Routing Table Report 00:00 GMT Tue 20 Dec, 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: 390536
Prefixes after maximum aggregation: 169244
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 189324
Total ASes present in the Internet Routing Table: 39614
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32545
Origin ASes announcing only one prefix: 15519
Transit ASes present in the Internet Routing Table: 5306
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 27
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 6194
Unregistered ASNs in the Routing Table: 1013
Number of 32-bit ASNs allocated by the RIRs: 2106
Number of 32-bit ASNs visible in the Routing Table: 1763
Prefixes from 32-bit ASNs in the Routing Table: 4210
Special use prefixes present in the Routing Table: 90
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2503190582
Equivalent to 149 /8s, 51 /16s and 168 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 163651
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93870
Total APNIC prefixes after maximum aggregation: 30215
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90292
Unique aggregates announced from the APNIC address blocks: 38539
APNIC Region origin ASes present in the Internet Routing Table: 4594
APNIC Prefixes per ASN: 19.65
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 739
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 121
Number of APNIC addresses announced to Internet: 632019968
Equivalent to 37 /8s, 171 /16s and 220 /24s
Percentage of available APNIC address space announced: 80.2
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: 149349
Total ARIN prefixes after maximum aggregation: 77017
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121199
Unique aggregates announced from the ARIN address blocks: 48764
ARIN Region origin ASes present in the Internet Routing Table: 14815
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5652
ARIN Region transit ASes present in the Internet Routing Table: 1525
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804622856
Equivalent to 47 /8s, 245 /16s and 146 /24s
Percentage of available ARIN address space announced: 63.9
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: 97034
Total RIPE prefixes after maximum aggregation: 51814
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 88300
Unique aggregates announced from the RIPE address blocks: 55138
RIPE Region origin ASes present in the Internet Routing Table: 16198
RIPE Prefixes per ASN: 5.45
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2575
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1229
Number of RIPE addresses announced to Internet: 494679756
Equivalent to 29 /8s, 124 /16s and 54 /24s
Percentage of available RIPE address space announced: 79.7
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: 37357
Total LACNIC prefixes after maximum aggregation: 8039
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36791
Unique aggregates announced from the LACNIC address blocks: 18902
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.64
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 395
Number of LACNIC addresses announced to Internet: 94848776
Equivalent to 5 /8s, 167 /16s and 71 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8493
Total AfriNIC prefixes after maximum aggregation: 2089
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 6531
Unique aggregates announced from the AfriNIC address blocks: 2069
AfriNIC Region origin ASes present in the Internet Routing Table: 505
AfriNIC Prefixes per ASN: 12.93
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30847488
Equivalent to 1 /8s, 214 /16s and 178 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1919 11095 655 Korea Telecom (KIX)
17974 1643 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1515 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1443 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1035 2009 290 CNCGROUP IP network: China169
24560 996 385 167 Bharti Airtel Ltd.
18101 969 130 156 Reliance Infocom Ltd Internet
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 3475 3814 221 bellsouth.net, inc.
7029 2957 1046 214 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1859 681 122 AppliedTheory Corporation
4323 1612 1081 384 Time Warner Telecom
20115 1605 1550 625 Charter Communications
22773 1513 2909 105 Cox Communications, Inc.
30036 1452 259 678 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1311 7030 861 AT&T WorldNet Services
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
8402 1593 480 15 Corbina telecom
286 1097 807 199 KPNQwest Backbone AS
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1092 2161 64 LDCOM NETWORKS
6830 646 1927 412 UPC Distribution Services
34984 626 132 195 Tellcom Iletisim Hizmetleri
20940 555 179 443 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
12479 541 630 48 Uni2 Autonomous System
3292 531 2106 407 TDC Tele Danmark
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 1718 318 156 TVCABLE BOGOTA
28573 1567 1064 75 Types of queries are: POCs, o
8151 1502 2986 346 Uninet S.A. de C.V.
7303 1246 752 176 Telecom Argentina Stet-France
27947 632 73 93 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 551 434 70 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 COLOMBIA TELECOMUNICACIONES S
10481 547 429 25 Prima 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
8452 1030 958 13 TEDATA
24863 788 146 34 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 204 11 11 Starcomms Nigeria Limited
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3475 3814 221 bellsouth.net, inc.
7029 2957 1046 214 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1919 11095 655 Korea Telecom (KIX)
1785 1859 681 122 AppliedTheory Corporation
10620 1718 318 156 TVCABLE BOGOTA
17974 1643 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1612 1081 384 Time Warner Telecom
20115 1605 1550 625 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2957 2743 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1859 1737 AppliedTheory Corporation
17974 1643 1605 PT TELEKOMUNIKASI INDONESIA
8402 1593 1578 Corbina telecom
10620 1718 1562 TVCABLE BOGOTA
7545 1626 1540 TPG Internet Pty Ltd
28573 1567 1492 Types of queries are: POCs, o
7552 1443 1436 Vietel Corporation
22773 1513 1408 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
65200 PRIVATE 10.121.254.0/28 286 KPNQwest Backbone AS
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 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
10.0.1.0/24 286 KPNQwest Backbone AS
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
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.17.0.0/17 42772 FE VELCOM AS
37.17.208.0/20 28878 Signet B.V.
37.17.232.0/21 13030 INIT7 Autonomous System
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
64.21.192.0/20 11610 Internet Nebraska
64.21.212.0/22 11610 Internet Nebraska
64.21.216.0/21 11610 Internet Nebraska
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 /8:19 /9:12 /10:27 /11:81 /12:237
/13:465 /14:819 /15:1474 /16:12208 /17:6379 /18:10495
/19:20642 /20:29105 /21:28548 /22:38562 /23:36322 /24:203384
/25:69 /26:85 /27:110 /28:293 /29:114 /30:548
/31:51 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2567 2957 Windstream Communications Inc
6389 2119 3475 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1613 1718 TVCABLE BOGOTA
8402 1571 1593 Corbina telecom
30036 1412 1452 Mediacom Communications Corp
11492 1114 1151 Cable One
1785 1059 1859 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:457 2:439 4:19 5:1 6:3 8:363
10:1 12:1945 13:1 14:564 15:11 16:3
17:7 20:9 23:75 24:1718 27:1128 31:736
32:122 33:2 34:2 36:4 38:778 39:1
40:114 41:2972 42:80 43:1 44:3 46:1142
47:3 49:281 50:472 52:13 55:5 56:2
57:54 58:959 59:485 60:344 61:1190 62:955
63:1981 64:4131 65:2305 66:4397 67:2036 68:1354
69:3239 70:966 71:378 72:1810 73:1 74:2697
75:445 76:333 77:941 78:858 79:449 80:1173
81:853 82:548 83:535 84:580 85:1165 86:751
87:913 88:347 89:1603 90:249 91:4364 92:542
93:1516 94:1331 95:1053 96:400 97:286 98:778
99:38 100:1 101:253 103:577 106:11 107:114
108:103 109:1407 110:699 111:822 112:380 113:514
114:604 115:715 116:909 117:732 118:900 119:1265
120:356 121:692 122:1559 123:1029 124:1361 125:1342
128:535 129:191 130:186 131:585 132:161 133:21
134:226 135:54 136:213 137:151 138:286 139:134
140:493 141:255 142:383 143:385 144:501 145:67
146:473 147:233 148:687 149:268 150:164 151:192
152:446 153:169 154:7 155:397 156:210 157:368
158:155 159:501 160:342 161:221 162:363 163:185
164:521 165:413 166:543 167:457 168:820 169:147
170:828 171:95 172:4 173:1808 174:600 175:438
176:316 177:448 178:1137 180:1157 181:39 182:675
183:260 184:403 185:1 186:1418 187:781 188:956
189:1168 190:5293 192:6007 193:5213 194:4320 195:3416
196:1297 197:174 198:3639 199:4241 200:5519 201:1719
202:8592 203:8540 204:4352 205:2422 206:2694 207:2847
208:4034 209:3594 210:2770 211:1483 212:1975 213:1797
214:805 215:93 216:4954 217:1506 218:573 219:337
220:1263 221:528 222:325 223:266
End of report
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