
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82578
Unique aggregates announced from the ARIN address blocks: 32892
ARIN Region origin ASes present in the Internet Routing Table: 11957
ARIN Prefixes per ASN: 6.91
ARIN Region origin ASes announcing only one prefix: 4597
ARIN Region transit ASes present in the Internet Routing Table: 1126
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 353752960
Equivalent to 21 /8s, 21 /16s and 215 /24s
Percentage of available ARIN address space announced: 78.1
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: 50136
Total RIPE prefixes after maximum aggregation: 32147
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 46985
Unique aggregates announced from the RIPE address blocks: 31145
RIPE Region origin ASes present in the Internet Routing Table: 10548
RIPE Prefixes per ASN: 4.45
RIPE Region origin ASes announcing only one prefix: 5602
RIPE Region transit ASes present in the Internet Routing Table: 1638
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 337145216
Equivalent to 20 /8s, 24 /16s and 109 /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: 17938
Total LACNIC prefixes after maximum aggregation: 4574
LACNIC Deaggregation factor: 3.92
Prefixes being announced from the LACNIC address blocks: 15922
Unique aggregates announced from the LACNIC address blocks: 8885
LACNIC Region origin ASes present in the Internet Routing Table: 878
LACNIC Prefixes per ASN: 18.13
LACNIC Region origin ASes announcing only one prefix: 283
LACNIC Region transit ASes present in the Internet Routing Table: 155
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46610176
Equivalent to 2 /8s, 199 /16s and 55 /24s
Percentage of available LACNIC address space announced: 46.3
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: 3274
Total AfriNIC prefixes after maximum aggregation: 1077
AfriNIC Deaggregation factor: 3.04
Prefixes being announced from the AfriNIC address blocks: 2427
Unique aggregates announced from the AfriNIC address blocks: 1436
AfriNIC Region origin ASes present in the Internet Routing Table: 214
AfriNIC Prefixes per ASN: 11.34
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 8133888
Equivalent to 0 /8s, 124 /16s and 29 /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 1474 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1104 11537 303 CHINANET-BACKBONE
9583 1093 81 423 Sify Limited
9498 1054 550 65 BHARTI BT INTERNET LTD.
17488 905 59 73 Hathway IP Over Cable Interne
4766 816 5474 329 Korea Telecom (KIX)
23577 798 34 682 Korea Telecom (ATM-MPLS)
7545 722 159 123 TPG Internet Pty Ltd
18101 607 120 55 Reliance Infocom Ltd Internet
1221 546 1951 423 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 529 869 79 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
4808 507 797 122 CNCGROUP IP network: China169
17676 503 10919 64 Softbank BB Corp.
4802 471 133 142 Wantree Development
9443 440 121 70 Primus Telecommunications
17974 402 146 14 PT TELEKOMUNIKASI INDONESIA
7474 382 202 268 SingTel Optus Pty Ltd
4837 360 5084 171 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1506 6140 1022 AT&T WorldNet Services
4323 1376 1017 363 Time Warner Telecom
2386 1281 633 790 AT&T Data Communications Serv
11492 1179 123 41 Cable One
6478 1123 329 178 AT&T Worldnet Services
18566 1033 288 9 Covad Communications
6197 1029 719 509 BellSouth Network Solutions,
7011 987 294 575 Citizens Utilities
174 967 6858 829 Cogent Communications
701 904 6550 710 UUNET Technologies, Inc.
20115 846 775 453 Charter Communications
3356 833 10887 415 Level 3 Communications, LLC
22773 821 2133 54 Cox Communications, Inc.
19262 814 2965 187 Verizon Global Networks
1239 799 2712 556 Sprint
209 743 3786 583 Qwest
5668 660 176 17 CenturyTel Internet Holdings,
15270 608 161 41 PaeTec.net -a division of Pae
6517 592 163 33 Yipes Communications, Inc.
852 583 1109 358 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 468 1917 381 UUNET - Commercial IP service
3292 404 1653 365 TDC Tele Danmark
9116 346 184 28 Goldenlines main autonomous s
3301 319 1457 294 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8866 280 78 26 Bulgarian Telecommunication C
8551 277 266 40 Bezeq International
6746 275 129 252 Dynamic Network Technologies,
8708 274 421 244 Romania Data Systems S.A.
8452 269 188 7 TEDATA
680 268 2045 254 DFN-IP service G-WiN
3215 266 2535 92 France Telecom Transpac
8220 254 445 234 COLT Telecommunications
3352 235 1932 41 Ibernet, Internet Access Netw
3269 227 2965 69 TELECOM ITALIA
3300 215 220 103 AUCS Communications Services
9121 211 1444 26 TTnet Autonomous System
1257 195 1195 178 SWIPnet Swedish IP Network
12479 195 578 6 Uni2 Autonomous System
2856 189 2304 158 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1160 2409 218 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 392 191 57 Telecom Argentina Stet-France
14522 381 33 8 SatNet S.A.
11172 379 115 62 Servicios Alestra S.A de C.V
6471 363 85 38 ENTEL CHILE S.A.
22047 319 254 13 VTR PUNTO NET S.A.
10481 300 120 10 Prima S.A.
10620 285 78 20 TVCABLE BOGOTA
14117 285 19 15 Telefonica del Sur S.A.
6147 258 214 21 Telefonica Del Peru
7738 242 602 25 Telecomunicacoes da Bahia S.A
11556 235 128 3 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 205 34 30 NEWCOM AMERICAS
19169 188 12 20 Telconet
21826 186 33 47 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 393 61 39 LINKdotNET AS number
3741 279 869 224 The Internet Solution
20858 200 34 3 EgyNet
6713 145 135 11 Itissalat Al-MAGHRIB
2018 144 300 116 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 76 174 73 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 57 13 7 Ci Telecom Autonomous system
33774 50 37 28 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
16637 42 21 28 Johnnic e-Ventures
8524 32 2 10 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1474 1405 Videsh Sanchar Nigam Ltd. Aut
11492 1179 1138 Cable One
18566 1033 1024 Covad Communications
4323 1376 1013 Time Warner Telecom
9498 1054 989 BHARTI BT INTERNET LTD.
6478 1123 945 AT&T Worldnet Services
8151 1160 942 UniNet S.A. de C.V.
17488 905 832 Hathway IP Over Cable Interne
4134 1104 801 CHINANET-BACKBONE
22773 821 767 Cox Communications, Inc.
9583 1093 670 Sify Limited
5668 660 643 CenturyTel Internet Holdings,
19262 814 627 Verizon Global Networks
7545 722 599 TPG Internet Pty Ltd
15270 608 567 PaeTec.net -a division of Pae
6517 592 559 Yipes Communications, Inc.
18101 607 552 Reliance Infocom Ltd Internet
11830 539 530 Instituto Costarricense de El
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
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
172.14.254.0/24 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
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 /14:485 /15:952 /16:9748 /17:4194 /18:6788
/19:14791 /20:16844 /21:15821 /22:20010 /23:20988 /24:125399
/25:810 /26:1021 /27:554 /28:104 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1170 1179 Cable One
6478 1122 1123 AT&T Worldnet Services
18566 1015 1033 Covad Communications
2386 972 1281 AT&T Data Communications Serv
9583 938 1093 Sify Limited
7011 872 987 Citizens Utilities
4755 846 1474 Videsh Sanchar Nigam Ltd. Aut
7018 827 1506 AT&T WorldNet Services
23577 789 798 Korea Telecom (ATM-MPLS)
6197 772 1029 BellSouth Network Solutions,
9498 736 1054 BHARTI BT INTERNET LTD.
17488 720 905 Hathway IP Over Cable Interne
4766 606 816 Korea Telecom (KIX)
4323 582 1376 Time Warner Telecom
15270 570 608 PaeTec.net -a division of Pae
19916 564 569 OLM LLC
6517 548 592 Yipes Communications, Inc.
5668 519 660 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 503 607 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1870 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 41:413 44:2
47:8 52:3 55:3 56:3 57:21 58:477
59:415 60:383 61:992 62:943 63:1978 64:3297
65:2362 66:3593 67:931 68:650 69:2033 70:466
71:105 72:1436 73:7 74:743 75:263 76:147
77:463 78:354 79:28 80:894 81:796 82:572
83:353 84:615 85:884 86:362 87:603 88:286
89:1047 90:39 91:779 92:11 96:2 97:6
98:16 114:1 115:1 116:455 117:230 118:48
121:349 122:654 123:205 124:725 125:1049 128:309
129:195 130:136 131:371 132:58 133:9 134:193
135:34 136:194 137:82 138:153 139:75 140:517
141:146 142:374 143:259 144:322 145:47 146:333
147:124 148:481 149:185 150:170 151:137 152:95
153:122 154:11 155:267 156:199 157:226 158:160
159:197 160:183 161:99 162:190 163:185 164:558
165:410 166:290 167:309 168:543 169:130 170:419
171:29 172:5 173:1 189:118 190:1251 192:5732
193:4036 194:3208 195:2326 196:929 198:3798 199:3233
200:5248 201:1280 202:7439 203:7816 204:3984 205:2002
206:2405 207:2770 208:2979 209:3569 210:2503 211:1107
212:1314 213:1587 214:405 215:45 216:4101 217:1205
218:340 219:400 220:1000 221:410 222:281
End of report
