Routing Table Report 00:00 GMT Wed 07 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: 403355
Prefixes after maximum aggregation: 171956
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194585
Total ASes present in the Internet Routing Table: 40328
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32804
Origin ASes announcing only one prefix: 15532
Transit ASes present in the Internet Routing Table: 5466
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 27
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5421
Unregistered ASNs in the Routing Table: 192
Number of 32-bit ASNs allocated by the RIRs: 2310
Number of 32-bit ASNs visible in the Routing Table: 2058
Prefixes from 32-bit ASNs in the Routing Table: 4932
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 499
Number of addresses announced to Internet: 2526054361
Equivalent to 150 /8s, 144 /16s and 135 /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: 169944
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96454
Total APNIC prefixes after maximum aggregation: 30903
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 92910
Unique aggregates announced from the APNIC address blocks: 39453
APNIC Region origin ASes present in the Internet Routing Table: 4648
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1246
APNIC Region transit ASes present in the Internet Routing Table: 748
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 161
Number of APNIC addresses announced to Internet: 640993024
Equivalent to 38 /8s, 52 /16s and 199 /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: 151470
Total ARIN prefixes after maximum aggregation: 77758
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122839
Unique aggregates announced from the ARIN address blocks: 49743
ARIN Region origin ASes present in the Internet Routing Table: 14961
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5688
ARIN Region transit ASes present in the Internet Routing Table: 1569
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 806658048
Equivalent to 48 /8s, 20 /16s and 160 /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: 102072
Total RIPE prefixes after maximum aggregation: 52969
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 92731
Unique aggregates announced from the RIPE address blocks: 56822
RIPE Region origin ASes present in the Internet Routing Table: 16340
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2638
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1406
Number of RIPE addresses announced to Internet: 501754764
Equivalent to 29 /8s, 232 /16s and 43 /24s
Percentage of available RIPE address space announced: 80.8
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: 39345
Total LACNIC prefixes after maximum aggregation: 8103
LACNIC Deaggregation factor: 4.86
Prefixes being announced from the LACNIC address blocks: 39045
Unique aggregates announced from the LACNIC address blocks: 19661
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.81
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 472
Number of LACNIC addresses announced to Internet: 97958920
Equivalent to 5 /8s, 214 /16s and 188 /24s
Percentage of available LACNIC address space announced: 64.9
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: 8748
Total AfriNIC prefixes after maximum aggregation: 2109
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6842
Unique aggregates announced from the AfriNIC address blocks: 2162
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.13
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 122
Average AfriNIC Region AS path length visible: 4.7
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: 31553280
Equivalent to 1 /8s, 225 /16s and 119 /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 1921 11099 673 Korea Telecom (KIX)
17974 1733 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1644 303 88 TPG Internet Pty Ltd
4755 1569 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1199 91 508 Sify Limited
9829 1183 997 29 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
24560 1013 385 167 Bharti Airtel Ltd.
18101 949 130 155 Reliance Infocom Ltd Internet
4808 921 1874 267 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 3416 1014 159 Windstream Communications Inc
6389 3413 3807 198 bellsouth.net, inc.
18566 2090 382 177 Covad Communications
1785 1873 680 127 AppliedTheory Corporation
20115 1634 1555 633 Charter Communications
4323 1549 1007 359 Time Warner Telecom
22773 1542 2910 110 Cox Communications, Inc.
30036 1415 258 757 Mediacom Communications Corp
19262 1389 4703 398 Verizon Global Networks
7018 1280 10928 838 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 1758 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2184 60 LDCOM NETWORKS
286 1073 806 201 KPNQwest Backbone AS
34984 658 188 171 Tellcom Iletisim Hizmetleri
12479 641 645 55 Uni2 Autonomous System
6830 640 1926 411 UPC Distribution Services
20940 623 202 483 Akamai Technologies European
8551 604 360 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 1761 325 169 TVCABLE BOGOTA
28573 1671 1089 55 Types of queries are: POCs, o
8151 1526 3012 345 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 898 672 33 Types of queries are: POCs, o
27947 671 67 105 Telconet S.A
11172 634 91 72 Alestra
6503 581 418 67 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
3816 557 240 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 1250 958 13 TEDATA
24863 832 274 35 LINKdotNET AS number
6713 483 649 18 Itissalat Al-MAGHRIB
3741 276 922 229 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 181 80 8 RAYA Telecom - Egypt
33776 178 12 19 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 153 15 16 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
7029 3416 1014 159 Windstream Communications Inc
6389 3413 3807 198 bellsouth.net, inc.
18566 2090 382 177 Covad Communications
4766 1921 11099 673 Korea Telecom (KIX)
1785 1873 680 127 AppliedTheory Corporation
10620 1761 325 169 TVCABLE BOGOTA
8402 1758 544 16 Corbina telecom
17974 1733 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1671 1089 55 Types of queries are: POCs, o
7545 1644 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 3413 3215 bellsouth.net, inc.
18566 2090 1913 Covad Communications
1785 1873 1746 AppliedTheory Corporation
8402 1758 1742 Corbina telecom
17974 1733 1697 PT TELEKOMUNIKASI INDONESIA
28573 1671 1616 Types of queries are: POCs, o
10620 1761 1592 TVCABLE BOGOTA
7545 1644 1556 TPG Internet Pty Ltd
22773 1542 1432 Cox Communications, Inc.
4755 1569 1409 Videsh Sanchar Nigam Ltd. Aut
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
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,
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
10.29.245.1/32 286 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 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /14:823 /15:1507 /16:12324 /17:6501 /18:10783
/19:21002 /20:29686 /21:29709 /22:40337 /23:37621 /24:210612
/25:63 /26:75 /27:107 /28:279 /29:103 /30:509
/31:19 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3071 3416 Windstream Communications Inc
6389 2104 3413 bellsouth.net, inc.
18566 2039 2090 Covad Communications
8402 1736 1758 Corbina telecom
10620 1658 1761 TVCABLE BOGOTA
30036 1364 1415 Mediacom Communications Corp
11492 1124 1161 Cable One
1785 1060 1873 AppliedTheory Corporation
8452 1060 1250 TEDATA
7011 1042 1157 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:526 2:739 4:18 6:3 8:394 12:1967
13:1 14:610 15:12 16:3 17:7 20:8
23:140 24:1753 27:1214 31:985 32:124 33:2
34:2 36:10 37:232 38:780 39:4 40:117
41:2985 42:122 44:3 46:1394 47:3 49:342
50:515 52:13 54:5 55:11 56:3 57:46
58:976 59:497 60:284 61:1200 62:986 63:2026
64:4134 65:2281 66:4490 67:2070 68:1349 69:3281
70:956 71:409 72:1824 73:1 74:2700 75:483
76:332 77:974 78:966 79:494 80:1222 81:893
82:637 83:543 84:590 85:1169 86:733 87:923
88:350 89:1579 90:285 91:4554 92:508 93:1381
94:1379 95:1104 96:424 97:315 98:830 99:38
100:5 101:229 103:876 106:64 107:167 108:210
109:1539 110:754 111:861 112:440 113:546 114:618
115:789 116:888 117:724 118:920 119:1268 120:375
121:711 122:1621 123:1088 124:1392 125:1340 128:532
129:194 130:266 131:592 132:164 133:21 134:237
135:62 136:212 137:185 138:271 139:157 140:489
141:266 142:393 143:416 144:510 145:69 146:488
147:254 148:761 149:300 150:162 151:198 152:448
153:171 154:7 155:443 156:213 157:370 158:162
159:518 160:324 161:245 162:344 163:187 164:530
165:413 166:563 167:461 168:812 169:149 170:840
171:119 172:4 173:1725 174:608 175:443 176:526
177:538 178:1286 180:1213 181:66 182:781 183:281
184:441 185:1 186:2098 187:842 188:1052 189:1204
190:5489 192:6019 193:5592 194:4386 195:3454 196:1292
197:169 198:3647 199:4452 200:5738 201:1750 202:8454
203:8726 204:4361 205:2446 206:2769 207:2806 208:4075
209:3595 210:2788 211:1489 212:2031 213:1888 214:841
215:102 216:5062 217:1523 218:550 219:334 220:1234
221:565 222:346 223:324
End of report