[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Ago 19 16:08:05 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 20 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 368024
Prefixes after maximum aggregation: 166632
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182554
Total ASes present in the Internet Routing Table: 38538
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31989
Origin ASes announcing only one prefix: 15372
Transit ASes present in the Internet Routing Table: 5224
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1107
Unregistered ASNs in the Routing Table: 630
Number of 32-bit ASNs allocated by the RIRs: 1659
Number of 32-bit ASNs visible in the Routing Table: 1325
Prefixes from 32-bit ASNs in the Routing Table: 3080
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2469201344
Equivalent to 147 /8s, 45 /16s and 5 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
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: 153512
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92411
Total APNIC prefixes after maximum aggregation: 30460
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88936
Unique aggregates announced from the APNIC address blocks: 37698
APNIC Region origin ASes present in the Internet Routing Table: 4537
APNIC Prefixes per ASN: 19.60
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 716
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: 73
Number of APNIC addresses announced to Internet: 624234272
Equivalent to 37 /8s, 53 /16s and 15 /24s
Percentage of available APNIC address space announced: 79.2
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: 142440
Total ARIN prefixes after maximum aggregation: 73359
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114314
Unique aggregates announced from the ARIN address blocks: 47154
ARIN Region origin ASes present in the Internet Routing Table: 14593
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5613
ARIN Region transit ASes present in the Internet Routing Table: 1545
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: 803789568
Equivalent to 47 /8s, 232 /16s and 219 /24s
Percentage of available ARIN address space announced: 63.9
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: 87511
Total RIPE prefixes after maximum aggregation: 49738
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80704
Unique aggregates announced from the RIPE address blocks: 53464
RIPE Region origin ASes present in the Internet Routing Table: 15904
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7918
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 949
Number of RIPE addresses announced to Internet: 487724544
Equivalent to 29 /8s, 18 /16s and 22 /24s
Percentage of available RIPE address space announced: 78.6
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: 34083
Total LACNIC prefixes after maximum aggregation: 7645
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33332
Unique aggregates announced from the LACNIC address blocks: 17319
LACNIC Region origin ASes present in the Internet Routing Table: 1503
LACNIC Prefixes per ASN: 22.18
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 287
Number of LACNIC addresses announced to Internet: 87644928
Equivalent to 5 /8s, 57 /16s and 91 /24s
Percentage of available LACNIC address space announced: 58.0
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: 2041
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6423
Unique aggregates announced from the AfriNIC address blocks: 2088
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 5.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26893056
Equivalent to 1 /8s, 154 /16s and 91 /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 2498 11046 950 Korea Telecom (KIX)
17974 1821 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1576 301 83 TPG Internet Pty Ltd
4755 1534 635 169 TATA Communications formerly
7552 1412 1064 7 Vietel Corporation
24560 1199 336 187 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
4808 1067 2098 306 CNCGROUP IP network: China169
17488 1002 188 139 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 3585 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1819 680 123 PaeTec Communications, Inc.
4323 1618 1086 401 Time Warner Telecom
20115 1586 1537 630 Charter Communications
7029 1576 991 229 Windstream Communications Inc
22773 1434 2903 97 Cox Communications, Inc.
19262 1406 4778 396 Verizon Global Networks
7018 1351 7050 882 AT&T WorldNet Services
2386 1230 516 892 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 541 107 183 BILISIM TELEKOM
6830 512 1788 317 UPC Distribution Services
20940 475 135 368 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 398 1855 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 1591 294 163 TVCABLE BOGOTA
8151 1401 2770 354 UniNet S.A. de C.V.
28573 1266 996 67 NET Servicos de Comunicao S.A
7303 1064 578 176 Telecom Argentina Stet-France
6503 743 450 75 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 96 Empresa Nacional de Telecomun
27947 518 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 808 145 59 LINKdotNET AS number
8452 639 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 194 28 61 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 3585 3817 227 bellsouth.net, inc.
23456 3080 733 1651 32-bit ASN transition
4766 2498 11046 950 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
17974 1821 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1819 680 123 PaeTec Communications, Inc.
4323 1618 1086 401 Time Warner Telecom
10620 1591 294 163 TVCABLE BOGOTA
20115 1586 1537 630 Charter Communications
7029 1576 991 229 Windstream Communications Inc
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 1821 1790 PT TELEKOMUNIKASI INDONESIA
1785 1819 1696 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2498 1548 Korea Telecom (KIX)
7545 1576 1493 TPG Internet Pty Ltd
23456 3080 1429 32-bit ASN transition
10620 1591 1428 TVCABLE BOGOTA
7552 1412 1405 Vietel Corporation
4755 1534 1365 TATA Communications formerly
7029 1576 1347 Windstream 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
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 /8:19 /9:12 /10:27 /11:81 /12:233
/13:460 /14:796 /15:1418 /16:11935 /17:5924 /18:9961
/19:19532 /20:26588 /21:26596 /22:35566 /23:34251 /24:191318
/25:1098 /26:1303 /27:739 /28:158 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2217 3585 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1507 3080 32-bit ASN transition
10620 1486 1591 TVCABLE BOGOTA
7029 1277 1576 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1058 1161 Citizens Utilities
1785 1052 1819 PaeTec Communications, Inc.
22773 930 1434 Cox Communications, Inc.
30036 911 935 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:358 2:46 4:15 5:1 6:3 8:343
12:1954 13:1 14:505 15:15 16:3 17:5
20:10 23:27 24:1683 27:875 31:517 32:64
33:4 34:2 36:4 38:733 40:107 41:2458
42:45 44:3 46:1059 47:3 49:219 50:409
52:13 54:2 55:9 56:2 57:35 58:864
59:499 60:376 61:1179 62:1084 63:1928 64:3996
65:2300 66:3930 67:1916 68:1112 69:3085 70:779
71:372 72:1845 74:2437 75:329 76:339 77:861
78:710 79:479 80:1129 81:831 82:492 83:476
84:686 85:1078 86:499 87:839 88:335 89:1537
90:224 91:4037 92:526 93:1133 94:1339 95:872
96:419 97:267 98:924 99:37 101:78 103:212
106:69 107:32 108:74 109:1009 110:627 111:731
112:305 113:412 114:558 115:696 116:997 117:675
118:877 119:1225 120:314 121:689 122:1615 123:984
124:1317 125:1319 128:246 129:176 130:169 131:580
132:116 133:21 134:213 135:51 136:216 137:137
138:296 139:116 140:488 141:277 142:382 143:439
144:484 145:58 146:462 147:216 148:645 149:252
150:201 151:190 152:441 153:185 154:5 155:401
156:200 157:330 158:133 159:458 160:319 161:207
162:328 163:163 164:516 165:367 166:533 167:433
168:747 169:153 170:844 171:81 172:1 173:1652
174:613 175:393 176:153 177:229 178:957 180:936
181:26 182:528 183:242 184:364 185:1 186:1365
187:743 188:933 189:929 190:5131 192:5921 193:4984
194:3511 195:3038 196:1230 197:126 198:3591 199:4039
200:5517 201:1490 202:8410 203:8483 204:4248 205:2339
206:2672 207:2808 208:3998 209:3416 210:2706 211:1461
212:2085 213:1766 214:782 215:70 216:4865 217:1607
218:553 219:354 220:1220 221:515 222:354 223:241
End of report
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