[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Jun 17 15:47:39 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 18 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 360387
Prefixes after maximum aggregation: 163564
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178868
Total ASes present in the Internet Routing Table: 37921
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31627
Origin ASes announcing only one prefix: 15197
Transit ASes present in the Internet Routing Table: 5136
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 818
Unregistered ASNs in the Routing Table: 441
Number of 32-bit ASNs allocated by the RIRs: 1463
Number of 32-bit ASNs visible in the Routing Table: 1158
Prefixes from 32-bit ASNs in the Routing Table: 2676
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 141
Number of addresses announced to Internet: 2488807488
Equivalent to 148 /8s, 88 /16s and 48 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150087
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89629
Total APNIC prefixes after maximum aggregation: 30149
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86121
Unique aggregates announced from the APNIC address blocks: 36875
APNIC Region origin ASes present in the Internet Routing Table: 4482
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 1246
APNIC Region transit ASes present in the Internet Routing Table: 706
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: 46
Number of APNIC addresses announced to Internet: 620285216
Equivalent to 36 /8s, 248 /16s and 205 /24s
Percentage of available APNIC address space announced: 78.7
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 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: 140967
Total ARIN prefixes after maximum aggregation: 72104
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112897
Unique aggregates announced from the ARIN address blocks: 46236
ARIN Region origin ASes present in the Internet Routing Table: 14446
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5520
ARIN Region transit ASes present in the Internet Routing Table: 1524
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818669312
Equivalent to 48 /8s, 203 /16s and 231 /24s
Percentage of available ARIN address space announced: 65.1
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, 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: 85734
Total RIPE prefixes after maximum aggregation: 48818
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79180
Unique aggregates announced from the RIPE address blocks: 52437
RIPE Region origin ASes present in the Internet Routing Table: 15722
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7850
RIPE Region transit ASes present in the Internet Routing Table: 2477
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: 855
Number of RIPE addresses announced to Internet: 477374720
Equivalent to 28 /8s, 116 /16s and 41 /24s
Percentage of available RIPE address space announced: 76.9
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: 33067
Total LACNIC prefixes after maximum aggregation: 7539
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32170
Unique aggregates announced from the LACNIC address blocks: 16905
LACNIC Region origin ASes present in the Internet Routing Table: 1468
LACNIC Prefixes per ASN: 21.91
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 241
Number of LACNIC addresses announced to Internet: 84924928
Equivalent to 5 /8s, 15 /16s and 218 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8091
Total AfriNIC prefixes after maximum aggregation: 1965
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6390
Unique aggregates announced from the AfriNIC address blocks: 1967
AfriNIC Region origin ASes present in the Internet Routing Table: 465
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24250368
Equivalent to 1 /8s, 114 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 36.1
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 2457 9500 924 Korea Telecom (KIX)
17974 1879 465 43 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 85 TPG Internet Pty Ltd
4755 1478 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1048 2090 300 CNCGROUP IP network: China169
9829 1042 879 56 BSNL National Internet Backbo
17488 950 190 101 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 3629 3819 250 bellsouth.net, inc.
18566 1913 365 237 Covad Communications
1785 1796 681 122 PaeTec Communications, Inc.
4323 1660 1081 397 Time Warner Telecom
6478 1634 296 275 AT&T Worldnet Services
20115 1522 1526 640 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1363 7054 889 AT&T WorldNet Services
22773 1338 2897 85 Cox Communications, Inc.
7029 1312 790 297 Alltel Information Services,
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 524 107 182 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 466 2078 401 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 434 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 398 1839 347 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 1522 278 155 TVCABLE BOGOTA
28573 1279 993 78 NET Servicos de Comunicao S.A
8151 1269 2729 363 UniNet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 741 354 73 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 VTR PUNTO NET S.A.
3816 532 231 95 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 499 53 52 Telconet 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 795 147 37 LINKdotNET AS number
8452 763 445 11 TEDATA
15475 526 74 8 Nile Online
36992 304 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 86 MTN Network Solutions
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 3629 3819 250 bellsouth.net, inc.
23456 2676 661 1448 32-bit ASN transition
4766 2457 9500 924 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications
17974 1879 465 43 PT TELEKOMUNIKASI INDONESIA
1785 1796 681 122 PaeTec Communications, Inc.
4323 1660 1081 397 Time Warner Telecom
6478 1634 296 275 AT&T Worldnet Services
7545 1538 301 85 TPG Internet Pty Ltd
10620 1522 278 155 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 1879 1836 PT TELEKOMUNIKASI INDONESIA
18566 1913 1676 Covad Communications
1785 1796 1674 PaeTec Communications, Inc.
4766 2457 1533 Korea Telecom (KIX)
7545 1538 1453 TPG Internet Pty Ltd
10620 1522 1367 TVCABLE BOGOTA
6478 1634 1359 AT&T Worldnet Services
4755 1478 1310 TATA Communications formerly
4323 1660 1263 Time Warner Telecom
22773 1338 1253 Cox Communications, Inc.
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
27.0.128.0/17 7514 Media Exchange, Inc.
31.132.8.0/21 15478 White Market Media SRL
31.132.32.0/20 15478 White Market Media SRL
41.190.32.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:462 /14:801 /15:1394 /16:11951 /17:5841 /18:9796
/19:19380 /20:26032 /21:26006 /22:34385 /23:33300 /24:187515
/25:1093 /26:1270 /27:729 /28:41 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2232 3629 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1597 1634 AT&T Worldnet Services
10620 1412 1522 TVCABLE BOGOTA
23456 1328 2676 32-bit ASN transition
11492 1090 1136 Cable One
7011 1059 1159 Citizens Utilities
7029 1059 1312 Alltel Information Services,
1785 1050 1796 PaeTec Communications, Inc.
22773 856 1338 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:286 2:43 4:16 5:1 6:3 8:335
12:1973 13:1 14:464 15:15 16:3 17:8
20:10 23:11 24:1653 27:790 31:444 32:64
33:4 34:2 37:1 38:734 40:103 41:2508
42:2 44:3 46:976 47:3 49:188 50:409
52:13 54:2 55:4 56:2 57:32 58:845
59:472 60:387 61:1181 62:1050 63:1935 64:3944
65:2271 66:3860 67:1889 68:1089 69:3026 70:723
71:376 72:1886 74:2377 75:319 76:339 77:881
78:707 79:460 80:1113 81:846 82:493 83:461
84:667 85:1082 86:581 87:757 88:333 89:1530
90:208 91:3855 92:530 93:1049 94:1294 95:838
96:445 97:249 98:879 99:36 101:70 103:79
106:7 107:14 108:71 109:1006 110:606 111:709
112:303 113:399 114:540 115:668 116:962 117:677
118:826 119:1145 120:312 121:669 122:1628 123:941
124:1267 125:1235 128:247 129:174 130:165 131:578
132:111 133:21 134:214 135:48 136:216 137:138
138:300 139:113 140:480 141:238 142:403 143:413
144:489 145:54 146:451 147:211 148:610 149:247
150:171 151:190 152:332 153:180 154:4 155:398
156:195 157:352 158:138 159:389 160:319 161:208
162:313 163:162 164:500 165:352 166:532 167:423
168:740 169:156 170:838 171:77 172:1 173:1621
174:602 175:362 176:135 177:160 178:1000 180:892
181:19 182:476 183:220 184:302 185:1 186:1241
187:731 188:857 189:907 190:4898 192:5856 193:4956
194:3492 195:3032 196:1221 197:24 198:3596 199:3945
200:5542 201:1501 202:8319 203:8407 204:4188 205:2348
206:2686 207:2815 208:3927 209:3463 210:2689 211:1424
212:2006 213:1726 214:773 215:69 216:4933 217:1643
218:545 219:365 220:1202 221:491 222:354 223:159
End of report
Más información sobre la lista de distribución LACNOG