[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Sep 10 05:11:37 EST 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 at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 10 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370301
Prefixes after maximum aggregation: 167415
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183735
Total ASes present in the Internet Routing Table: 38737
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 32130
Origin ASes announcing only one prefix: 15446
Transit ASes present in the Internet Routing Table: 5210
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1208
Unregistered ASNs in the Routing Table: 697
Number of 32-bit ASNs allocated by the RIRs: 1711
Number of 32-bit ASNs visible in the Routing Table: 1397
Prefixes from 32-bit ASNs in the Routing Table: 3204
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2475335424
Equivalent to 147 /8s, 138 /16s and 159 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 66.8
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: 154300
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93207
Total APNIC prefixes after maximum aggregation: 30608
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89751
Unique aggregates announced from the APNIC address blocks: 38014
APNIC Region origin ASes present in the Internet Routing Table: 4545
APNIC Prefixes per ASN: 19.75
APNIC Region origin ASes announcing only one prefix: 1250
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: 83
Number of APNIC addresses announced to Internet: 626012512
Equivalent to 37 /8s, 80 /16s and 49 /24s
Percentage of available APNIC address space announced: 79.4
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: 143092
Total ARIN prefixes after maximum aggregation: 73464
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114937
Unique aggregates announced from the ARIN address blocks: 47325
ARIN Region origin ASes present in the Internet Routing Table: 14645
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5639
ARIN Region transit ASes present in the Internet Routing Table: 1554
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804788864
Equivalent to 47 /8s, 248 /16s and 26 /24s
Percentage of available ARIN address space announced: 64.0
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: 87865
Total RIPE prefixes after maximum aggregation: 49993
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80959
Unique aggregates announced from the RIPE address blocks: 53843
RIPE Region origin ASes present in the Internet Routing Table: 15959
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7952
RIPE Region transit ASes present in the Internet Routing Table: 2496
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: 993
Number of RIPE addresses announced to Internet: 488762880
Equivalent to 29 /8s, 33 /16s and 238 /24s
Percentage of available RIPE address space announced: 78.7
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: 34454
Total LACNIC prefixes after maximum aggregation: 7761
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33754
Unique aggregates announced from the LACNIC address blocks: 17669
LACNIC Region origin ASes present in the Internet Routing Table: 1522
LACNIC Prefixes per ASN: 22.18
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 305
Number of LACNIC addresses announced to Internet: 88542336
Equivalent to 5 /8s, 71 /16s and 12 /24s
Percentage of available LACNIC address space announced: 58.6
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: 8314
Total AfriNIC prefixes after maximum aggregation: 2024
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6408
Unique aggregates announced from the AfriNIC address blocks: 1991
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.7
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: 27297024
Equivalent to 1 /8s, 160 /16s and 133 /24s
Percentage of available AfriNIC address space announced: 40.7
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 2508 11047 955 Korea Telecom (KIX)
17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1581 301 83 TPG Internet Pty Ltd
4755 1550 635 170 TATA Communications formerly
24560 1176 336 192 Bharti Airtel Ltd., Telemedia
9829 1152 989 28 BSNL National Internet Backbo
9583 1079 80 503 Sify Limited
4808 1077 2093 308 CNCGROUP IP network: China169
7552 1050 1062 11 Vietel Corporation
17488 982 192 158 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 3564 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1626 1085 395 Time Warner Telecom
20115 1591 1540 634 Charter Communications
7029 1483 995 231 Windstream Communications Inc
22773 1450 2906 99 Cox Communications, Inc.
19262 1394 4724 399 Verizon Global Networks
7018 1333 7050 874 AT&T WorldNet Services
30036 1327 244 687 Mediacom Communications Corp
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 544 107 178 BILISIM TELEKOM
6830 526 1811 322 UPC Distribution Services
20940 500 154 388 Akamai Technologies European
3292 471 2079 405 TDC Tele Danmark
12479 468 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 406 352 13 Corbina telecom
8551 404 354 44 Bezeq International
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 1661 305 161 TVCABLE BOGOTA
8151 1409 2802 354 UniNet S.A. de C.V.
28573 1302 1003 71 NET Servicos de Comunicao S.A
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 582 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 565 55 82 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
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 812 147 43 LINKdotNET AS number
8452 596 440 15 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 193 28 62 Vodacom Internet Company
29571 191 17 11 Ci Telecom Autonomous system
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 3564 3817 226 bellsouth.net, inc.
23456 3204 762 1739 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1661 305 161 TVCABLE BOGOTA
4323 1626 1085 395 Time Warner Telecom
20115 1591 1540 634 Charter Communications
7545 1581 301 83 TPG Internet Pty Ltd
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 1985 1954 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1553 Korea Telecom (KIX)
10620 1661 1500 TVCABLE BOGOTA
7545 1581 1498 TPG Internet Pty Ltd
23456 3204 1465 32-bit ASN transition
4755 1550 1380 TATA Communications formerly
22773 1450 1351 Cox Communications, Inc.
7029 1483 1252 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /12:234
/13:463 /14:798 /15:1411 /16:11956 /17:5953 /18:9998
/19:19711 /20:26697 /21:26880 /22:35996 /23:34665 /24:192096
/25:1106 /26:1287 /27:739 /28:163 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2201 3564 bellsouth.net, inc.
18566 1868 1912 Covad Communications
10620 1556 1661 TVCABLE BOGOTA
23456 1549 3204 32-bit ASN transition
30036 1290 1327 Mediacom Communications Corp
7029 1211 1483 Windstream Communications Inc
11492 1110 1156 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 940 1450 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:365 2:50 4:15 5:1 6:3 8:349
12:1949 13:1 14:523 15:13 16:3 17:5
20:10 23:31 24:1669 27:919 31:516 32:64
33:3 34:2 36:4 38:737 40:107 41:2430
42:40 44:3 46:980 47:3 49:236 50:412
52:13 54:2 55:6 56:2 57:34 58:868
59:495 60:376 61:1172 62:1085 63:1940 64:4021
65:2306 66:3933 67:1933 68:1116 69:3168 70:783
71:377 72:1855 74:2432 75:325 76:339 77:870
78:667 79:455 80:1108 81:843 82:504 83:491
84:686 85:1091 86:412 87:862 88:345 89:1537
90:232 91:4073 92:524 93:1129 94:1339 95:799
96:424 97:272 98:913 99:37 101:202 103:266
106:71 107:43 108:76 109:1015 110:666 111:745
112:319 113:439 114:563 115:707 116:911 117:678
118:883 119:1199 120:334 121:687 122:1580 123:1006
124:1339 125:1353 128:248 129:181 130:166 131:581
132:119 133:21 134:215 135:52 136:212 137:134
138:293 139:109 140:493 141:289 142:389 143:415
144:488 145:61 146:466 147:228 148:635 149:250
150:153 151:189 152:444 153:179 154:6 155:393
156:201 157:354 158:143 159:456 160:320 161:207
162:335 163:174 164:513 165:370 166:536 167:432
168:746 169:146 170:844 171:84 172:1 173:1644
174:631 175:390 176:167 177:246 178:1007 180:1018
181:25 182:608 183:233 184:352 185:1 186:1412
187:672 188:940 189:869 190:5141 192:5913 193:5000
194:3524 195:3029 196:1231 197:147 198:3590 199:4108
200:5511 201:1635 202:8503 203:8514 204:4242 205:2339
206:2675 207:2819 208:4009 209:3441 210:2672 211:1465
212:2092 213:1762 214:772 215:76 216:4837 217:1598
218:549 219:345 220:1226 221:515 222:352 223:259
End of report
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