[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Sep 30 16:39:24 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 01 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 374848
Prefixes after maximum aggregation: 168719
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185153
Total ASes present in the Internet Routing Table: 38930
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 32252
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5218
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1474
Unregistered ASNs in the Routing Table: 802
Number of 32-bit ASNs allocated by the RIRs: 1802
Number of 32-bit ASNs visible in the Routing Table: 1460
Prefixes from 32-bit ASNs in the Routing Table: 3347
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2481536768
Equivalent to 147 /8s, 233 /16s and 63 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
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: 156962
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93945
Total APNIC prefixes after maximum aggregation: 30799
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90409
Unique aggregates announced from the APNIC address blocks: 37945
APNIC Region origin ASes present in the Internet Routing Table: 4567
APNIC Prefixes per ASN: 19.80
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 90
Number of APNIC addresses announced to Internet: 628377696
Equivalent to 37 /8s, 116 /16s and 72 /24s
Percentage of available APNIC address space announced: 79.7
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: 143988
Total ARIN prefixes after maximum aggregation: 73994
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116124
Unique aggregates announced from the ARIN address blocks: 47994
ARIN Region origin ASes present in the Internet Routing Table: 14694
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5653
ARIN Region transit ASes present in the Internet Routing Table: 1557
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: 804495360
Equivalent to 47 /8s, 243 /16s and 160 /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: 89839
Total RIPE prefixes after maximum aggregation: 50430
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82551
Unique aggregates announced from the RIPE address blocks: 54098
RIPE Region origin ASes present in the Internet Routing Table: 16005
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7962
RIPE Region transit ASes present in the Internet Routing Table: 2506
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1032
Number of RIPE addresses announced to Internet: 490070912
Equivalent to 29 /8s, 53 /16s and 227 /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: 35011
Total LACNIC prefixes after maximum aggregation: 7797
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34336
Unique aggregates announced from the LACNIC address blocks: 18003
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.44
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 279
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: 322
Number of LACNIC addresses announced to Internet: 89805184
Equivalent to 5 /8s, 90 /16s and 81 /24s
Percentage of available LACNIC address space announced: 59.5
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: 8547
Total AfriNIC prefixes after maximum aggregation: 2002
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6606
Unique aggregates announced from the AfriNIC address blocks: 1963
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 4
Number of AfriNIC addresses announced to Internet: 27644160
Equivalent to 1 /8s, 165 /16s and 209 /24s
Percentage of available AfriNIC address space announced: 41.2
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 2509 11048 962 Korea Telecom (KIX)
17974 1986 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1607 303 86 TPG Internet Pty Ltd
4755 1546 638 176 TATA Communications formerly
24560 1184 346 195 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
7552 1105 1064 7 Vietel Corporation
9583 1086 80 502 Sify Limited
4808 1074 2096 303 CNCGROUP IP network: China169
18101 952 165 142 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 3557 3817 225 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1829 680 124 PaeTec Communications, Inc.
7029 1720 1008 194 Windstream Communications Inc
4323 1625 1082 391 Time Warner Telecom
20115 1595 1542 635 Charter Communications
22773 1456 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1390 252 666 Mediacom Communications Corp
7018 1338 7051 874 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 1224 352 13 Corbina telecom
34984 577 108 180 BILISIM TELEKOM
6830 557 1873 333 UPC Distribution Services
20940 530 178 408 Akamai Technologies European
3320 501 8169 383 Deutsche Telekom AG
3292 479 2082 408 TDC Tele Danmark
12479 474 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1681 310 155 TVCABLE BOGOTA
8151 1410 2823 344 UniNet S.A. de C.V.
28573 1368 1013 70 NET Servicos de Comunicao S.A
7303 1164 683 175 Telecom Argentina Stet-France
14420 742 58 87 CORPORACION NACIONAL DE TELEC
22047 581 322 17 VTR PUNTO NET S.A.
6503 577 450 69 AVANTEL, S.A.
27947 573 71 83 Telconet S.A
3816 536 232 98 Empresa Nacional de Telecomun
11172 521 85 93 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 813 147 37 LINKdotNET AS number
8452 663 445 11 TEDATA
15475 449 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 278 939 231 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 192 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 3557 3817 225 bellsouth.net, inc.
4766 2509 11048 962 Korea Telecom (KIX)
17974 1986 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1829 680 124 PaeTec Communications, Inc.
7029 1720 1008 194 Windstream Communications Inc
10620 1681 310 155 TVCABLE BOGOTA
4323 1625 1082 391 Time Warner Telecom
7545 1607 303 86 TPG Internet Pty Ltd
20115 1595 1542 635 Charter Communications
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 1986 1953 PT TELEKOMUNIKASI INDONESIA
1785 1829 1705 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
4766 2509 1547 Korea Telecom (KIX)
7029 1720 1526 Windstream Communications Inc
10620 1681 1526 TVCABLE BOGOTA
7545 1607 1521 TPG Internet Pty Ltd
4755 1546 1370 TATA Communications formerly
22773 1456 1356 Cox Communications, Inc.
28573 1368 1298 NET Servicos de Comunicao S.A
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 /12:235
/13:463 /14:802 /15:1420 /16:11981 /17:5988 /18:10044
/19:19827 /20:26999 /21:27144 /22:36733 /23:34891 /24:194773
/25:1132 /26:1345 /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 2194 3557 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
7029 1417 1720 Windstream Communications Inc
30036 1351 1390 Mediacom Communications Corp
8402 1185 1224 Corbina telecom
11492 1115 1153 Cable One
1785 1054 1829 PaeTec Communications, Inc.
7011 1052 1173 Citizens Utilities
22773 945 1456 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:381 2:393 4:15 5:1 6:3 8:353
12:1956 13:1 14:532 15:13 16:3 17:7
20:10 23:36 24:1688 27:959 31:564 32:65
33:4 34:2 36:4 38:746 40:108 41:2639
42:48 44:3 46:993 47:3 49:263 50:432
52:13 55:3 56:2 57:38 58:879 59:492
60:365 61:1178 62:1089 63:1935 64:4052 65:2306
66:3979 67:1952 68:1102 69:3194 70:814 71:377
72:1849 74:2458 75:350 76:341 77:883 78:829
79:480 80:1122 81:835 82:503 83:501 84:622
85:1118 86:408 87:876 88:352 89:1591 90:268
91:4143 92:535 93:1339 94:1318 95:964 96:440
97:277 98:905 99:37 101:209 103:331 106:70
107:56 108:47 109:1034 110:663 111:796 112:322
113:449 114:569 115:681 116:870 117:689 118:866
119:1208 120:334 121:678 122:1605 123:1013 124:1353
125:1393 128:244 129:178 130:163 131:580 132:112
133:21 134:214 135:54 136:213 137:139 138:288
139:122 140:494 141:292 142:388 143:416 144:482
145:63 146:471 147:215 148:641 149:264 150:155
151:193 152:446 153:177 154:6 155:385 156:207
157:361 158:150 159:465 160:322 161:206 162:336
163:178 164:511 165:374 166:536 167:432 168:739
169:147 170:865 171:85 172:1 173:1641 174:648
175:417 176:246 177:291 178:1031 180:1090 181:37
182:627 183:215 184:355 185:1 186:1493 187:676
188:923 189:826 190:5177 192:5916 193:5011 194:3528
195:3078 196:1257 197:174 198:3626 199:4140 200:5520
201:1641 202:8580 203:8492 204:4258 205:2357 206:2676
207:2824 208:4041 209:3464 210:2696 211:1463 212:2044
213:1776 214:785 215:90 216:4897 217:1594 218:561
219:338 220:1227 221:514 222:342 223:263
End of report
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