[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Ago 12 16:07:08 BRT 2011
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
Routing Table Report 04:00 +10GMT Sat 13 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367521
Prefixes after maximum aggregation: 166524
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182354
Total ASes present in the Internet Routing Table: 38471
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31933
Origin ASes announcing only one prefix: 15342
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1079
Unregistered ASNs in the Routing Table: 608
Number of 32-bit ASNs allocated by the RIRs: 1645
Number of 32-bit ASNs visible in the Routing Table: 1319
Prefixes from 32-bit ASNs in the Routing Table: 3044
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2493117120
Equivalent to 148 /8s, 153 /16s and 242 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153387
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92175
Total APNIC prefixes after maximum aggregation: 30502
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 88686
Unique aggregates announced from the APNIC address blocks: 37759
APNIC Region origin ASes present in the Internet Routing Table: 4529
APNIC Prefixes per ASN: 19.58
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 623788832
Equivalent to 37 /8s, 46 /16s and 67 /24s
Percentage of available APNIC address space announced: 79.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 142332
Total ARIN prefixes after maximum aggregation: 73328
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114147
Unique aggregates announced from the ARIN address blocks: 47051
ARIN Region origin ASes present in the Internet Routing Table: 14570
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5592
ARIN Region transit ASes present in the Internet Routing Table: 1541
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803404032
Equivalent to 47 /8s, 226 /16s and 249 /24s
Percentage of available ARIN address space announced: 63.8
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, 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, 23/8, 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, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 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: 87382
Total RIPE prefixes after maximum aggregation: 49660
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80613
Unique aggregates announced from the RIPE address blocks: 53297
RIPE Region origin ASes present in the Internet Routing Table: 15880
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7911
RIPE Region transit ASes present in the Internet Routing Table: 2513
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 947
Number of RIPE addresses announced to Internet: 487087104
Equivalent to 29 /8s, 8 /16s and 92 /24s
Percentage of available RIPE address space announced: 78.5
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, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 34092
Total LACNIC prefixes after maximum aggregation: 7643
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33264
Unique aggregates announced from the LACNIC address blocks: 17324
LACNIC Region origin ASes present in the Internet Routing Table: 1499
LACNIC Prefixes per ASN: 22.19
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 286
Number of LACNIC addresses announced to Internet: 87493120
Equivalent to 5 /8s, 55 /16s and 10 /24s
Percentage of available LACNIC address space announced: 57.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8326
Total AfriNIC prefixes after maximum aggregation: 2031
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6466
Unique aggregates announced from the AfriNIC address blocks: 2050
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26906880
Equivalent to 1 /8s, 154 /16s and 145 /24s
Percentage of available AfriNIC address space announced: 40.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2485 11044 946 Korea Telecom (KIX)
17974 1802 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1569 301 85 TPG Internet Pty Ltd
4755 1535 635 170 TATA Communications formerly
7552 1408 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 BSNL National Internet Backbo
9583 1070 78 490 Sify Limited
4808 1065 2098 306 CNCGROUP IP network: China169
17488 990 187 123 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3589 3817 228 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1817 681 124 PaeTec Communications, Inc.
4323 1616 1086 401 Time Warner Telecom
7029 1612 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1364 7053 893 AT&T WorldNet Services
2386 1248 519 898 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 538 107 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
8866 454 133 26 Bulgarian Telecommunication C
12479 453 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 417 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 397 1855 346 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1574 290 165 TVCABLE BOGOTA
8151 1434 2755 355 UniNet S.A. de C.V.
28573 1265 996 67 NET Servicos de Comunicao S.A
7303 1069 578 177 Telecom Argentina Stet-France
6503 742 450 76 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 530 232 96 Empresa Nacional de Telecomun
27947 516 53 54 Telconet S.A
7738 515 986 31 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 806 147 43 LINKdotNET AS number
8452 653 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 193 28 64 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3589 3817 228 bellsouth.net, inc.
23456 3044 732 1637 32-bit ASN transition
4766 2485 11044 946 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1817 681 124 PaeTec Communications, Inc.
17974 1802 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1086 401 Time Warner Telecom
7029 1612 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1574 290 165 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1802 1771 PT TELEKOMUNIKASI INDONESIA
1785 1817 1693 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2485 1539 Korea Telecom (KIX)
7545 1569 1484 TPG Internet Pty Ltd
10620 1574 1409 TVCABLE BOGOTA
23456 3044 1407 32-bit ASN transition
7552 1408 1401 Vietel Corporation
7029 1612 1382 Windstream Communications Inc
4755 1535 1365 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.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 /8:20 /9:12 /10:27 /11:81 /12:233
/13:465 /14:800 /15:1414 /16:12057 /17:5905 /18:9924
/19:19543 /20:26516 /21:26492 /22:35349 /23:34180 /24:191159
/25:1096 /26:1298 /27:735 /28:206 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2220 3589 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1488 3044 32-bit ASN transition
10620 1469 1574 TVCABLE BOGOTA
7029 1308 1612 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1056 1158 Citizens Utilities
1785 1052 1817 PaeTec Communications, Inc.
22773 905 1409 Cox Communications, Inc.
30036 896 918 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:354 2:46 4:15 5:1 6:3 8:342
12:1960 13:1 14:508 15:15 16:3 17:5
20:10 23:19 24:1686 27:872 31:513 32:64
33:4 34:2 36:4 38:729 40:108 41:2486
42:43 44:3 46:1070 47:3 49:219 50:393
52:13 54:2 55:6 56:2 57:35 58:869
59:500 60:379 61:1186 62:1065 63:1932 64:4005
65:2300 66:3918 67:1914 68:1109 69:3085 70:779
71:373 72:1868 74:2432 75:329 76:342 77:863
78:708 79:470 80:1132 81:828 82:487 83:465
84:685 85:1076 86:523 87:836 88:335 89:1533
90:224 91:4035 92:526 93:1118 94:1332 95:867
96:418 97:266 98:919 99:37 101:79 103:188
106:79 107:31 108:73 109:1017 110:619 111:731
112:308 113:407 114:560 115:694 116:992 117:679
118:870 119:1184 120:315 121:689 122:1611 123:980
124:1372 125:1326 128:246 129:174 130:171 131:578
132:116 133:21 134:213 135:52 136:210 137:140
138:296 139:116 140:488 141:273 142:380 143:419
144:489 145:58 146:459 147:215 148:695 149:252
150:163 151:190 152:440 153:182 154:5 155:400
156:199 157:331 158:138 159:458 160:317 161:208
162:309 163:164 164:515 165:366 166:533 167:432
168:748 169:153 170:847 171:81 172:1 173:1645
174:623 175:393 176:163 177:209 178:1005 180:927
181:26 182:512 183:241 184:365 185:1 186:1363
187:737 188:908 189:926 190:5094 192:5915 193:4974
194:3510 195:3052 196:1207 197:121 198:3591 199:4026
200:5537 201:1481 202:8428 203:8479 204:4261 205:2313
206:2677 207:2791 208:4015 209:3413 210:2687 211:1459
212:2085 213:1758 214:776 215:70 216:4887 217:1616
218:555 219:354 220:1229 221:513 222:355 223:234
End of report
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