Routing Table Report 00:00 GMT Tue 20 Mar, 2012
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: 405245
Prefixes after maximum aggregation: 172442
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195066
Total ASes present in the Internet Routing Table: 40471
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32924
Origin ASes announcing only one prefix: 15522
Transit ASes present in the Internet Routing Table: 5436
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5671
Unregistered ASNs in the Routing Table: 237
Number of 32-bit ASNs allocated by the RIRs: 2323
Number of 32-bit ASNs visible in the Routing Table: 2111
Prefixes from 32-bit ASNs in the Routing Table: 5157
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 780
Number of addresses announced to Internet: 2527389141
Equivalent to 150 /8s, 164 /16s and 229 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 170761
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96362
Total APNIC prefixes after maximum aggregation: 30906
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 92853
Unique aggregates announced from the APNIC address blocks: 39298
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 737
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 167
Number of APNIC addresses announced to Internet: 640765696
Equivalent to 38 /8s, 49 /16s and 79 /24s
Percentage of available APNIC address space announced: 81.3
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: 151640
Total ARIN prefixes after maximum aggregation: 77927
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122961
Unique aggregates announced from the ARIN address blocks: 49888
ARIN Region origin ASes present in the Internet Routing Table: 14973
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5685
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 806674944
Equivalent to 48 /8s, 20 /16s and 226 /24s
Percentage of available ARIN address space announced: 64.1
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: 103176
Total RIPE prefixes after maximum aggregation: 53206
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 93767
Unique aggregates announced from the RIPE address blocks: 57097
RIPE Region origin ASes present in the Internet Routing Table: 16367
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2633
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1435
Number of RIPE addresses announced to Internet: 502296204
Equivalent to 29 /8s, 240 /16s and 110 /24s
Percentage of available RIPE address space announced: 80.9
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: 39600
Total LACNIC prefixes after maximum aggregation: 8109
LACNIC Deaggregation factor: 4.88
Prefixes being announced from the LACNIC address blocks: 39320
Unique aggregates announced from the LACNIC address blocks: 19633
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 25.01
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 293
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 488
Number of LACNIC addresses announced to Internet: 98507784
Equivalent to 5 /8s, 223 /16s and 28 /24s
Percentage of available LACNIC address space announced: 65.2
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: 8946
Total AfriNIC prefixes after maximum aggregation: 2128
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 7049
Unique aggregates announced from the AfriNIC address blocks: 2185
AfriNIC Region origin ASes present in the Internet Routing Table: 528
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31518208
Equivalent to 1 /8s, 224 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1933 11102 681 Korea Telecom (KIX)
17974 1739 500 61 PT TELEKOMUNIKASI INDONESIA
7545 1648 303 88 TPG Internet Pty Ltd
4755 1569 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1224 94 530 Sify Limited
9829 1188 1001 30 BSNL National Internet Backbo
7552 1165 1062 11 Vietel Corporation
24560 1015 384 166 Bharti Airtel Ltd.
18101 948 130 160 Reliance Infocom Ltd Internet
4808 926 1875 268 CNCGROUP IP network: China169
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
7029 3389 1007 168 Windstream Communications Inc
6389 3375 3807 198 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1879 680 127 AppliedTheory Corporation
20115 1631 1558 629 Charter Communications
4323 1568 1057 365 Time Warner Telecom
22773 1547 2910 111 Cox Communications, Inc.
30036 1398 252 744 Mediacom Communications Corp
7018 1276 13744 836 AT&T WorldNet Services
11492 1164 212 415 Cable One
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 1812 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
286 1071 854 202 KPNQwest Backbone AS
34984 664 188 172 Tellcom Iletisim Hizmetleri
6830 642 1943 413 UPC Distribution Services
12479 638 653 67 Uni2 Autonomous System
20940 617 200 487 Akamai Technologies European
8551 600 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1801 329 130 TVCABLE BOGOTA
28573 1707 1094 58 Types of queries are: POCs, o
8151 1517 2999 332 Uninet S.A. de C.V.
7303 1331 823 185 Telecom Argentina Stet-France
26615 900 676 31 Types of queries are: POCs, o
27947 681 68 108 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 566 418 66 AVANTEL, S.A.
3816 562 240 90 COLOMBIA TELECOMUNICACIONES S
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 1261 958 13 TEDATA
24863 834 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 177 80 8 RAYA Telecom - Egypt
15399 168 29 12 Wananchi Online Limited
33776 162 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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
7029 3389 1007 168 Windstream Communications Inc
6389 3375 3807 198 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
4766 1933 11102 681 Korea Telecom (KIX)
1785 1879 680 127 AppliedTheory Corporation
8402 1812 544 16 Corbina telecom
10620 1801 329 130 TVCABLE BOGOTA
17974 1739 500 61 PT TELEKOMUNIKASI INDONESIA
28573 1707 1094 58 Types of queries are: POCs, o
7545 1648 303 88 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
6389 3375 3177 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1812 1796 Corbina telecom
1785 1879 1752 AppliedTheory Corporation
17974 1739 1678 PT TELEKOMUNIKASI INDONESIA
10620 1801 1671 TVCABLE BOGOTA
28573 1707 1649 Types of queries are: POCs, o
7545 1648 1560 TPG Internet Pty Ltd
22773 1547 1436 Cox Communications, Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /10:28 /11:81 /12:235
/13:458 /14:826 /15:1506 /16:12324 /17:6510 /18:10839
/19:21067 /20:29804 /21:29981 /22:40409 /23:37834 /24:211685
/25:69 /26:75 /27:110 /28:275 /29:106 /30:510
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3045 3389 Windstream Communications Inc
6389 2090 3375 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1789 1812 Corbina telecom
10620 1698 1801 TVCABLE BOGOTA
30036 1347 1398 Mediacom Communications Corp
11492 1127 1164 Cable One
8452 1071 1261 TEDATA
1785 1062 1879 AppliedTheory Corporation
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:533 2:797 4:18 6:3 8:396 12:1977
13:1 14:604 15:12 16:3 17:7 20:8
23:144 24:1760 27:1237 31:955 32:124 33:2
34:2 36:8 37:288 38:782 39:4 40:122
41:3141 42:129 44:3 46:1465 47:3 49:347
50:518 52:13 54:5 55:8 56:3 57:46
58:962 59:494 60:278 61:1207 62:986 63:2033
64:4196 65:2285 66:4530 67:2040 68:1343 69:3291
70:946 71:389 72:1810 73:1 74:2639 75:502
76:331 77:968 78:984 79:510 80:1245 81:909
82:661 83:558 84:609 85:1192 86:736 87:913
88:337 89:1576 90:288 91:4632 92:520 93:1502
94:1416 95:1128 96:377 97:316 98:830 99:38
100:6 101:202 103:920 106:64 107:173 108:210
109:1552 110:759 111:880 112:445 113:562 114:642
115:778 116:881 117:722 118:919 119:1207 120:340
121:719 122:1652 123:1084 124:1368 125:1278 128:548
129:193 130:265 131:594 132:170 133:21 134:243
135:63 136:212 137:186 138:275 139:157 140:492
141:241 142:392 143:433 144:499 145:69 146:489
147:253 148:755 149:296 150:156 151:174 152:457
153:171 154:7 155:442 156:213 157:381 158:163
159:519 160:325 161:250 162:343 163:186 164:535
165:413 166:563 167:462 168:801 169:149 170:842
171:121 172:4 173:1735 174:595 175:444 176:458
177:580 178:1293 180:1145 181:73 182:770 183:276
184:449 185:1 186:2116 187:848 188:1063 189:1191
190:5526 192:6019 193:5623 194:4595 195:3687 196:1291
197:186 198:3634 199:4480 200:5766 201:1651 202:8463
203:8623 204:4360 205:2469 206:2762 207:2804 208:4100
209:3632 210:2782 211:1477 212:2034 213:1917 214:864
215:108 216:5069 217:1527 218:539 219:353 220:1237
221:553 222:330 223:325
End of report