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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 04 May, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 254798
Prefixes after maximum aggregation: 127004
Deaggregation factor: 2.01
Unique aggregates announced to Internet: 123503
Total ASes present in the Internet Routing Table: 28078
Prefixes per ASN: 9.07
Origin-only ASes present in the Internet Routing Table: 24472
Origin ASes announcing only one prefix: 11395
Transit ASes present in the Internet Routing Table: 3606
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: 19
Max AS path prepend of ASN (44859) 15
Prefixes from unregistered ASNs in the Routing Table: 25331
Unregistered ASNs in the Routing Table: 1888
Number of 32-bit ASNs allocated by the RIRs: 46
Prefixes from 32-bit ASNs in the Routing Table: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 787
Number of addresses announced to Internet: 1848356256
Equivalent to 110 /8s, 43 /16s and 173 /24s
Percentage of available address space announced: 49.9
Percentage of allocated address space announced: 61.2
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.7
Total number of prefixes smaller than registry allocations: 122530
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43089
Total APNIC prefixes after maximum aggregation: 13430
APNIC Deaggregation factor: 3.21
Prefixes being announced from the APNIC address blocks: 55473
Unique aggregates announced from the APNIC address blocks: 23560
APNIC Region origin ASes present in the Internet Routing Table: 1929
APNIC Prefixes per ASN: 28.76
APNIC Region origin ASes announcing only one prefix: 548
APNIC Region transit ASes present in the Internet Routing Table: 347
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 346740576
Equivalent to 20 /8s, 170 /16s and 215 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 114/8, 115/8, 116/8,
117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8,
124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8,
218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 107734
Total ARIN prefixes after maximum aggregation: 59255
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 86711
Unique aggregates announced from the ARIN address blocks: 34324
ARIN Region origin ASes present in the Internet Routing Table: 11782
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4607
ARIN Region transit ASes present in the Internet Routing Table: 1044
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 358377728
Equivalent to 21 /8s, 92 /16s and 105 /24s
Percentage of available ARIN address space announced: 73.7
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, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 55022
Total RIPE prefixes after maximum aggregation: 33581
RIPE Deaggregation factor: 1.64
Prefixes being announced from the RIPE address blocks: 50234
Unique aggregates announced from the RIPE address blocks: 33586
RIPE Region origin ASes present in the Internet Routing Table: 11269
RIPE Prefixes per ASN: 4.46
RIPE Region origin ASes announcing only one prefix: 5885
RIPE Region transit ASes present in the Internet Routing Table: 1719
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 355521536
Equivalent to 21 /8s, 48 /16s and 212 /24s
Percentage of available RIPE address space announced: 81.5
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, 47104 - 48127
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 19851
Total LACNIC prefixes after maximum aggregation: 4968
LACNIC Deaggregation factor: 4.00
Prefixes being announced from the LACNIC address blocks: 18282
Unique aggregates announced from the LACNIC address blocks: 9819
LACNIC Region origin ASes present in the Internet Routing Table: 893
LACNIC Prefixes per ASN: 20.47
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 50867968
Equivalent to 3 /8s, 8 /16s and 47 /24s
Percentage of available LACNIC address space announced: 50.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3770
Total AfriNIC prefixes after maximum aggregation: 1213
AfriNIC Deaggregation factor: 3.11
Prefixes being announced from the AfriNIC address blocks: 4104
Unique aggregates announced from the AfriNIC address blocks: 1847
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.03
AfriNIC Region origin ASes announcing only one prefix: 78
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 11766528
Equivalent to 0 /8s, 179 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 35.1
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 1630 387 91 Videsh Sanchar Nigam Ltd. Aut
9583 1183 140 16 Sify Limited
9498 1166 550 61 BHARTI BT INTERNET LTD.
17488 1060 70 75 Hathway IP Over Cable Interne
4134 855 12615 319 CHINANET-BACKBONE
4766 850 6006 345 Korea Telecom (KIX)
18101 680 149 54 Reliance Infocom Ltd Internet
9829 597 450 12 BSNL National Internet Backbo
1221 543 1918 417 Telstra Pty Ltd
4808 515 829 129 CNCGROUP IP network: China169
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4323 1425 1014 376 Time Warner Telecom
2386 1398 642 864 AT&T Data Communications Serv
7018 1397 5976 995 AT&T WorldNet Services
11492 1212 146 33 Cable One
7011 1098 319 626 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1014 511 106 AppliedTheory Corporation
6197 987 598 508 BellSouth Network Solutions,
174 971 6835 802 Cogent Communications
22773 948 2394 62 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 407 1788 367 TDC Tele Danmark
9198 401 74 9 Kazakhtelecom Data Network Ad
8452 356 188 7 TEDATA
3301 338 1458 306 TeliaNet Sweden
3320 324 7044 267 Deutsche Telekom AG
8866 298 78 24 Bulgarian Telecommunication C
5462 292 666 26 Telewest Broadband
8551 282 269 37 Bezeq International
3215 277 2678 89 France Telecom Transpac
680 272 2047 262 DFN-IP service G-WiN
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1202 2433 223 UniNet S.A. de C.V.
11830 601 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
7303 455 222 60 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 416 85 46 ENTEL CHILE S.A.
11172 415 117 69 Servicios Alestra S.A de C.V
10620 390 99 69 TVCABLE BOGOTA
14117 384 25 15 Telefonica del Sur S.A.
20299 343 36 31 NEWCOM AMERICAS
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 464 61 27 LINKdotNET AS number
3741 289 853 223 The Internet Solution
20858 218 34 3 EgyNet
2018 179 190 86 Tertiary Education Network
5713 150 558 120 Telkom SA Ltd
6713 143 135 11 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
24835 89 48 7 RAYA Telecom - Egypt
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 2900 3021 117 bellsouth.net, inc.
23577 1642 34 701 Korea Telecom (ATM-MPLS)
4755 1630 387 91 Videsh Sanchar Nigam Ltd. Aut
4323 1425 1014 376 Time Warner Telecom
2386 1398 642 864 AT&T Data Communications Serv
7018 1397 5976 995 AT&T WorldNet Services
11492 1212 146 33 Cable One
8151 1202 2433 223 UniNet S.A. de C.V.
9583 1183 140 16 Sify Limited
9498 1166 550 61 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1630 1539 Videsh Sanchar Nigam Ltd. Aut
11492 1212 1179 Cable One
9583 1183 1167 Sify Limited
9498 1166 1105 BHARTI BT INTERNET LTD.
4323 1425 1049 Time Warner Telecom
18566 1044 1034 Covad Communications
17488 1060 985 Hathway IP Over Cable Interne
8151 1202 979 UniNet S.A. de C.V.
17676 1016 951 Softbank BB Corp.
23577 1642 941 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo!
12180 UNALLOCATED 4.79.248.0/24 1239 Sprint
12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing
12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing
14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo!
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies,
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/current/data-add-IANA
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 /11:42 /12:139
/13:280 /14:506 /15:1002 /16:9883 /17:4364 /18:7279
/19:15383 /20:17797 /21:17203 /22:21636 /23:22727 /24:134173
/25:780 /26:937 /27:497 /28:109 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1198 1212 Cable One
2386 1098 1398 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
9583 1018 1183 Sify Limited
7011 981 1098 Citizens Utilities
4755 976 1630 Videsh Sanchar Nigam Ltd. Aut
6478 934 935 AT&T Worldnet Services
6389 899 2900 bellsouth.net, inc.
17488 872 1060 Hathway IP Over Cable Interne
9498 841 1166 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:106 12:2027 13:1 15:20 16:3
17:5 18:13 20:35 24:1072 25:1 32:61
33:4 38:420 40:94 41:636 44:2 47:7
52:3 55:3 56:3 57:22 58:515 59:459
60:441 61:984 62:1126 63:1959 64:3413 65:2428
66:3632 67:1174 68:674 69:2194 70:599 71:128
72:1677 73:6 74:950 75:228 76:303 77:648
78:605 79:149 80:900 81:855 82:624 83:380
84:549 85:995 86:403 87:657 88:345 89:1287
90:11 91:1210 92:294 93:360 96:25 97:14
98:152 99:3 116:636 117:297 118:125 119:380
120:14 121:528 122:760 123:320 124:853 125:1122
128:322 129:198 130:129 131:405 132:67 133:9
134:179 135:32 136:223 137:112 138:149 139:62
140:485 141:96 142:398 143:284 144:352 145:50
146:358 147:151 148:506 149:182 150:132 151:181
152:142 153:133 154:10 155:269 156:173 157:267
158:168 159:221 160:253 161:111 162:208 163:194
164:520 165:448 166:304 167:319 168:614 169:128
170:422 171:28 172:2 189:164 190:1825 192:5769
193:4103 194:3257 195:2420 196:1050 198:3735 199:3227
200:5660 201:1450 202:7548 203:7809 204:4004 205:2085
206:2397 207:2743 208:3300 209:3428 210:2538 211:1044
212:1373 213:1640 214:449 215:51 216:4339 217:1221
218:347 219:406 220:1070 221:482 222:305
End of report
