[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Jul 9 05:07:57 EST 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 09 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362786
Prefixes after maximum aggregation: 164929
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180083
Total ASes present in the Internet Routing Table: 38135
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31710
Origin ASes announcing only one prefix: 15248
Transit ASes present in the Internet Routing Table: 5186
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 925
Unregistered ASNs in the Routing Table: 512
Number of 32-bit ASNs allocated by the RIRs: 1533
Number of 32-bit ASNs visible in the Routing Table: 1239
Prefixes from 32-bit ASNs in the Routing Table: 2861
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2493493440
Equivalent to 148 /8s, 159 /16s and 176 /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: 151395
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90104
Total APNIC prefixes after maximum aggregation: 30260
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86847
Unique aggregates announced from the APNIC address blocks: 37076
APNIC Region origin ASes present in the Internet Routing Table: 4503
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 56
Number of APNIC addresses announced to Internet: 621479200
Equivalent to 37 /8s, 11 /16s and 5 /24s
Percentage of available APNIC address space announced: 78.8
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: 141428
Total ARIN prefixes after maximum aggregation: 72827
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113365
Unique aggregates announced from the ARIN address blocks: 46672
ARIN Region origin ASes present in the Internet Routing Table: 14469
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5532
ARIN Region transit ASes present in the Internet Routing Table: 1522
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819612544
Equivalent to 48 /8s, 218 /16s and 75 /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: 86545
Total RIPE prefixes after maximum aggregation: 49132
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79935
Unique aggregates announced from the RIPE address blocks: 52845
RIPE Region origin ASes present in the Internet Routing Table: 15797
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7877
RIPE Region transit ASes present in the Internet Routing Table: 2504
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: 912
Number of RIPE addresses announced to Internet: 478890496
Equivalent to 28 /8s, 139 /16s and 74 /24s
Percentage of available RIPE address space announced: 77.1
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: 33421
Total LACNIC prefixes after maximum aggregation: 7576
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32551
Unique aggregates announced from the LACNIC address blocks: 16960
LACNIC Region origin ASes present in the Internet Routing Table: 1476
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 273
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: 254
Number of LACNIC addresses announced to Internet: 85900288
Equivalent to 5 /8s, 30 /16s and 188 /24s
Percentage of available LACNIC address space announced: 56.9
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: 8211
Total AfriNIC prefixes after maximum aggregation: 1965
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6500
Unique aggregates announced from the AfriNIC address blocks: 2004
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.9
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: 24334336
Equivalent to 1 /8s, 115 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 36.3
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 2436 11043 934 Korea Telecom (KIX)
17974 1787 461 41 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 85 TPG Internet Pty Ltd
4755 1498 635 171 TATA Communications formerly
24560 1154 336 187 Bharti Airtel Ltd., Telemedia
9829 1101 922 46 BSNL National Internet Backbo
9583 1060 78 506 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 964 186 105 Hathway IP Over Cable Interne
18101 931 116 140 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 3610 3819 244 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1806 681 122 PaeTec Communications, Inc.
4323 1656 1082 400 Time Warner Telecom
20115 1595 1533 634 Charter Communications
19262 1429 4778 392 Verizon Global Networks
7018 1366 7069 892 AT&T WorldNet Services
22773 1350 2897 88 Cox Communications, Inc.
6478 1346 251 618 AT&T Worldnet Services
7029 1287 791 301 Windstream Communications Inc
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 536 106 184 BILISIM TELEKOM
6830 512 1780 317 UPC Distribution Services
3292 466 2076 401 TDC Tele Danmark
20940 459 132 354 Akamai Technologies European
12479 453 593 7 Uni2 Autonomous System
8866 447 133 25 Bulgarian Telecommunication C
29049 441 33 45 AzerSat LLC.
3320 421 8151 368 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 397 1855 346 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 1543 282 158 TVCABLE BOGOTA
8151 1432 2746 353 UniNet S.A. de C.V.
28573 1268 995 78 NET Servicos de Comunicao S.A
7303 1004 512 177 Telecom Argentina Stet-France
6503 747 354 74 AVANTEL, S.A.
14420 688 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 532 230 96 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 53 53 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
8452 797 445 11 TEDATA
24863 790 147 37 LINKdotNET AS number
15475 514 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 260 937 222 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 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 3610 3819 244 bellsouth.net, inc.
23456 2861 699 1535 32-bit ASN transition
4766 2436 11043 934 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1806 681 122 PaeTec Communications, Inc.
17974 1787 461 41 PT TELEKOMUNIKASI INDONESIA
4323 1656 1082 400 Time Warner Telecom
20115 1595 1533 634 Charter Communications
7545 1548 301 85 TPG Internet Pty Ltd
10620 1543 282 158 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 1787 1746 PT TELEKOMUNIKASI INDONESIA
1785 1806 1684 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2436 1502 Korea Telecom (KIX)
7545 1548 1463 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
4755 1498 1327 TATA Communications formerly
23456 2861 1326 32-bit ASN transition
22773 1350 1262 Cox Communications, Inc.
4323 1656 1256 Time Warner Telecom
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 /8:22 /9:12 /10:28 /11:81 /12:232
/13:468 /14:804 /15:1401 /16:11993 /17:5887 /18:9815
/19:19456 /20:25837 /21:26191 /22:34744 /23:33600 /24:188907
/25:1083 /26:1262 /27:735 /28:211 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2222 3610 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1406 2861 32-bit ASN transition
6478 1316 1346 AT&T Worldnet Services
11492 1096 1142 Cable One
7011 1054 1156 Citizens Utilities
1785 1053 1806 PaeTec Communications, Inc.
7029 1034 1287 Windstream Communications Inc
22773 864 1350 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:324 2:45 4:16 5:1 6:3 8:337
12:1976 13:1 14:481 15:15 16:3 17:5
20:10 23:13 24:1678 27:814 31:490 32:64
33:4 34:2 36:4 38:744 40:103 41:2564
42:32 44:3 46:1036 47:3 49:198 50:442
52:13 54:2 55:4 56:2 57:35 58:860
59:479 60:386 61:1180 62:1036 63:1935 64:3942
65:2294 66:3869 67:1897 68:1091 69:3040 70:758
71:389 72:1886 74:2389 75:316 76:341 77:888
78:712 79:461 80:1116 81:839 82:498 83:456
84:692 85:1073 86:554 87:759 88:335 89:1531
90:223 91:3946 92:533 93:1052 94:1334 95:855
96:446 97:256 98:891 99:37 101:77 103:115
106:10 107:21 108:70 109:1028 110:614 111:706
112:304 113:400 114:534 115:674 116:962 117:667
118:857 119:1161 120:312 121:675 122:1581 123:973
124:1304 125:1231 128:246 129:172 130:168 131:578
132:112 133:21 134:214 135:48 136:216 137:136
138:299 139:116 140:477 141:240 142:403 143:416
144:483 145:54 146:449 147:215 148:661 149:248
150:164 151:189 152:331 153:182 154:4 155:398
156:198 157:354 158:138 159:450 160:311 161:201
162:309 163:165 164:503 165:358 166:530 167:431
168:740 169:155 170:847 171:78 172:1 173:1642
174:610 175:379 176:141 177:163 178:988 180:880
181:23 182:488 183:204 184:342 185:1 186:1273
187:682 188:878 189:934 190:4949 192:5883 193:4968
194:3520 195:3032 196:1237 197:41 198:3573 199:3955
200:5534 201:1490 202:8396 203:8425 204:4215 205:2306
206:2677 207:2810 208:3965 209:3444 210:2681 211:1465
212:2097 213:1742 214:782 215:70 216:4937 217:1639
218:537 219:359 220:1189 221:492 222:357 223:185
End of report
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