Routing Table Report 00:00 GMT Mon 15 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: 371015
Prefixes after maximum aggregation: 167309
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182348
Total ASes present in the Internet Routing Table: 38468
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31938
Origin ASes announcing only one prefix: 15350
Transit ASes present in the Internet Routing Table: 5208
Transit-only ASes present in the Internet Routing Table: 151
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: 4196
Unregistered ASNs in the Routing Table: 622
Number of 32-bit ASNs allocated by the RIRs: 1646
Number of 32-bit ASNs visible in the Routing Table: 1322
Prefixes from 32-bit ASNs in the Routing Table: 3063
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2494054727
Equivalent to 148 /8s, 168 /16s and 65 /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: 153903
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90010
Total APNIC prefixes after maximum aggregation: 29320
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86607
Unique aggregates announced from the APNIC address blocks: 37715
APNIC Region origin ASes present in the Internet Routing Table: 4513
APNIC Prefixes per ASN: 19.19
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 711
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: 624340992
Equivalent to 37 /8s, 54 /16s and 176 /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: 145493
Total ARIN prefixes after maximum aggregation: 75205
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117045
Unique aggregates announced from the ARIN address blocks: 47037
ARIN Region origin ASes present in the Internet Routing Table: 14576
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5589
ARIN Region transit ASes present in the Internet Routing Table: 1513
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: 803267352
Equivalent to 47 /8s, 224 /16s and 227 /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: 89458
Total RIPE prefixes after maximum aggregation: 49784
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81918
Unique aggregates announced from the RIPE address blocks: 53334
RIPE Region origin ASes present in the Internet Routing Table: 15878
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7900
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 953
Number of RIPE addresses announced to Internet: 487575500
Equivalent to 29 /8s, 15 /16s and 207 /24s
Percentage of available RIPE address space announced: 78.5
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: 34372
Total LACNIC prefixes after maximum aggregation: 7587
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 33559
Unique aggregates announced from the LACNIC address blocks: 17275
LACNIC Region origin ASes present in the Internet Routing Table: 1495
LACNIC Prefixes per ASN: 22.45
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 276
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: 284
Number of LACNIC addresses announced to Internet: 87476544
Equivalent to 5 /8s, 54 /16s and 201 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8400
Total AfriNIC prefixes after maximum aggregation: 2035
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6533
Unique aggregates announced from the AfriNIC address blocks: 2034
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 107
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: 26925312
Equivalent to 1 /8s, 154 /16s and 217 /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 1929 11038 644 Korea Telecom (KIX)
17974 1888 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1567 301 84 TPG Internet Pty Ltd
4755 1532 375 168 Videsh Sanchar Nigam Ltd. Aut
7552 1408 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
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 229 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1819 681 124 AppliedTheory Corporation
4323 1618 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.
19262 1405 4778 395 Verizon Global Networks
7018 1371 7085 899 AT&T WorldNet Services
2386 1250 517 900 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 1035 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 512 1788 316 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
8866 454 133 26 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
3320 423 8150 369 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 1434 2737 357 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1066 578 174 Telecom Argentina Stet-France
6503 750 450 77 AVANTEL, S.A.
14420 705 56 85 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 516 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 681 445 11 TEDATA
15475 511 74 8 Nile Online
36992 308 417 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 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 229 bellsouth.net, inc.
23456 3063 730 1646 >>UNKNOWN<<
4766 1929 11038 644 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1888 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1819 681 124 AppliedTheory Corporation
4323 1618 1102 402 Time Warner Telecom
7029 1609 1029 207 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1574 290 165 TVCABLE BOGOTA
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 1888 1857 PT TELEKOMUNIKASI INDONESIA
1785 1819 1695 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1567 1483 TPG Internet Pty Ltd
23456 3063 1417 >>UNKNOWN<<
10620 1574 1409 TVCABLE BOGOTA
7029 1609 1402 Windstream Communications Inc
7552 1408 1401 Vietel Corporation
4755 1532 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1409 1316 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 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 /14:806 /15:1439 /16:12151 /17:6153 /18:10194
/19:20046 /20:27635 /21:26997 /22:35742 /23:34677 /24:192604
/25:83 /26:86 /27:110 /28:277 /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 1505 3063 >>UNKNOWN<<
10620 1469 1574 TVCABLE BOGOTA
7029 1295 1609 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1159 Citizens Utilities
1785 1051 1819 AppliedTheory Corporation
22773 905 1409 Cox Communications, Inc.
30036 898 920 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 14:512 15:15 16:3 17:5
20:10 23:19 24:1691 27:875 31:522 32:149
33:4 34:2 36:4 38:735 40:107 41:2526
42:43 44:3 46:1073 47:3 49:219 50:395
52:13 54:2 55:4 56:2 57:45 58:870
59:498 60:379 61:1173 62:1080 63:1953 64:4050
65:2302 66:3961 67:1946 68:1286 69:3199 70:825
71:373 72:1878 73:1 74:2482 75:341 76:350
77:866 78:708 79:470 80:1132 81:830 82:504
83:471 84:693 85:1081 86:533 87:841 88:341
89:1556 90:224 91:4039 92:527 93:1128 94:1347
95:871 96:422 97:266 98:937 99:37 101:79
103:189 106:69 107:31 108:80 109:1023 110:632
111:733 112:310 113:406 114:561 115:695 116:1006
117:682 118:869 119:1189 120:315 121:705 122:1590
123:985 124:1312 125:1341 128:243 129:177 130:172
131:566 132:114 133:21 134:214 135:52 136:216
137:139 138:295 139:129 140:479 141:273 142:385
143:420 144:484 145:58 146:461 147:226 148:694
149:252 150:161 151:190 152:440 153:182 154:5
155:399 156:199 157:332 158:137 159:456 160:318
161:207 162:312 163:163 164:515 165:397 166:536
167:433 168:747 169:154 170:843 171:81 172:1
173:1656 174:625 175:392 176:148 177:208 178:1005
180:929 181:26 182:508 183:241 184:365 185:1
186:1364 187:744 188:907 189:929 190:5072 192:5944
193:4984 194:3549 195:3132 196:1219 197:123 198:3585
199:4043 200:5507 201:1478 202:8407 203:8480 204:4265
205:2333 206:2734 207:2805 208:4128 209:3503 210:2701
211:1464 212:2134 213:1777 214:765 215:70 216:4937
217:1618 218:548 219:355 220:1225 221:514 222:360
223:236
End of report
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