[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Jun 24 16:05:12 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 25 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 361681
Prefixes after maximum aggregation: 164222
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178750
Total ASes present in the Internet Routing Table: 37989
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31644
Origin ASes announcing only one prefix: 15205
Transit ASes present in the Internet Routing Table: 5162
Transit-only ASes present in the Internet Routing Table: 136
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: 849
Unregistered ASNs in the Routing Table: 461
Number of 32-bit ASNs allocated by the RIRs: 1493
Number of 32-bit ASNs visible in the Routing Table: 1183
Prefixes from 32-bit ASNs in the Routing Table: 2711
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 137
Number of addresses announced to Internet: 2493130048
Equivalent to 148 /8s, 154 /16s and 37 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150698
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89840
Total APNIC prefixes after maximum aggregation: 30209
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86590
Unique aggregates announced from the APNIC address blocks: 36226
APNIC Region origin ASes present in the Internet Routing Table: 4497
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 712
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: 52
Number of APNIC addresses announced to Internet: 622748704
Equivalent to 37 /8s, 30 /16s and 100 /24s
Percentage of available APNIC address space announced: 79.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 141304
Total ARIN prefixes after maximum aggregation: 72518
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 113252
Unique aggregates announced from the ARIN address blocks: 46525
ARIN Region origin ASes present in the Internet Routing Table: 14441
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5515
ARIN Region transit ASes present in the Internet Routing Table: 1518
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 819201536
Equivalent to 48 /8s, 212 /16s and 6 /24s
Percentage of available ARIN address space announced: 65.1
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: 86138
Total RIPE prefixes after maximum aggregation: 48944
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79529
Unique aggregates announced from the RIPE address blocks: 52628
RIPE Region origin ASes present in the Internet Routing Table: 15751
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7864
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: 870
Number of RIPE addresses announced to Internet: 478213376
Equivalent to 28 /8s, 128 /16s and 245 /24s
Percentage of available RIPE address space announced: 77.0
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: 33273
Total LACNIC prefixes after maximum aggregation: 7572
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32313
Unique aggregates announced from the LACNIC address blocks: 16912
LACNIC Region origin ASes present in the Internet Routing Table: 1471
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 245
Number of LACNIC addresses announced to Internet: 85595904
Equivalent to 5 /8s, 26 /16s and 23 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8197
Total AfriNIC prefixes after maximum aggregation: 1952
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6495
Unique aggregates announced from the AfriNIC address blocks: 1981
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 14.15
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24303616
Equivalent to 1 /8s, 114 /16s and 216 /24s
Percentage of available AfriNIC address space announced: 36.2
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 2458 9500 928 Korea Telecom (KIX)
17974 1842 460 45 PT TELEKOMUNIKASI INDONESIA
7545 1542 301 84 TPG Internet Pty Ltd
4755 1479 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
4808 1051 2092 302 CNCGROUP IP network: China169
9829 1043 886 64 BSNL National Internet Backbo
17488 957 183 104 Hathway IP Over Cable Interne
18101 931 116 138 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 3629 3819 249 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1797 681 122 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
20115 1586 1531 635 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1451 4805 372 Verizon Global Networks
7018 1358 7053 892 AT&T WorldNet Services
22773 1346 2897 87 Cox Communications, Inc.
7029 1309 790 298 Alltel Information 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
34984 530 107 183 BILISIM TELEKOM
6830 515 1780 320 UPC Distribution Services
3292 469 2080 404 TDC Tele Danmark
20940 467 137 359 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 437 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 396 1839 345 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 1532 281 157 TVCABLE BOGOTA
8151 1422 2736 358 UniNet S.A. de C.V.
28573 1264 993 78 NET Servicos de Comunicao S.A
7303 993 507 171 Telecom Argentina Stet-France
6503 741 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 531 231 94 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 500 53 52 Telconet 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 798 147 37 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 525 74 8 Nile Online
36992 318 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 216 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 86 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 3629 3819 249 bellsouth.net, inc.
23456 2711 657 1466 32-bit ASN transition
4766 2458 9500 928 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1842 460 45 PT TELEKOMUNIKASI INDONESIA
1785 1797 681 122 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
20115 1586 1531 635 Charter Communications
7545 1542 301 84 TPG Internet Pty Ltd
10620 1532 281 157 TVCABLE BOGOTA
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 1842 1797 PT TELEKOMUNIKASI INDONESIA
1785 1797 1675 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2458 1530 Korea Telecom (KIX)
7545 1542 1458 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1479 1311 TATA Communications formerly
4323 1661 1263 Time Warner Telecom
22773 1346 1259 Cox Communications, Inc.
23456 2711 1245 32-bit ASN transition
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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1395 /16:11963 /17:5860 /18:9743
/19:19407 /20:25807 /21:26086 /22:34501 /23:33493 /24:188475
/25:1088 /26:1268 /27:728 /28:214 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2233 3629 bellsouth.net, inc.
18566 1869 1913 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1335 2711 32-bit ASN transition
11492 1090 1136 Cable One
7011 1058 1159 Citizens Utilities
7029 1055 1309 Alltel Information Services,
1785 1050 1797 PaeTec Communications, Inc.
22773 861 1346 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:297 2:42 4:16 5:1 6:3 8:336
12:1978 13:1 14:463 15:15 16:3 17:8
20:10 23:12 24:1657 27:806 31:482 32:64
33:4 34:2 37:1 38:738 39:3 40:103
41:2550 42:2 44:3 46:986 47:3 49:196
50:413 52:13 54:2 55:2 56:2 57:32
58:856 59:473 60:386 61:1183 62:1051 63:1937
64:3945 65:2288 66:3881 67:1901 68:1092 69:3048
70:756 71:388 72:1888 74:2383 75:319 76:340
77:884 78:714 79:464 80:1109 81:837 82:492
83:456 84:670 85:1078 86:552 87:759 88:333
89:1525 90:209 91:3871 92:536 93:1045 94:1316
95:839 96:445 97:253 98:880 99:36 101:76
103:90 106:10 107:16 108:70 109:1012 110:612
111:707 112:303 113:406 114:543 115:666 116:968
117:671 118:851 119:1144 120:313 121:669 122:1633
123:959 124:1303 125:1239 128:247 129:172 130:168
131:577 132:112 133:21 134:214 135:48 136:214
137:138 138:300 139:114 140:479 141:239 142:403
143:419 144:489 145:54 146:450 147:215 148:659
149:245 150:170 151:190 152:332 153:180 154:4
155:398 156:195 157:350 158:137 159:452 160:313
161:208 162:310 163:162 164:506 165:354 166:534
167:433 168:739 169:158 170:846 171:78 172:1
173:1621 174:607 175:372 176:138 177:150 178:1008
180:898 181:19 182:484 183:223 184:307 185:1
186:1234 187:738 188:873 189:913 190:4908 192:5867
193:4973 194:3489 195:3040 196:1222 197:41 198:3586
199:3958 200:5530 201:1503 202:8356 203:8429 204:4202
205:2347 206:2682 207:2809 208:3955 209:3471 210:2727
211:1460 212:2100 213:1739 214:772 215:69 216:4933
217:1636 218:549 219:362 220:1207 221:490 222:361
223:161
End of report
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