[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Dic 23 17:23:41 BRST 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 24 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 387081
Prefixes after maximum aggregation: 168128
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189666
Total ASes present in the Internet Routing Table: 39672
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 32553
Origin ASes announcing only one prefix: 15517
Transit ASes present in the Internet Routing Table: 5339
Transit-only ASes present in the Internet Routing Table: 141
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: 1962
Unregistered ASNs in the Routing Table: 1019
Number of 32-bit ASNs allocated by the RIRs: 2123
Number of 32-bit ASNs visible in the Routing Table: 1780
Prefixes from 32-bit ASNs in the Routing Table: 4232
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 127
Number of addresses announced to Internet: 2503477552
Equivalent to 149 /8s, 56 /16s and 9 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 163949
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95769
Total APNIC prefixes after maximum aggregation: 31336
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92133
Unique aggregates announced from the APNIC address blocks: 38669
APNIC Region origin ASes present in the Internet Routing Table: 4619
APNIC Prefixes per ASN: 19.95
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 125
Number of APNIC addresses announced to Internet: 632233600
Equivalent to 37 /8s, 175 /16s and 30 /24s
Percentage of available APNIC address space announced: 80.2
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: 146693
Total ARIN prefixes after maximum aggregation: 74924
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118806
Unique aggregates announced from the ARIN address blocks: 48828
ARIN Region origin ASes present in the Internet Routing Table: 14819
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1566
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: 14
Number of ARIN addresses announced to Internet: 804598720
Equivalent to 47 /8s, 245 /16s and 51 /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: 94898
Total RIPE prefixes after maximum aggregation: 51720
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 86897
Unique aggregates announced from the RIPE address blocks: 55306
RIPE Region origin ASes present in the Internet Routing Table: 16209
RIPE Prefixes per ASN: 5.36
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2575
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: 1239
Number of RIPE addresses announced to Internet: 494850504
Equivalent to 29 /8s, 126 /16s and 209 /24s
Percentage of available RIPE address space announced: 79.7
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: 36823
Total LACNIC prefixes after maximum aggregation: 8014
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36312
Unique aggregates announced from the LACNIC address blocks: 18904
LACNIC Region origin ASes present in the Internet Routing Table: 1559
LACNIC Prefixes per ASN: 23.29
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 398
Number of LACNIC addresses announced to Internet: 94882952
Equivalent to 5 /8s, 167 /16s and 204 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8506
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6551
Unique aggregates announced from the AfriNIC address blocks: 2036
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.02
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.5
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: 30835968
Equivalent to 1 /8s, 214 /16s and 133 /24s
Percentage of available AfriNIC address space announced: 45.9
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 2488 11102 967 Korea Telecom (KIX)
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4755 1515 385 157 TATA Communications formerly
7552 1420 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1076 2036 307 CNCGROUP IP network: China169
24560 1012 385 167 Bharti Airtel Ltd., Telemedia
18101 974 131 157 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 3473 3814 219 bellsouth.net, inc.
7029 2910 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1860 680 122 PaeTec Communications, Inc.
4323 1621 1065 385 Time Warner Telecom
20115 1612 1549 622 Charter Communications
22773 1515 2909 107 Cox Communications, Inc.
30036 1466 260 686 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1302 7012 854 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 1617 480 15 Corbina telecom
15557 1092 2161 64 LDCOM NETWORKS
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 648 1928 413 UPC Distribution Services
34984 628 132 197 BILISIM TELEKOM
20940 555 179 441 Akamai Technologies European
12479 551 636 53 Uni2 Autonomous System
3320 532 8162 398 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 464 134 27 Bulgarian Telecommunication C
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 1719 318 157 TVCABLE BOGOTA
28573 1574 1064 75 NET Servicos de Comunicao S.A
8151 1452 2960 356 UniNet S.A. de C.V.
7303 1249 752 174 Telecom Argentina Stet-France
27947 631 73 94 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 90 Empresa Nacional de Telecomun
6503 539 434 67 AVANTEL, S.A.
11172 530 102 97 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
8452 1036 958 13 TEDATA
24863 790 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 160 664 82 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 3473 3814 219 bellsouth.net, inc.
7029 2910 1017 200 Windstream Communications Inc
4766 2488 11102 967 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1860 680 122 PaeTec Communications, Inc.
10620 1719 318 157 TVCABLE BOGOTA
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4323 1621 1065 385 Time Warner Telecom
8402 1617 480 15 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2910 2710 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1860 1738 PaeTec Communications, Inc.
17974 1716 1678 PT TELEKOMUNIKASI INDONESIA
8402 1617 1602 Corbina telecom
10620 1719 1562 TVCABLE BOGOTA
7545 1629 1543 TPG Internet Pty Ltd
4766 2488 1521 Korea Telecom (KIX)
28573 1574 1499 NET Servicos de Comunicao S.A
7552 1420 1413 Vietel Corporation
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.19.72.0/21 42322 Zhanr Ltd.
37.25.64.0/21 33828 iptoX GmbH
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 /12:237
/13:465 /14:814 /15:1448 /16:12072 /17:6121 /18:10183
/19:20111 /20:27962 /21:28218 /22:38383 /23:35824 /24:201495
/25:1182 /26:1403 /27:771 /28:166 /29:55 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2538 2910 Windstream Communications Inc
6389 2118 3473 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1614 1719 TVCABLE BOGOTA
8402 1596 1617 Corbina telecom
30036 1426 1466 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1063 1860 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:470 2:427 4:15 5:1 6:3 8:366
12:1946 13:1 14:576 15:11 16:3 17:7
20:9 23:79 24:1716 27:1129 31:734 32:67
33:2 34:2 36:4 37:6 38:774 40:115
41:2978 42:78 43:1 44:3 46:1142 47:3
49:280 50:471 52:13 55:6 56:2 57:42
58:924 59:488 60:342 61:1172 62:937 63:1963
64:4137 65:2303 66:4372 67:1989 68:1167 69:3134
70:924 71:410 72:1787 74:2640 75:431 76:320
77:941 78:871 79:469 80:1167 81:839 82:524
83:529 84:577 85:1162 86:743 87:905 88:353
89:1585 90:249 91:4375 92:533 93:1525 94:1333
95:1051 96:398 97:286 98:785 99:38 100:2
101:130 103:582 106:11 107:118 108:100 109:1404
110:675 111:827 112:432 113:494 114:591 115:707
116:873 117:713 118:891 119:1272 120:359 121:671
122:1600 123:1029 124:1329 125:1347 128:554 129:189
130:185 131:586 132:163 133:21 134:226 135:54
136:213 137:151 138:285 139:126 140:492 141:256
142:382 143:389 144:501 145:67 146:475 147:222
148:634 149:269 150:165 151:191 152:445 153:170
154:7 155:383 156:210 157:365 158:154 159:504
160:358 161:221 162:333 163:186 164:522 165:389
166:544 167:455 168:816 169:146 170:830 171:95
172:4 173:1803 174:602 175:400 176:323 177:425
178:1148 180:1207 181:39 182:674 183:265 184:408
185:1 186:1398 187:780 188:1003 189:1174 190:5316
192:5979 193:5439 194:3781 195:3182 196:1291 197:170
198:3615 199:4233 200:5523 201:1681 202:8489 203:8524
204:4344 205:2419 206:2681 207:2819 208:4010 209:3563
210:2746 211:1476 212:1956 213:1800 214:796 215:93
216:4919 217:1473 218:569 219:336 220:1255 221:529
222:323 223:265
End of report
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