Routing Table Report 00:00 GMT Mon 18 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: 369547
Prefixes after maximum aggregation: 166622
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180509
Total ASes present in the Internet Routing Table: 38227
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31803
Origin ASes announcing only one prefix: 15222
Transit ASes present in the Internet Routing Table: 5151
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3978
Unregistered ASNs in the Routing Table: 560
Number of 32-bit ASNs allocated by the RIRs: 1564
Number of 32-bit ASNs visible in the Routing Table: 1273
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: 123
Number of addresses announced to Internet: 2478778312
Equivalent to 147 /8s, 191 /16s and 39 /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: 153978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88603
Total APNIC prefixes after maximum aggregation: 29193
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 85311
Unique aggregates announced from the APNIC address blocks: 37440
APNIC Region origin ASes present in the Internet Routing Table: 4505
APNIC Prefixes per ASN: 18.94
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.3
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: 622106626
Equivalent to 37 /8s, 20 /16s and 152 /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: 145113
Total ARIN prefixes after maximum aggregation: 74979
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116680
Unique aggregates announced from the ARIN address blocks: 46685
ARIN Region origin ASes present in the Internet Routing Table: 14490
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5526
ARIN Region transit ASes present in the Internet Routing Table: 1496
Average ARIN Region AS path length visible: 3.6
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: 802482584
Equivalent to 47 /8s, 212 /16s and 233 /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: 90011
Total RIPE prefixes after maximum aggregation: 49588
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82604
Unique aggregates announced from the RIPE address blocks: 52662
RIPE Region origin ASes present in the Internet Routing Table: 15825
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2500
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: 929
Number of RIPE addresses announced to Internet: 480154380
Equivalent to 28 /8s, 158 /16s and 147 /24s
Percentage of available RIPE address space announced: 77.3
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: 34229
Total LACNIC prefixes after maximum aggregation: 7651
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33349
Unique aggregates announced from the LACNIC address blocks: 17066
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 22.52
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 266
Number of LACNIC addresses announced to Internet: 86080008
Equivalent to 5 /8s, 33 /16s and 122 /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: 8378
Total AfriNIC prefixes after maximum aggregation: 1972
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6481
Unique aggregates announced from the AfriNIC address blocks: 1970
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.2
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: 24397056
Equivalent to 1 /8s, 116 /16s and 69 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1915 11069 638 Korea Telecom (KIX)
7545 1553 301 85 TPG Internet Pty Ltd
4755 1502 375 167 Videsh Sanchar Nigam Ltd. Aut
17974 1454 455 46 PT TELEKOMUNIKASI INDONESIA
7552 1287 1064 7 Vietel Corporation
24560 1155 336 187 Bharti Airtel Ltd.
9829 1106 923 47 BSNL National Internet Backbo
9583 1060 77 501 Sify Limited
4808 1015 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 3597 3818 241 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1810 681 121 AppliedTheory Corporation
4323 1656 1098 400 Time Warner Telecom
20115 1595 1534 627 Charter Communications
19262 1411 4744 391 Verizon Global Networks
7029 1387 1031 207 Windstream Communications Inc
7018 1376 7086 902 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 1030 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 458 593 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 1460 2728 356 Uninet S.A. de C.V.
28573 1272 993 91 Types of queries are: POCs, o
7303 1009 512 177 Telecom Argentina Stet-France
6503 759 354 75 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 792 147 35 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 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 159 17 12 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 3597 3818 241 bellsouth.net, inc.
23456 2937 708 1576 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1915 11069 638 Korea Telecom (KIX)
1785 1810 681 121 AppliedTheory Corporation
4323 1656 1098 400 Time Warner Telecom
20115 1595 1534 627 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1553 301 85 TPG Internet Pty Ltd
4755 1502 375 167 Videsh Sanchar Nigam Ltd. Aut
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 1810 1689 AppliedTheory Corporation
7545 1553 1468 TPG Internet Pty Ltd
17974 1454 1408 PT TELEKOMUNIKASI INDONESIA
10620 1557 1393 TVCABLE BOGOTA
23456 2937 1361 >>UNKNOWN<<
4755 1502 1335 Videsh Sanchar Nigam Ltd. Aut
7552 1287 1280 Vietel Corporation
4766 1915 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 /8:21 /9:12 /10:26 /11:80 /12:232
/13:464 /14:801 /15:1424 /16:12127 /17:6136 /18:10117
/19:20036 /20:27230 /21:26757 /22:35290 /23:34252 /24:191536
/25:390 /26:354 /27:183 /28:365 /29:282 /30:699
/31:63 /32:670
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3597 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1442 2937 >>UNKNOWN<<
11492 1095 1141 Cable One
7029 1071 1387 Windstream Communications Inc
6478 1056 1085 AT&T Worldnet Services
7011 1056 1158 Citizens Utilities
1785 1054 1810 AppliedTheory Corporation
286 891 1030 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 2:69 4:20 5:1 6:3 8:339
12:1969 13:1 14:485 15:15 16:3 17:5
20:10 23:14 24:1684 27:828 31:505 32:135
33:4 34:2 36:4 38:748 40:104 41:2566
42:32 44:3 46:1048 47:3 49:201 50:393
52:13 54:2 55:5 56:2 57:45 58:864
59:480 60:387 61:1124 62:1057 63:1953 64:4018
65:2299 66:3935 67:1907 68:1281 69:3157 70:801
71:386 72:1920 73:1 74:2465 75:329 76:349
77:927 78:717 79:478 80:1126 81:879 82:516
83:460 84:702 85:1081 86:541 87:785 88:342
89:1570 90:224 91:3980 92:522 93:1065 94:1368
95:914 96:416 97:261 98:927 99:37 101:77
103:145 106:11 107:22 108:79 109:1029 110:616
111:710 112:305 113:400 114:558 115:686 116:994
117:688 118:823 119:1172 120:313 121:693 122:1608
123:971 124:1302 125:1266 128:243 129:174 130:169
131:576 132:111 133:21 134:213 135:48 136:216
137:137 138:297 139:129 140:480 141:244 142:406
143:416 144:480 145:55 146:452 147:226 148:672
149:248 150:160 151:189 152:342 153:182 154:4
155:397 156:199 157:353 158:138 159:454 160:314
161:202 162:310 163:159 164:499 165:397 166:531
167:435 168:736 169:154 170:848 171:78 172:1
173:1617 174:612 175:379 176:143 177:173 178:1018
180:904 181:24 182:496 183:231 184:346 185:1
186:1284 187:738 188:893 189:946 190:5003 192:5931
193:5017 194:3585 195:3192 196:1245 197:43 198:3593
199:3980 200:5566 201:1492 202:8402 203:8442 204:4226
205:2348 206:2736 207:2819 208:4109 209:3541 210:2694
211:1456 212:2126 213:1810 214:760 215:69 216:4998
217:1665 218:545 219:354 220:1235 221:495 222:333
223:216
End of report
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