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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 29 May, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 256939
Prefixes after maximum aggregation: 127524
Deaggregation factor: 2.01
Unique aggregates announced to Internet: 124804
Total ASes present in the Internet Routing Table: 28309
Prefixes per ASN: 9.08
Origin-only ASes present in the Internet Routing Table: 24689
Origin ASes announcing only one prefix: 11884
Transit ASes present in the Internet Routing Table: 3620
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 18
Max AS path prepend of ASN (39375) 13
Prefixes from unregistered ASNs in the Routing Table: 635
Unregistered ASNs in the Routing Table: 238
Number of 32-bit ASNs allocated by the RIRs: 48
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: 791
Number of addresses announced to Internet: 1871269056
Equivalent to 111 /8s, 137 /16s and 76 /24s
Percentage of available address space announced: 50.5
Percentage of allocated address space announced: 61.3
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.0
Total number of prefixes smaller than registry allocations: 123990
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 58866
Total APNIC prefixes after maximum aggregation: 21648
APNIC Deaggregation factor: 2.72
Prefixes being announced from the APNIC address blocks: 55883
Unique aggregates announced from the APNIC address blocks: 23896
APNIC Region origin ASes present in the Internet Routing Table: 3247
APNIC Prefixes per ASN: 17.21
APNIC Region origin ASes announcing only one prefix: 848
APNIC Region transit ASes present in the Internet Routing Table: 503
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 349763808
Equivalent to 20 /8s, 216 /16s and 248 /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, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 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: 118084
Total ARIN prefixes after maximum aggregation: 65155
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 87635
Unique aggregates announced from the ARIN address blocks: 34374
ARIN Region origin ASes present in the Internet Routing Table: 12175
ARIN Prefixes per ASN: 7.20
ARIN Region origin ASes announcing only one prefix: 4693
ARIN Region transit ASes present in the Internet Routing Table: 1132
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 357603840
Equivalent to 21 /8s, 80 /16s and 154 /24s
Percentage of available ARIN address space announced: 73.5
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: 55314
Total RIPE prefixes after maximum aggregation: 33842
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 50492
Unique aggregates announced from the RIPE address blocks: 33940
RIPE Region origin ASes present in the Internet Routing Table: 11384
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5953
RIPE Region transit ASes present in the Internet Routing Table: 1721
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 358508160
Equivalent to 21 /8s, 94 /16s and 102 /24s
Percentage of available RIPE address space announced: 82.2
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, 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: 20191
Total LACNIC prefixes after maximum aggregation: 5142
LACNIC Deaggregation factor: 3.93
Prefixes being announced from the LACNIC address blocks: 18494
Unique aggregates announced from the LACNIC address blocks: 10311
LACNIC Region origin ASes present in the Internet Routing Table: 951
LACNIC Prefixes per ASN: 19.45
LACNIC Region origin ASes announcing only one prefix: 313
LACNIC Region transit ASes present in the Internet Routing Table: 157
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 51723648
Equivalent to 3 /8s, 21 /16s and 61 /24s
Percentage of available LACNIC address space announced: 51.4
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: 3851
Total AfriNIC prefixes after maximum aggregation: 1208
AfriNIC Deaggregation factor: 3.19
Prefixes being announced from the AfriNIC address blocks: 4153
Unique aggregates announced from the AfriNIC address blocks: 1846
AfriNIC Region origin ASes present in the Internet Routing Table: 243
AfriNIC Prefixes per ASN: 17.09
AfriNIC Region origin ASes announcing only one prefix: 77
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12290816
Equivalent to 0 /8s, 187 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 36.6
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 1642 387 91 Videsh Sanchar Nigam Ltd. Aut
9498 1167 550 60 BHARTI BT INTERNET LTD.
9583 1150 140 15 Sify Limited
17488 1073 71 75 Hathway IP Over Cable Interne
4766 849 6006 343 Korea Telecom (KIX)
4134 820 12692 320 CHINANET-BACKBONE
23577 820 34 701 Korea Telecom (ATM-MPLS)
18101 686 150 53 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 547 1919 420 Telstra Pty Ltd
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
6389 1993 3087 178 bellsouth.net, inc.
4323 1467 1045 379 Time Warner Telecom
2386 1436 659 872 AT&T Data Communications Serv
7018 1378 5830 983 AT&T WorldNet Services
11492 1224 148 12 Cable One
7011 1092 302 617 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1021 510 105 AppliedTheory Corporation
6197 1005 597 509 BellSouth Network Solutions,
174 971 6837 806 Cogent Communications
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 408 1772 368 TDC Tele Danmark
8452 356 188 7 TEDATA
3301 339 1460 307 TeliaNet Sweden
3320 318 7044 267 Deutsche Telekom AG
8866 297 77 21 Bulgarian Telecommunication C
5462 291 666 26 Telewest Broadband
3215 284 2702 93 France Telecom Transpac
8551 282 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
9155 265 46 11 QualityNet AS number
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 1233 2464 227 UniNet S.A. de C.V.
11830 602 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
7303 464 227 69 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 414 85 46 ENTEL CHILE S.A.
11172 410 118 68 Servicios Alestra S.A de C.V
10620 390 99 69 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
20299 338 23 89 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 472 61 28 LINKdotNET AS number
3741 286 853 223 The Internet Solution
20858 224 34 3 EgyNet
2018 182 173 82 Tertiary Education Network
5713 174 575 108 Telkom SA Ltd
6713 145 136 12 Itissalat Al-MAGHRIB
5536 121 8 16 Internet Egypt Network
33783 107 8 11 EEPAD TISP TELECOM & INTERNET
29571 100 13 8 Ci Telecom Autonomous system
33776 100 6 3 Starcomms Nigeria Limited
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 1993 3087 178 bellsouth.net, inc.
4755 1642 387 91 Videsh Sanchar Nigam Ltd. Aut
4323 1467 1045 379 Time Warner Telecom
2386 1436 659 872 AT&T Data Communications Serv
7018 1378 5830 983 AT&T WorldNet Services
8151 1233 2464 227 UniNet S.A. de C.V.
11492 1224 148 12 Cable One
9498 1167 550 60 BHARTI BT INTERNET LTD.
9583 1150 140 15 Sify Limited
7011 1092 302 617 Citizens Utilities
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1642 1551 Videsh Sanchar Nigam Ltd. Aut
11492 1224 1212 Cable One
9583 1150 1135 Sify Limited
9498 1167 1107 BHARTI BT INTERNET LTD.
4323 1467 1088 Time Warner Telecom
18566 1044 1034 Covad Communications
8151 1233 1006 UniNet S.A. de C.V.
17488 1073 998 Hathway IP Over Cable Interne
1785 1021 916 AppliedTheory Corporation
22773 945 883 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
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 /8:19 /9:9 /10:16 /11:42 /12:141
/13:279 /14:510 /15:1012 /16:9921 /17:4373 /18:7280
/19:15509 /20:17911 /21:17439 /22:22112 /23:22859 /24:135210
/25:785 /26:920 /27:491 /28:82 /29:9 /30:1
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1229 1993 bellsouth.net, inc.
11492 1206 1224 Cable One
2386 1135 1436 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
4755 988 1642 Videsh Sanchar Nigam Ltd. Aut
9583 988 1150 Sify Limited
7011 976 1092 Citizens Utilities
6478 947 948 AT&T Worldnet Services
17488 886 1073 Hathway IP Over Cable Interne
9498 845 1167 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 8:108 12:2054 13:1 15:20 16:3
17:5 18:13 20:35 24:1076 25:1 32:61
33:3 38:422 40:93 41:649 43:1 44:2
47:12 52:3 55:3 56:3 57:23 58:513
59:466 60:443 61:994 62:1110 63:1944 64:3337
65:2412 66:3648 67:1206 68:682 69:2249 70:630
71:126 72:1764 73:5 74:978 75:216 76:313
77:663 78:616 79:170 80:901 81:839 82:592
83:393 84:568 85:1023 86:420 87:689 88:324
89:1207 90:11 91:1251 92:185 93:501 96:32
97:20 98:176 99:3 114:17 116:647 117:325
118:140 119:429 120:44 121:534 122:773 123:352
124:849 125:1137 128:325 129:200 130:131 131:405
132:66 133:9 134:178 135:33 136:220 137:89
138:151 139:69 140:484 141:99 142:400 143:310
144:359 145:51 146:365 147:153 148:505 149:183
150:130 151:196 152:141 153:135 154:10 155:273
156:174 157:271 158:167 159:222 160:257 161:114
162:233 163:186 164:525 165:448 166:315 167:322
168:607 169:131 170:428 171:29 172:10 189:174
190:2013 192:5794 193:4100 194:3208 195:2445 196:1077
198:3742 199:3260 200:5631 201:1424 202:7618 203:7875
204:3994 205:2071 206:2403 207:2765 208:3351 209:3431
210:2521 211:1025 212:1389 213:1649 214:470 215:49
216:4352 217:1187 218:347 219:415 220:1079 221:467
222:308
End of report
