Routing Table Report 00:00 GMT Tue 16 Aug, 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: 370794
Prefixes after maximum aggregation: 167464
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182438
Total ASes present in the Internet Routing Table: 38504
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31956
Origin ASes announcing only one prefix: 15374
Transit ASes present in the Internet Routing Table: 5224
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4188
Unregistered ASNs in the Routing Table: 628
Number of 32-bit ASNs allocated by the RIRs: 1647
Number of 32-bit ASNs visible in the Routing Table: 1324
Prefixes from 32-bit ASNs in the Routing Table: 3058
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2494404871
Equivalent to 148 /8s, 173 /16s and 153 /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: 91.2
Total number of prefixes smaller than registry allocations: 153667
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89919
Total APNIC prefixes after maximum aggregation: 29366
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 86522
Unique aggregates announced from the APNIC address blocks: 37748
APNIC Region origin ASes present in the Internet Routing Table: 4514
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 716
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: 69
Number of APNIC addresses announced to Internet: 624248576
Equivalent to 37 /8s, 53 /16s and 71 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 145236
Total ARIN prefixes after maximum aggregation: 75258
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116771
Unique aggregates announced from the ARIN address blocks: 47023
ARIN Region origin ASes present in the Internet Routing Table: 14591
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5605
ARIN Region transit ASes present in the Internet Routing Table: 1511
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803378456
Equivalent to 47 /8s, 226 /16s and 149 /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: 89514
Total RIPE prefixes after maximum aggregation: 49807
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81986
Unique aggregates announced from the RIPE address blocks: 53357
RIPE Region origin ASes present in the Internet Routing Table: 15894
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7912
RIPE Region transit ASes present in the Internet Routing Table: 2523
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 954
Number of RIPE addresses announced to Internet: 487744204
Equivalent to 29 /8s, 18 /16s and 98 /24s
Percentage of available RIPE address space announced: 78.6
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: 34433
Total LACNIC prefixes after maximum aggregation: 7615
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 33602
Unique aggregates announced from the LACNIC address blocks: 17286
LACNIC Region origin ASes present in the Internet Routing Table: 1499
LACNIC Prefixes per ASN: 22.42
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 285
Number of LACNIC addresses announced to Internet: 87507456
Equivalent to 5 /8s, 55 /16s and 66 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8419
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6552
Unique aggregates announced from the AfriNIC address blocks: 2041
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26925824
Equivalent to 1 /8s, 154 /16s and 219 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1935 11038 648 Korea Telecom (KIX)
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 85 TPG Internet Pty Ltd
4755 1532 375 168 Videsh Sanchar Nigam Ltd. Aut
24560 1198 336 187 Bharti Airtel Ltd.
7552 1166 1062 11 Vietel Corporation
9829 1128 963 42 BSNL National Internet Backbo
9583 1071 78 493 Sify Limited
4808 1036 2085 295 CNCGROUP IP network: China169
17488 1012 187 131 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 3586 3817 233 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1821 681 124 AppliedTheory Corporation
4323 1617 1102 402 Time Warner Telecom
7029 1609 1029 207 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications, Inc.
7018 1367 7085 896 AT&T WorldNet Services
2386 1248 517 899 AT&T Data Communications Serv
7011 1160 280 626 Citizens Utilities
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 1034 797 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 185 Tellcom Iletisim Hizmetleri
3292 522 2080 406 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 455 133 26 Bulgarian Telecommunication C
3320 424 8151 370 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
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 1574 290 165 TVCABLE BOGOTA
8151 1438 2737 356 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1066 578 176 Telecom Argentina Stet-France
6503 752 450 77 AVANTEL, S.A.
14420 704 56 90 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 533 232 97 COLOMBIA TELECOMUNICACIONES S
27947 518 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 806 147 42 LINKdotNET AS number
8452 680 445 11 TEDATA
15475 512 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 253 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt
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 3586 3817 233 bellsouth.net, inc.
23456 3058 731 1649 >>UNKNOWN<<
4766 1935 11038 648 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1821 681 124 AppliedTheory Corporation
4323 1617 1102 402 Time Warner Telecom
7029 1609 1029 207 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
7545 1574 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1909 1878 PT TELEKOMUNIKASI INDONESIA
1785 1821 1697 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1574 1489 TPG Internet Pty Ltd
23456 3058 1409 >>UNKNOWN<<
10620 1574 1409 TVCABLE BOGOTA
7029 1609 1402 Windstream Communications Inc
4755 1532 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1409 1316 Cox Communications, Inc.
4766 1935 1287 Korea Telecom (KIX)
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 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/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 /10:27 /11:81 /12:233
/13:466 /14:804 /15:1442 /16:12173 /17:6154 /18:10210
/19:20049 /20:27659 /21:26969 /22:35629 /23:34714 /24:192419
/25:81 /26:86 /27:110 /28:280 /29:71 /30:528
/31:91 /32:486
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3586 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1503 3058 >>UNKNOWN<<
10620 1469 1574 TVCABLE BOGOTA
7029 1295 1609 Windstream Communications Inc
11492 1095 1141 Cable One
7011 1057 1160 Citizens Utilities
1785 1053 1821 AppliedTheory Corporation
22773 905 1409 Cox Communications, Inc.
30036 900 922 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:354 2:46 4:19 5:1 6:3 8:341
12:1964 13:1 14:514 15:15 16:3 17:5
20:10 23:19 24:1691 27:871 31:514 32:149
33:4 34:2 36:4 38:736 40:107 41:2540
42:45 44:3 46:1071 47:3 49:219 50:396
52:13 54:2 55:7 56:2 57:45 58:871
59:499 60:379 61:1194 62:1110 63:1953 64:4053
65:2302 66:3962 67:1942 68:1286 69:3199 70:793
71:262 72:1832 73:1 74:2417 75:341 76:349
77:864 78:710 79:487 80:1130 81:829 82:503
83:471 84:693 85:1080 86:533 87:841 88:342
89:1552 90:224 91:4051 92:527 93:1129 94:1348
95:871 96:374 97:266 98:936 99:37 101:79
103:190 106:69 107:31 108:64 109:1014 110:634
111:732 112:310 113:412 114:563 115:684 116:1007
117:665 118:872 119:1184 120:315 121:706 122:1605
123:985 124:1310 125:1299 128:247 129:177 130:171
131:579 132:116 133:21 134:214 135:52 136:216
137:140 138:296 139:129 140:488 141:246 142:385
143:420 144:490 145:58 146:461 147:226 148:694
149:253 150:162 151:168 152:440 153:182 154:5
155:401 156:199 157:332 158:138 159:456 160:318
161:208 162:328 163:164 164:515 165:397 166:537
167:434 168:747 169:154 170:847 171:81 172:1
173:1658 174:623 175:392 176:148 177:202 178:1004
180:932 181:24 182:525 183:240 184:365 185:1
186:1363 187:745 188:909 189:929 190:5084 192:5952
193:4995 194:3550 195:3109 196:1220 197:124 198:3596
199:4048 200:5513 201:1477 202:8429 203:8485 204:4260
205:2337 206:2736 207:2799 208:4126 209:3501 210:2708
211:1464 212:2127 213:1781 214:776 215:70 216:4939
217:1617 218:554 219:355 220:1231 221:515 222:360
223:236
End of report
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