[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Jun 10 16:02:42 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 11 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 359107
Prefixes after maximum aggregation: 162630
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178253
Total ASes present in the Internet Routing Table: 37831
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 31580
Origin ASes announcing only one prefix: 15168
Transit ASes present in the Internet Routing Table: 5113
Transit-only ASes present in the Internet Routing Table: 135
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: 783
Unregistered ASNs in the Routing Table: 419
Number of 32-bit ASNs allocated by the RIRs: 1446
Number of 32-bit ASNs visible in the Routing Table: 1138
Prefixes from 32-bit ASNs in the Routing Table: 2602
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2487684608
Equivalent to 148 /8s, 71 /16s and 14 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 149733
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88931
Total APNIC prefixes after maximum aggregation: 29983
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85430
Unique aggregates announced from the APNIC address blocks: 36696
APNIC Region origin ASes present in the Internet Routing Table: 4477
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 46
Number of APNIC addresses announced to Internet: 620146464
Equivalent to 36 /8s, 246 /16s and 175 /24s
Percentage of available APNIC address space announced: 78.6
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: 140907
Total ARIN prefixes after maximum aggregation: 71613
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112819
Unique aggregates announced from the ARIN address blocks: 46088
ARIN Region origin ASes present in the Internet Routing Table: 14426
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5503
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818671872
Equivalent to 48 /8s, 203 /16s and 241 /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: 85501
Total RIPE prefixes after maximum aggregation: 48681
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78946
Unique aggregates announced from the RIPE address blocks: 52214
RIPE Region origin ASes present in the Internet Routing Table: 15695
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7840
RIPE Region transit ASes present in the Internet Routing Table: 2472
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: 847
Number of RIPE addresses announced to Internet: 477055488
Equivalent to 28 /8s, 111 /16s and 74 /24s
Percentage of available RIPE address space announced: 76.9
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: 32899
Total LACNIC prefixes after maximum aggregation: 7498
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 31955
Unique aggregates announced from the LACNIC address blocks: 16895
LACNIC Region origin ASes present in the Internet Routing Table: 1451
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 228
Number of LACNIC addresses announced to Internet: 84687104
Equivalent to 5 /8s, 12 /16s and 57 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8043
Total AfriNIC prefixes after maximum aggregation: 1920
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6357
Unique aggregates announced from the AfriNIC address blocks: 1904
AfriNIC Region origin ASes present in the Internet Routing Table: 460
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 100
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: 5
Number of AfriNIC addresses announced to Internet: 24155648
Equivalent to 1 /8s, 112 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 36.0
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 2462 9500 924 Korea Telecom (KIX)
17974 1561 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 86 TPG Internet Pty Ltd
4755 1471 634 166 TATA Communications formerly
24560 1152 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1071 79 500 Sify Limited
4808 1052 2098 299 CNCGROUP IP network: China169
9829 1029 870 67 BSNL National Internet Backbo
17488 946 191 102 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 3628 3822 252 bellsouth.net, inc.
4323 1963 1097 401 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1791 681 122 PaeTec Communications, Inc.
6478 1721 319 45 AT&T Worldnet Services
20115 1539 1541 633 Charter Communications
19262 1490 4932 314 Verizon Global Networks
7018 1364 7052 891 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1271 536 912 AT&T Data Communications Serv
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 521 106 180 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 464 2078 399 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG
8551 406 355 45 Bezeq International
702 396 1803 310 UUNET - Commercial IP service
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 1513 278 157 TVCABLE BOGOTA
28573 1321 992 80 NET Servicos de Comunicao S.A
8151 1268 2727 364 UniNet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 739 354 73 AVANTEL, S.A.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 528 231 94 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 516 262 124 Orbitel S.A. E.S.P.
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 797 445 11 TEDATA
24863 795 147 37 LINKdotNET AS number
15475 527 74 8 Nile Online
36992 308 415 18 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 210 78 10 RAYA Telecom - Egypt
33776 200 12 11 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 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 3628 3822 252 bellsouth.net, inc.
23456 2602 639 1421 32-bit ASN transition
4766 2462 9500 924 Korea Telecom (KIX)
4323 1963 1097 401 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1791 681 122 PaeTec Communications, Inc.
6478 1721 319 45 AT&T Worldnet Services
17974 1561 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 86 TPG Internet Pty Ltd
20115 1539 1541 633 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
18566 1913 1676 Covad Communications
6478 1721 1676 AT&T Worldnet Services
1785 1791 1669 PaeTec Communications, Inc.
4323 1963 1562 Time Warner Telecom
4766 2462 1538 Korea Telecom (KIX)
17974 1561 1523 PT TELEKOMUNIKASI INDONESIA
7545 1539 1453 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1471 1305 TATA Communications formerly
22773 1340 1253 Cox 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
27.0.128.0/17 7514 Media Exchange, Inc.
31.131.192.0/19 42368 RIPE Network Coordination Cen
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:462 /14:800 /15:1394 /16:11946 /17:5847 /18:9787
/19:19372 /20:25829 /21:26021 /22:34187 /23:33194 /24:186895
/25:1055 /26:1225 /27:663 /28:41 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2233 3628 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1675 1721 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1290 2602 32-bit ASN transition
11492 1092 1138 Cable One
7011 1061 1161 Citizens Utilities
1785 1050 1791 PaeTec Communications, Inc.
7029 909 1159 Alltel Information Services,
4323 875 1963 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:285 2:48 4:16 5:1 6:3 8:338
12:1977 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1611 27:772 31:429 32:60
33:4 34:2 37:1 38:737 40:103 41:2515
42:2 44:3 46:957 47:3 49:187 50:405
52:13 54:2 55:4 56:2 57:29 58:841
59:475 60:387 61:1122 62:1053 63:1935 64:3939
65:2254 66:4138 67:1884 68:1086 69:3003 70:705
71:373 72:1846 74:2354 75:309 76:340 77:881
78:706 79:457 80:1106 81:832 82:493 83:457
84:666 85:1080 86:581 87:751 88:330 89:1529
90:204 91:3839 92:526 93:1037 94:1292 95:825
96:444 97:251 98:871 99:36 101:68 103:56
106:6 107:11 108:83 109:973 110:601 111:710
112:299 113:399 114:537 115:687 116:959 117:675
118:793 119:1142 120:313 121:669 122:1627 123:950
124:1274 125:1217 128:261 129:175 130:164 131:577
132:110 133:19 134:214 135:48 136:214 137:144
138:300 139:112 140:469 141:238 142:404 143:417
144:495 145:54 146:448 147:214 148:606 149:247
150:172 151:187 152:330 153:180 154:3 155:399
156:195 157:352 158:138 159:380 160:318 161:208
162:309 163:165 164:500 165:352 166:530 167:424
168:729 169:155 170:832 171:77 172:1 173:1605
174:584 175:371 176:133 177:135 178:1003 180:886
181:18 182:466 183:216 184:297 185:1 186:1188
187:753 188:848 189:910 190:4890 192:5841 193:4918
194:3497 195:3003 196:1231 197:20 198:3585 199:3927
200:5498 201:1480 202:8316 203:8357 204:4187 205:2339
206:2679 207:2826 208:3946 209:3471 210:2713 211:1400
212:2008 213:1727 214:742 215:68 216:4923 217:1638
218:548 219:364 220:1205 221:490 222:317 223:156
End of report
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