Routing Table Report 00:00 GMT Sun 17 Jul, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 369705
Prefixes after maximum aggregation: 166640
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180603
Total ASes present in the Internet Routing Table: 38228
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31744
Origin ASes announcing only one prefix: 15219
Transit ASes present in the Internet Routing Table: 5213
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3984
Unregistered ASNs in the Routing Table: 558
Number of 32-bit ASNs allocated by the RIRs: 1563
Number of 32-bit ASNs visible in the Routing Table: 1271
Prefixes from 32-bit ASNs in the Routing Table: 2937
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 125
Number of addresses announced to Internet: 2478846664
Equivalent to 147 /8s, 192 /16s and 50 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
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: 154006
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88746
Total APNIC prefixes after maximum aggregation: 29203
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 85458
Unique aggregates announced from the APNIC address blocks: 37453
APNIC Region origin ASes present in the Internet Routing Table: 4505
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 711
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 61
Number of APNIC addresses announced to Internet: 622205698
Equivalent to 37 /8s, 22 /16s and 27 /24s
Percentage of available APNIC address space announced: 78.9
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: 145082
Total ARIN prefixes after maximum aggregation: 74997
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116644
Unique aggregates announced from the ARIN address blocks: 46689
ARIN Region origin ASes present in the Internet Routing Table: 14485
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5522
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 31
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802493848
Equivalent to 47 /8s, 213 /16s and 21 /24s
Percentage of available ARIN address space announced: 63.8
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: 90043
Total RIPE prefixes after maximum aggregation: 49610
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82618
Unique aggregates announced from the RIPE address blocks: 52708
RIPE Region origin ASes present in the Internet Routing Table: 15833
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7842
RIPE Region transit ASes present in the Internet Routing Table: 2532
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 927
Number of RIPE addresses announced to Internet: 480191756
Equivalent to 28 /8s, 159 /16s and 37 /24s
Percentage of available RIPE address space announced: 77.4
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: 34207
Total LACNIC prefixes after maximum aggregation: 7621
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33325
Unique aggregates announced from the LACNIC address blocks: 17064
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 22.50
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 266
Number of LACNIC addresses announced to Internet: 86094600
Equivalent to 5 /8s, 33 /16s and 179 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8407
Total AfriNIC prefixes after maximum aggregation: 1970
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6507
Unique aggregates announced from the AfriNIC address blocks: 1985
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.90
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24368896
Equivalent to 1 /8s, 115 /16s and 215 /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 1914 11053 637 Korea Telecom (KIX)
7545 1552 301 84 TPG Internet Pty Ltd
17974 1539 456 45 PT TELEKOMUNIKASI INDONESIA
4755 1502 375 167 Videsh Sanchar Nigam Ltd. Aut
7552 1287 1064 7 Vietel Corporation
24560 1155 336 187 Bharti Airtel Ltd.
9829 1105 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
4808 1020 2059 288 CNCGROUP IP network: China169
17488 981 187 106 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3598 3818 241 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1809 681 121 AppliedTheory Corporation
4323 1652 1098 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
19262 1411 4744 391 Verizon Global Networks
7029 1380 991 212 Windstream Communications Inc
7018 1375 7085 901 AT&T WorldNet Services
22773 1351 2897 88 Cox Communications, Inc.
2386 1261 521 907 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1037 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 184 Tellcom Iletisim Hizmetleri
3292 523 2078 403 TDC Tele Danmark
6830 511 1780 315 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 457 593 7 Uni2 Autonomous System
8866 451 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1557 286 164 TVCABLE BOGOTA
8151 1461 2728 357 Uninet S.A. de C.V.
28573 1267 995 77 Types of queries are: POCs, o
7303 1009 512 177 Telecom Argentina Stet-France
6503 748 354 67 AVANTEL, S.A.
14420 690 55 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 531 230 94 COLOMBIA TELECOMUNICACIONES S
27947 521 54 48 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 793 147 34 LINKdotNET AS number
8452 781 445 11 TEDATA
15475 513 74 8 Nile Online
36992 313 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3598 3818 241 bellsouth.net, inc.
23456 2937 708 1576 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1914 11053 637 Korea Telecom (KIX)
1785 1809 681 121 AppliedTheory Corporation
4323 1652 1098 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1552 301 84 TPG Internet Pty Ltd
17974 1539 456 45 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 1957 1734 Covad Communications
1785 1809 1688 AppliedTheory Corporation
17974 1539 1494 PT TELEKOMUNIKASI INDONESIA
7545 1552 1468 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2937 1361 >>UNKNOWN<<
4755 1502 1335 Videsh Sanchar Nigam Ltd. Aut
7552 1287 1280 Vietel Corporation
4766 1914 1277 Korea Telecom (KIX)
22773 1351 1263 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/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 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
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/rviews/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 /10:26 /11:80 /12:232
/13:464 /14:801 /15:1424 /16:12126 /17:6135 /18:10119
/19:20032 /20:27219 /21:26779 /22:35314 /23:34303 /24:191605
/25:388 /26:354 /27:182 /28:366 /29:283 /30:703
/31:63 /32:675
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3598 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1442 2937 >>UNKNOWN<<
11492 1095 1141 Cable One
7029 1068 1380 Windstream Communications Inc
6478 1056 1085 AT&T Worldnet Services
7011 1056 1158 Citizens Utilities
1785 1053 1809 AppliedTheory Corporation
286 898 1037 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:330 2:67 4:20 5:1 6:3 8:339
12:1970 13:1 14:488 15:15 16:3 17:5
20:10 23:14 24:1684 27:828 31:505 32:135
33:4 34:2 36:4 38:747 40:104 41:2564
42:32 44:3 46:1047 47:3 49:201 50:393
52:13 54:2 55:4 56:2 57:45 58:865
59:479 60:386 61:1126 62:1057 63:1952 64:4011
65:2301 66:3932 67:1907 68:1281 69:3156 70:801
71:386 72:1920 73:1 74:2462 75:329 76:348
77:925 78:717 79:479 80:1128 81:881 82:515
83:460 84:702 85:1083 86:543 87:784 88:342
89:1578 90:215 91:3975 92:523 93:1069 94:1369
95:914 96:416 97:260 98:927 99:37 101:77
103:145 106:11 107:22 108:79 109:1031 110:616
111:713 112:305 113:409 114:559 115:687 116:994
117:689 118:832 119:1167 120:313 121:694 122:1608
123:973 124:1303 125:1276 128:247 129:174 130:169
131:577 132:111 133:21 134:214 135:48 136:216
137:137 138:297 139:129 140:480 141:244 142:406
143:416 144:484 145:55 146:453 147:226 148:672
149:248 150:160 151:189 152:342 153:182 154:4
155:397 156:199 157:353 158:138 159:454 160:313
161:202 162:309 163:160 164:499 165:397 166:531
167:435 168:736 169:154 170:852 171:78 172:1
173:1617 174:611 175:379 176:143 177:175 178:1012
180:903 181:24 182:497 183:231 184:345 185:1
186:1284 187:736 188:895 189:946 190:4999 192:5932
193:5013 194:3586 195:3196 196:1249 197:43 198:3593
199:3979 200:5555 201:1492 202:8422 203:8443 204:4228
205:2350 206:2736 207:2820 208:4108 209:3539 210:2695
211:1456 212:2156 213:1806 214:761 215:68 216:4992
217:1661 218:545 219:355 220:1235 221:498 222:337
223:216
End of report
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