[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 23 19:29:58 UTC 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 24 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 374059
Prefixes after maximum aggregation: 168238
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184911
Total ASes present in the Internet Routing Table: 38886
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 32232
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5223
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 35
Max AS path prepend of ASN (23456) 31
Prefixes from unregistered ASNs in the Routing Table: 1402
Unregistered ASNs in the Routing Table: 772
Number of 32-bit ASNs allocated by the RIRs: 1762
Number of 32-bit ASNs visible in the Routing Table: 1431
Prefixes from 32-bit ASNs in the Routing Table: 3276
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 2479145472
Equivalent to 147 /8s, 196 /16s and 194 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 156426
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93852
Total APNIC prefixes after maximum aggregation: 30727
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90378
Unique aggregates announced from the APNIC address blocks: 37990
APNIC Region origin ASes present in the Internet Routing Table: 4575
APNIC Prefixes per ASN: 19.75
APNIC Region origin ASes announcing only one prefix: 1262
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: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 627667040
Equivalent to 37 /8s, 105 /16s and 112 /24s
Percentage of available APNIC address space announced: 79.6
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: 143860
Total ARIN prefixes after maximum aggregation: 73754
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115959
Unique aggregates announced from the ARIN address blocks: 48009
ARIN Region origin ASes present in the Internet Routing Table: 14685
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1562
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804997888
Equivalent to 47 /8s, 251 /16s and 75 /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: 89445
Total RIPE prefixes after maximum aggregation: 50349
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82150
Unique aggregates announced from the RIPE address blocks: 54043
RIPE Region origin ASes present in the Internet Routing Table: 15994
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2509
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: 1018
Number of RIPE addresses announced to Internet: 489770368
Equivalent to 29 /8s, 49 /16s and 77 /24s
Percentage of available RIPE address space announced: 78.9
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: 34957
Total LACNIC prefixes after maximum aggregation: 7779
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34257
Unique aggregates announced from the LACNIC address blocks: 17926
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 273
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: 310
Number of LACNIC addresses announced to Internet: 89159552
Equivalent to 5 /8s, 80 /16s and 119 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8500
Total AfriNIC prefixes after maximum aggregation: 1993
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6578
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3
Number of AfriNIC addresses announced to Internet: 26803968
Equivalent to 1 /8s, 152 /16s and 255 /24s
Percentage of available AfriNIC address space announced: 39.9
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 2503 11048 956 Korea Telecom (KIX)
17974 2004 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1599 303 86 TPG Internet Pty Ltd
4755 1555 639 169 TATA Communications formerly
7552 1397 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1085 80 502 Sify Limited
4808 1074 2098 304 CNCGROUP IP network: China169
18101 950 117 142 Reliance Infocom Ltd Internet
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 3561 3817 226 bellsouth.net, inc.
18566 1913 365 238 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
4323 1623 1082 391 Time Warner Telecom
20115 1597 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1332 7050 869 AT&T WorldNet 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
8402 967 352 13 Corbina telecom
34984 566 108 181 BILISIM TELEKOM
20940 542 181 420 Akamai Technologies European
6830 533 1813 325 UPC Distribution Services
3320 493 8167 381 Deutsche Telekom AG
3292 477 2082 407 TDC Tele Danmark
12479 476 594 8 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
3301 405 1904 354 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 1679 309 156 TVCABLE BOGOTA
8151 1416 2795 354 UniNet S.A. de C.V.
28573 1362 1013 70 NET Servicos de Comunicao S.A
7303 1161 681 173 Telecom Argentina Stet-France
14420 734 58 88 CORPORACION NACIONAL DE TELEC
6503 582 450 69 AVANTEL, S.A.
22047 580 322 17 VTR PUNTO NET S.A.
27947 566 55 79 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 Servicios Alestra S.A de C.V
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 710 445 11 TEDATA
15475 451 74 8 Nile Online
36992 291 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
29571 190 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 3561 3817 226 bellsouth.net, inc.
23456 3276 774 1775 32-bit ASN transition
4766 2503 11048 956 Korea Telecom (KIX)
17974 2004 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1913 365 238 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
10620 1679 309 156 TVCABLE BOGOTA
4323 1623 1082 391 Time Warner Telecom
7545 1599 303 86 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 2004 1971 PT TELEKOMUNIKASI INDONESIA
1785 1826 1703 PaeTec Communications, Inc.
18566 1913 1675 Covad Communications
4766 2503 1547 Korea Telecom (KIX)
10620 1679 1523 TVCABLE BOGOTA
7545 1599 1513 TPG Internet Pty Ltd
7029 1706 1512 Windstream Communications Inc
23456 3276 1501 32-bit ASN transition
7552 1397 1390 Vietel Corporation
4755 1555 1386 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<<
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
/13:464 /14:801 /15:1416 /16:11985 /17:5990 /18:10025
/19:19811 /20:27043 /21:27104 /22:36625 /23:34934 /24:194103
/25:1117 /26:1336 /27:752 /28:171 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3561 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1574 1679 TVCABLE BOGOTA
23456 1564 3276 32-bit ASN transition
7029 1403 1706 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1826 PaeTec Communications, Inc.
22773 947 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:384 2:297 4:15 5:1 6:3 8:351
12:1956 13:1 14:543 15:13 16:3 17:7
20:10 23:35 24:1681 27:945 31:543 32:64
33:4 34:2 36:4 38:742 40:108 41:2586
42:48 44:3 46:992 47:3 49:257 50:421
52:13 54:2 55:4 56:2 57:35 58:875
59:492 60:340 61:1179 62:1093 63:1940 64:4048
65:2303 66:3968 67:1951 68:1116 69:3188 70:814
71:377 72:1856 74:2455 75:349 76:341 77:870
78:790 79:479 80:1126 81:838 82:505 83:517
84:622 85:1086 86:409 87:873 88:351 89:1581
90:267 91:4120 92:524 93:1289 94:1325 95:904
96:437 97:276 98:931 99:37 101:210 103:316
106:70 107:52 108:79 109:1026 110:669 111:784
112:324 113:446 114:566 115:688 116:864 117:711
118:891 119:1210 120:334 121:686 122:1609 123:1003
124:1359 125:1358 128:244 129:179 130:165 131:583
132:120 133:21 134:216 135:54 136:212 137:139
138:289 139:120 140:494 141:287 142:387 143:411
144:486 145:58 146:471 147:215 148:639 149:259
150:153 151:191 152:446 153:177 154:6 155:395
156:203 157:359 158:146 159:463 160:325 161:207
162:339 163:177 164:507 165:373 166:534 167:432
168:751 169:146 170:860 171:83 172:1 173:1653
174:643 175:400 176:212 177:275 178:998 180:1079
181:30 182:626 183:219 184:378 185:1 186:1458
187:669 188:944 189:868 190:5164 192:5906 193:5018
194:3529 195:3069 196:1250 197:175 198:3591 199:4124
200:5520 201:1636 202:8518 203:8483 204:4254 205:2341
206:2677 207:2827 208:4030 209:3455 210:2670 211:1464
212:2087 213:1776 214:781 215:76 216:4879 217:1609
218:559 219:339 220:1227 221:513 222:342 223:263
End of report
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