[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Apr 9 04:39:55 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 <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 09 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 352501
Prefixes after maximum aggregation: 160116
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174726
Total ASes present in the Internet Routing Table: 37229
Prefixes per ASN: 9.47
Origin-only ASes present in the Internet Routing Table: 31242
Origin ASes announcing only one prefix: 15033
Transit ASes present in the Internet Routing Table: 5011
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 554
Unregistered ASNs in the Routing Table: 244
Number of 32-bit ASNs allocated by the RIRs: 1270
Number of 32-bit ASNs visible in the Routing Table: 976
Prefixes from 32-bit ASNs in the Routing Table: 2181
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 179
Number of addresses announced to Internet: 2404831680
Equivalent to 143 /8s, 86 /16s and 209 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 145944
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87803
Total APNIC prefixes after maximum aggregation: 29890
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 84782
Unique aggregates announced from the APNIC address blocks: 36887
APNIC Region origin ASes present in the Internet Routing Table: 4397
APNIC Prefixes per ASN: 19.28
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 698
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 605565472
Equivalent to 36 /8s, 24 /16s and 50 /24s
Percentage of available APNIC address space announced: 76.8
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: 138983
Total ARIN prefixes after maximum aggregation: 70940
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111475
Unique aggregates announced from the ARIN address blocks: 45128
ARIN Region origin ASes present in the Internet Routing Table: 14304
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5465
ARIN Region transit ASes present in the Internet Routing Table: 1487
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 797692928
Equivalent to 47 /8s, 139 /16s and 212 /24s
Percentage of available ARIN address space announced: 63.4
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: 83363
Total RIPE prefixes after maximum aggregation: 47605
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 76622
Unique aggregates announced from the RIPE address blocks: 50561
RIPE Region origin ASes present in the Internet Routing Table: 15488
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7790
RIPE Region transit ASes present in the Internet Routing Table: 2419
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 721
Number of RIPE addresses announced to Internet: 464002432
Equivalent to 27 /8s, 168 /16s and 29 /24s
Percentage of available RIPE address space announced: 74.7
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: 32267
Total LACNIC prefixes after maximum aggregation: 7402
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31330
Unique aggregates announced from the LACNIC address blocks: 16335
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.85
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 259
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: 192
Number of LACNIC addresses announced to Internet: 81775488
Equivalent to 4 /8s, 223 /16s and 203 /24s
Percentage of available LACNIC address space announced: 54.2
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: 7630
Total AfriNIC prefixes after maximum aggregation: 1820
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6000
Unique aggregates announced from the AfriNIC address blocks: 1858
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.6
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: 22693120
Equivalent to 1 /8s, 90 /16s and 69 /24s
Percentage of available AfriNIC address space announced: 33.8
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 2440 9515 909 Korea Telecom (KIX)
7545 1547 301 83 TPG Internet Pty Ltd
17974 1458 480 33 PT TELEKOMUNIKASI INDONESIA
4755 1443 634 167 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
4808 1063 2140 293 CNCGROUP IP network: China169
9583 1055 77 494 Sify Limited
9829 1003 867 56 BSNL National Internet Backbo
17488 942 162 98 Hathway IP Over Cable Interne
18101 935 116 139 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 3666 3822 255 bellsouth.net, inc.
4323 2541 1090 396 Time Warner Telecom
1785 1791 681 131 PaeTec Communications, Inc.
18566 1642 335 197 Covad Communications
6478 1607 305 36 AT&T Worldnet Services
20115 1536 1551 641 Charter Communications
19262 1494 4949 297 Verizon Global Networks
7018 1354 6801 880 AT&T WorldNet Services
22773 1294 2865 84 Cox Communications, Inc.
2386 1281 538 924 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
6830 515 1780 319 UPC Distribution Services
34984 495 97 188 BILISIM TELEKOM
29049 463 34 34 AzerSat LLC.
3292 455 2013 392 TDC Tele Danmark
8866 446 134 26 Bulgarian Telecommunication C
20940 441 127 338 Akamai Technologies European
3320 419 7607 365 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 403 577 6 Uni2 Autonomous System
702 394 1800 307 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 1417 263 156 TVCABLE BOGOTA
28573 1271 972 86 NET Servicos de Comunicao S.A
8151 1241 2679 367 UniNet S.A. de C.V.
6503 1112 354 72 AVANTEL, S.A.
7303 900 464 136 Telecom Argentina Stet-France
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 514 225 98 Empresa Nacional de Telecomun
11172 487 99 81 Servicios Alestra S.A de C.V
27947 481 53 54 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 839 445 11 TEDATA
24863 771 147 37 LINKdotNET AS number
15475 420 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 210 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 148 441 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 3666 3822 255 bellsouth.net, inc.
4323 2541 1090 396 Time Warner Telecom
4766 2440 9515 909 Korea Telecom (KIX)
23456 2181 634 1179 32-bit ASN transition
1785 1791 681 131 PaeTec Communications, Inc.
18566 1642 335 197 Covad Communications
6478 1607 305 36 AT&T Worldnet Services
7545 1547 301 83 TPG Internet Pty Ltd
20115 1536 1551 641 Charter Communications
19262 1494 4949 297 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2541 2145 Time Warner Telecom
1785 1791 1660 PaeTec Communications, Inc.
6478 1607 1571 AT&T Worldnet Services
4766 2440 1531 Korea Telecom (KIX)
7545 1547 1464 TPG Internet Pty Ltd
18566 1642 1445 Covad Communications
17974 1458 1425 PT TELEKOMUNIKASI INDONESIA
4755 1443 1276 TATA Communications formerly
10620 1417 1261 TVCABLE BOGOTA
11492 1267 1252 Cable One
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 E-Rent LLC
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
31.3.80.0/21 23456 32-bit ASN transition
31.3.96.0/21 35470 XL Network
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 /10:26 /11:74 /12:219
/13:448 /14:770 /15:1373 /16:11583 /17:5730 /18:9448
/19:19121 /20:25018 /21:25421 /22:33575 /23:32209 /24:184373
/25:1096 /26:1257 /27:683 /28:30 /29:8 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3666 bellsouth.net, inc.
18566 1620 1642 Covad Communications
6478 1561 1607 AT&T Worldnet Services
4323 1362 2541 Time Warner Telecom
10620 1307 1417 TVCABLE BOGOTA
11492 1216 1267 Cable One
23456 1127 2181 32-bit ASN transition
7011 1061 1161 Citizens Utilities
1785 1057 1791 PaeTec Communications, Inc.
6503 897 1112 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:296 2:55 4:14 5:1 8:350 12:2004
13:1 14:434 15:15 16:3 17:8 20:9
23:5 24:1601 27:702 31:213 32:60 33:3
34:2 37:1 38:752 39:1 40:101 41:2371
42:1 44:3 46:793 47:4 49:171 50:219
52:13 55:4 56:2 57:27 58:845 59:489
60:387 61:1164 62:1002 63:1921 64:3893 65:2336
66:4312 67:1805 68:1080 69:2934 70:702 71:343
72:1900 73:1 74:2327 75:284 76:336 77:852
78:688 79:458 80:1087 81:822 82:508 83:458
84:648 85:1041 86:556 87:761 88:340 89:1584
90:178 91:3678 92:497 93:1046 94:1258 95:776
96:448 97:252 98:821 99:35 101:61 106:2
107:4 108:78 109:936 110:531 111:679 112:324
113:385 114:511 115:700 116:932 117:674 118:774
119:1137 120:289 121:712 122:1621 123:1055 124:1282
125:1258 128:265 129:167 130:172 131:565 132:100
133:20 134:216 135:49 136:212 137:142 138:301
139:104 140:486 141:173 142:377 143:388 144:480
145:53 146:441 147:202 148:629 149:273 150:169
151:187 152:300 153:180 154:3 155:392 156:189
157:325 158:132 159:381 160:317 161:242 162:277
163:164 164:489 165:350 166:510 167:418 168:723
169:154 170:774 171:74 172:1 173:1257 174:535
175:349 177:77 178:834 180:806 181:7 182:416
183:200 184:240 185:1 186:1124 187:914 188:933
189:1041 190:4810 192:5776 193:4808 194:3471 195:2948
196:1206 197:17 198:3577 199:3906 200:5546 201:1474
202:8377 203:8466 204:4128 205:2323 206:2648 207:2999
208:3920 209:3505 210:2722 211:1365 212:1978 213:1717
214:732 215:66 216:4867 217:1640 218:556 219:386
220:1193 221:480 222:312 223:117
End of report
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