Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jan 8 18:43:43 UTC 2010
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 09 Jan, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 307662
Prefixes after maximum aggregation: 143300
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 151565
Total ASes present in the Internet Routing Table: 33037
Prefixes per ASN: 9.31
Origin-only ASes present in the Internet Routing Table: 28698
Origin ASes announcing only one prefix: 14013
Transit ASes present in the Internet Routing Table: 4339
Transit-only ASes present in the Internet Routing Table: 103
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN ( 9503) 20
Prefixes from unregistered ASNs in the Routing Table: 731
Unregistered ASNs in the Routing Table: 133
Number of 32-bit ASNs allocated by the RIRs: 385
Prefixes from 32-bit ASNs in the Routing Table: 335
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 186
Number of addresses announced to Internet: 2169545344
Equivalent to 129 /8s, 80 /16s and 162 /24s
Percentage of available address space announced: 58.5
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.7
Total number of prefixes smaller than registry allocations: 148143
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 73972
Total APNIC prefixes after maximum aggregation: 25793
APNIC Deaggregation factor: 2.87
Prefixes being announced from the APNIC address blocks: 70662
Unique aggregates announced from the APNIC address blocks: 31402
APNIC Region origin ASes present in the Internet Routing Table: 3913
APNIC Prefixes per ASN: 18.06
APNIC Region origin ASes announcing only one prefix: 1071
APNIC Region transit ASes present in the Internet Routing Table: 612
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 486803488
Equivalent to 29 /8s, 4 /16s and 8 /24s
Percentage of available APNIC address space announced: 80.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 43/8, 58/8, 59/8, 60/8, 61/8, 110/8, 111/8,
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, 133/8, 175/8, 180/8, 182/8, 183/8, 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: 129255
Total ARIN prefixes after maximum aggregation: 67559
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 103380
Unique aggregates announced from the ARIN address blocks: 39158
ARIN Region origin ASes present in the Internet Routing Table: 13428
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5201
ARIN Region transit ASes present in the Internet Routing Table: 1323
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 735019296
Equivalent to 43 /8s, 207 /16s and 129 /24s
Percentage of available ARIN address space announced: 64.4
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
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8,
56/8, 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, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 70912
Total RIPE prefixes after maximum aggregation: 41459
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 64240
Unique aggregates announced from the RIPE address blocks: 42763
RIPE Region origin ASes present in the Internet Routing Table: 13948
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 7257
RIPE Region transit ASes present in the Internet Routing Table: 2088
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 409561344
Equivalent to 24 /8s, 105 /16s and 105 /24s
Percentage of available RIPE address space announced: 76.3
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, 47104-52223, 196608-197631
RIPE Address Blocks 2/8, 25/8, 46/8, 51/8, 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, 109/8, 178/8, 193/8, 194/8,
195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 26966
Total LACNIC prefixes after maximum aggregation: 6530
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 25329
Unique aggregates announced from the LACNIC address blocks: 13780
LACNIC Region origin ASes present in the Internet Routing Table: 1225
LACNIC Prefixes per ASN: 20.68
LACNIC Region origin ASes announcing only one prefix: 391
LACNIC Region transit ASes present in the Internet Routing Table: 204
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 69899712
Equivalent to 4 /8s, 42 /16s and 149 /24s
Percentage of available LACNIC address space announced: 69.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 5994
Total AfriNIC prefixes after maximum aggregation: 1610
AfriNIC Deaggregation factor: 3.72
Prefixes being announced from the AfriNIC address blocks: 4375
Unique aggregates announced from the AfriNIC address blocks: 1592
AfriNIC Region origin ASes present in the Internet Routing Table: 337
AfriNIC Prefixes per ASN: 12.98
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 69
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 14742016
Equivalent to 0 /8s, 224 /16s and 242 /24s
Percentage of available AfriNIC address space announced: 43.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1831 7509 473 Korea Telecom (KIX)
17488 1464 144 140 Hathway IP Over Cable Interne
4755 1281 289 144 TATA Communications formerly
18101 1033 220 38 Reliance Infocom Ltd Internet
4134 1018 19477 400 CHINANET-BACKBONE
9583 998 74 503 Sify Limited
7545 920 198 98 TPG Internet Pty Ltd
17974 844 271 55 PT TELEKOMUNIKASI INDONESIA
4808 836 1583 213 CNCGROUP IP network: China169
9829 835 679 22 BSNL National Internet Backbo
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 4165 3891 301 bellsouth.net, inc.
4323 3783 1068 400 Time Warner Telecom
1785 1796 699 134 PaeTec Communications, Inc.
7018 1589 5791 1028 AT&T WorldNet Services
20115 1537 1487 666 Charter Communications
2386 1294 617 930 AT&T Data Communications Serv
3356 1200 10929 423 Level 3 Communications, LLC
11492 1154 222 14 Cable One
22773 1124 2600 66 Cox Communications, Inc.
6478 1092 241 298 AT&T Worldnet Services
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
30890 516 98 206 Evolva Telecom
35805 466 40 5 United Telecom of Georgia
3292 448 1903 393 TDC Tele Danmark
9198 426 202 13 Kazakhtelecom Data Network Ad
702 419 1837 337 UUNET - Commercial IP service
8551 396 353 37 Bezeq International
8866 374 110 23 Bulgarian Telecommunication C
3320 361 7068 307 Deutsche Telekom AG
3301 352 1412 307 TeliaNet Sweden
3215 350 3168 107 France Telecom Transpac
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 1576 2899 232 UniNet S.A. de C.V.
10620 1004 224 130 TVCABLE BOGOTA
28573 832 674 85 NET Servicos de Comunicao S.A
7303 668 352 98 Telecom Argentina Stet-France
22047 546 302 14 VTR PUNTO NET S.A.
11830 472 308 59 Instituto Costarricense de El
6503 446 163 185 AVANTEL, S.A.
11172 444 99 69 Servicios Alestra S.A de C.V
14117 436 29 11 Telefonica del Sur S.A.
3816 431 193 69 Empresa Nacional de Telecomun
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
8452 1017 444 8 TEDATA
24863 719 143 53 LINKdotNET AS number
3741 273 857 233 The Internet Solution
2018 178 196 100 Tertiary Education Network
6713 177 167 12 Itissalat Al-MAGHRIB
29571 161 19 9 Ci Telecom Autonomous system
29975 134 506 15 Vodacom
33776 123 7 11 Starcomms Nigeria Limited
5536 121 8 18 Internet Egypt Network
5713 114 505 68 Telkom SA Ltd
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 4165 3891 301 bellsouth.net, inc.
4323 3783 1068 400 Time Warner Telecom
4766 1831 7509 473 Korea Telecom (KIX)
1785 1796 699 134 PaeTec Communications, Inc.
7018 1589 5791 1028 AT&T WorldNet Services
8151 1576 2899 232 UniNet S.A. de C.V.
20115 1537 1487 666 Charter Communications
17488 1464 144 140 Hathway IP Over Cable Interne
2386 1294 617 930 AT&T Data Communications Serv
4755 1281 289 144 TATA Communications formerly
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3783 3383 Time Warner Telecom
1785 1796 1662 PaeTec Communications, Inc.
4766 1831 1358 Korea Telecom (KIX)
8151 1576 1344 UniNet S.A. de C.V.
17488 1464 1324 Hathway IP Over Cable Interne
11492 1154 1140 Cable One
4755 1281 1137 TATA Communications formerly
22773 1124 1058 Cox Communications, Inc.
18566 1059 1049 Covad Communications
8452 1017 1009 TEDATA
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 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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.78.60.0/22 6762 Telecom Italia international
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
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 /8:21 /9:10 /10:25 /11:65 /12:181
/13:382 /14:654 /15:1233 /16:10850 /17:5053 /18:8622
/19:17725 /20:21661 /21:21549 /22:27892 /23:28054 /24:160791
/25:915 /26:1147 /27:584 /28:221 /29:11 /30:8
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2723 4165 bellsouth.net, inc.
4323 2369 3783 Time Warner Telecom
4766 1476 1831 Korea Telecom (KIX)
1785 1263 1796 PaeTec Communications, Inc.
17488 1230 1464 Hathway IP Over Cable Interne
11492 1074 1154 Cable One
18566 1040 1059 Covad Communications
7018 960 1589 AT&T WorldNet Services
8452 913 1017 TEDATA
18101 913 1033 Reliance Infocom Ltd Internet
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:13 8:242 12:2007 13:9 15:22
16:3 17:8 20:38 24:1301 32:49 38:635
40:99 41:1881 44:3 46:1 47:29 52:6
55:2 56:2 57:23 58:640 59:596 60:446
61:968 62:956 63:2005 64:3774 65:2358 66:4100
67:1841 68:1047 69:2832 70:688 71:231 72:1878
73:3 74:2075 75:225 76:359 77:871 78:604
79:406 80:961 81:803 82:469 83:440 84:521
85:1015 86:376 87:692 88:433 89:1561 90:65
91:2674 92:434 93:1151 94:1293 95:799 96:194
97:290 98:488 99:23 109:206 110:263 111:413
112:168 113:216 114:304 115:404 116:1126 117:596
118:380 119:812 120:141 121:684 122:1385 123:830
124:1029 125:1305 128:198 129:203 130:134 131:461
132:84 133:16 134:193 135:41 136:228 137:175
138:236 139:81 140:462 141:121 142:377 143:349
144:393 145:51 146:390 147:175 148:565 149:196
150:151 151:172 152:225 153:162 154:2 155:270
156:178 157:329 158:98 159:355 160:304 161:175
162:271 163:189 164:309 165:472 166:493 167:387
168:758 169:158 170:568 171:42 172:1 173:425
174:519 175:20 180:273 183:200 184:3 186:258
187:211 188:1138 189:615 190:3423 192:5722 193:4390
194:3352 195:2786 196:1192 198:3550 199:3390 200:5256
201:1450 202:8076 203:8300 204:3981 205:2167 206:2401
207:3042 208:3924 209:3394 210:2518 211:1170 212:1657
213:1650 214:248 215:58 216:4425 217:1390 218:481
219:416 220:1137 221:461 222:303
End of report
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