[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Jun 4 05:01:03 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 04 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 358561
Prefixes after maximum aggregation: 162439
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178183
Total ASes present in the Internet Routing Table: 37775
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 31544
Origin ASes announcing only one prefix: 15151
Transit ASes present in the Internet Routing Table: 5102
Transit-only ASes present in the Internet Routing Table: 134
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: 747
Unregistered ASNs in the Routing Table: 395
Number of 32-bit ASNs allocated by the RIRs: 1425
Number of 32-bit ASNs visible in the Routing Table: 1129
Prefixes from 32-bit ASNs in the Routing Table: 2579
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 165
Number of addresses announced to Internet: 2450918336
Equivalent to 146 /8s, 22 /16s and 11 /24s
Percentage of available address space announced: 66.1
Percentage of allocated address space announced: 66.1
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: 149599
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88800
Total APNIC prefixes after maximum aggregation: 30084
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 85253
Unique aggregates announced from the APNIC address blocks: 36662
APNIC Region origin ASes present in the Internet Routing Table: 4475
APNIC Prefixes per ASN: 19.05
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 619636256
Equivalent to 36 /8s, 238 /16s and 230 /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: 140579
Total ARIN prefixes after maximum aggregation: 71516
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112681
Unique aggregates announced from the ARIN address blocks: 46229
ARIN Region origin ASes present in the Internet Routing Table: 14406
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5495
ARIN Region transit ASes present in the Internet Routing Table: 1510
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: 801985792
Equivalent to 47 /8s, 205 /16s and 85 /24s
Percentage of available ARIN address space announced: 63.7
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: 85208
Total RIPE prefixes after maximum aggregation: 48504
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78635
Unique aggregates announced from the RIPE address blocks: 52035
RIPE Region origin ASes present in the Internet Routing Table: 15661
RIPE Prefixes per ASN: 5.02
RIPE Region origin ASes announcing only one prefix: 7830
RIPE Region transit ASes present in the Internet Routing Table: 2461
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: 834
Number of RIPE addresses announced to Internet: 475054592
Equivalent to 28 /8s, 80 /16s and 194 /24s
Percentage of available RIPE address space announced: 76.5
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: 33171
Total LACNIC prefixes after maximum aggregation: 7536
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32258
Unique aggregates announced from the LACNIC address blocks: 16961
LACNIC Region origin ASes present in the Internet Routing Table: 1462
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 263
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: 231
Number of LACNIC addresses announced to Internet: 84647424
Equivalent to 5 /8s, 11 /16s and 158 /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: 7999
Total AfriNIC prefixes after maximum aggregation: 1909
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6308
Unique aggregates announced from the AfriNIC address blocks: 1917
AfriNIC Region origin ASes present in the Internet Routing Table: 458
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 142
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: 23586048
Equivalent to 1 /8s, 103 /16s and 229 /24s
Percentage of available AfriNIC address space announced: 35.1
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 2460 9500 922 Korea Telecom (KIX)
17974 1541 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1470 634 166 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1141 1064 7 Vietel Corporation
4808 1086 2144 308 CNCGROUP IP network: China169
9583 1082 80 510 Sify Limited
9829 956 843 82 BSNL National Internet Backbo
18101 931 116 139 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 3641 3822 256 bellsouth.net, inc.
4323 1973 1081 400 Time Warner Telecom
18566 1875 355 269 Covad Communications
1785 1790 681 122 PaeTec Communications, Inc.
6478 1716 318 45 AT&T Worldnet Services
20115 1535 1540 633 Charter Communications
19262 1492 4936 307 Verizon Global Networks
7018 1367 7068 892 AT&T WorldNet Services
22773 1337 2897 88 Cox Communications, Inc.
2386 1268 536 911 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 517 1780 320 UPC Distribution Services
34984 517 106 179 BILISIM TELEKOM
3292 461 2078 396 TDC Tele Danmark
20940 458 134 350 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 432 593 7 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG
8551 405 354 48 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 1512 278 157 TVCABLE BOGOTA
8151 1383 2724 364 UniNet S.A. de C.V.
28573 1319 992 86 NET Servicos de Comunicao S.A
7303 960 504 154 Telecom Argentina Stet-France
6503 734 354 73 AVANTEL, S.A.
14420 675 54 89 CORPORACION NACIONAL DE TELEC
22047 565 310 15 VTR PUNTO NET S.A.
3816 527 231 93 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 515 262 124 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 833 445 11 TEDATA
24863 721 147 37 LINKdotNET AS number
15475 544 90 8 Nile Online
36992 294 399 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 208 78 10 RAYA Telecom - Egypt
29571 193 19 12 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 3641 3822 256 bellsouth.net, inc.
23456 2579 639 1398 32-bit ASN transition
4766 2460 9500 922 Korea Telecom (KIX)
4323 1973 1081 400 Time Warner Telecom
18566 1875 355 269 Covad Communications
1785 1790 681 122 PaeTec Communications, Inc.
6478 1716 318 45 AT&T Worldnet Services
17974 1541 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
20115 1535 1540 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
6478 1716 1671 AT&T Worldnet Services
1785 1790 1668 PaeTec Communications, Inc.
18566 1875 1606 Covad Communications
4323 1973 1573 Time Warner Telecom
4766 2460 1538 Korea Telecom (KIX)
17974 1541 1503 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1470 1304 TATA Communications formerly
22773 1337 1249 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.
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 /8:20 /9:12 /10:28 /11:81 /12:228
/13:461 /14:798 /15:1395 /16:11917 /17:5834 /18:9733
/19:19342 /20:25663 /21:25940 /22:34114 /23:33063 /24:186681
/25:1084 /26:1275 /27:711 /28:165 /29:8 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2243 3641 bellsouth.net, inc.
18566 1838 1875 Covad Communications
6478 1670 1716 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1260 2579 32-bit ASN transition
11492 1107 1153 Cable One
7011 1061 1160 Citizens Utilities
1785 1050 1790 PaeTec Communications, Inc.
4323 886 1973 Time Warner Telecom
22773 852 1337 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:282 2:48 4:16 5:1 6:3 8:336
12:1980 13:1 14:464 15:15 16:3 17:8
20:10 23:6 24:1613 27:752 31:419 32:60
33:4 34:2 37:1 38:737 40:102 41:2524
42:6 44:3 46:934 47:3 49:200 50:435
52:13 54:2 55:6 56:2 57:29 58:840
59:479 60:387 61:1131 62:1035 63:1937 64:3941
65:2289 66:4148 67:1867 68:1091 69:2989 70:704
71:352 72:1883 73:1 74:2354 75:305 76:341
77:873 78:700 79:460 80:1078 81:836 82:493
83:440 84:677 85:1070 86:592 87:753 88:331
89:1531 90:203 91:3808 92:524 93:1049 94:1283
95:820 96:506 97:249 98:860 99:35 101:61
103:47 106:1 107:7 108:85 109:957 110:600
111:708 112:304 113:404 114:535 115:668 116:957
117:693 118:797 119:1148 120:311 121:671 122:1626
123:962 124:1270 125:1217 128:261 129:173 130:164
131:570 132:109 133:19 134:213 135:48 136:214
137:145 138:300 139:109 140:481 141:239 142:404
143:406 144:487 145:54 146:447 147:211 148:595
149:244 150:172 151:185 152:328 153:179 154:3
155:397 156:195 157:352 158:138 159:380 160:317
161:207 162:281 163:165 164:501 165:354 166:515
167:427 168:728 169:155 170:801 171:77 172:1
173:1554 174:551 175:370 176:130 177:145 178:995
180:858 181:18 182:459 183:211 184:293 185:1
186:1215 187:771 188:849 189:897 190:4863 192:5849
193:4901 194:3494 195:2997 196:1220 197:19 198:3565
199:3923 200:5547 201:1484 202:8271 203:8390 204:4180
205:2310 206:2686 207:2875 208:3973 209:3476 210:2725
211:1398 212:1998 213:1723 214:730 215:72 216:4943
217:1638 218:546 219:363 220:1204 221:490 222:316
223:150
End of report
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