Routing Table Report 00:00 GMT Thu 15 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: 404395
Prefixes after maximum aggregation: 172151
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194646
Total ASes present in the Internet Routing Table: 40398
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32867
Origin ASes announcing only one prefix: 15512
Transit ASes present in the Internet Routing Table: 5447
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5511
Unregistered ASNs in the Routing Table: 220
Number of 32-bit ASNs allocated by the RIRs: 2319
Number of 32-bit ASNs visible in the Routing Table: 2084
Prefixes from 32-bit ASNs in the Routing Table: 5021
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 656
Number of addresses announced to Internet: 2526890197
Equivalent to 150 /8s, 157 /16s and 72 /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: 170236
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96430
Total APNIC prefixes after maximum aggregation: 30834
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92902
Unique aggregates announced from the APNIC address blocks: 39225
APNIC Region origin ASes present in the Internet Routing Table: 4653
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 743
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640836608
Equivalent to 38 /8s, 50 /16s and 100 /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: 151531
Total ARIN prefixes after maximum aggregation: 77853
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122907
Unique aggregates announced from the ARIN address blocks: 49898
ARIN Region origin ASes present in the Internet Routing Table: 14963
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5676
ARIN Region transit ASes present in the Internet Routing Table: 1570
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 806507776
Equivalent to 48 /8s, 18 /16s and 85 /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: 102867
Total RIPE prefixes after maximum aggregation: 53101
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 93504
Unique aggregates announced from the RIPE address blocks: 57009
RIPE Region origin ASes present in the Internet Routing Table: 16355
RIPE Prefixes per ASN: 5.72
RIPE Region origin ASes announcing only one prefix: 7980
RIPE Region transit ASes present in the Internet Routing Table: 2634
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1418
Number of RIPE addresses announced to Internet: 502218636
Equivalent to 29 /8s, 239 /16s and 63 /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: 39511
Total LACNIC prefixes after maximum aggregation: 8113
LACNIC Deaggregation factor: 4.87
Prefixes being announced from the LACNIC address blocks: 39186
Unique aggregates announced from the LACNIC address blocks: 19519
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.90
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 483
Number of LACNIC addresses announced to Internet: 98153480
Equivalent to 5 /8s, 217 /16s and 180 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8703
Total AfriNIC prefixes after maximum aggregation: 2103
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6790
Unique aggregates announced from the AfriNIC address blocks: 2155
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 12.98
AfriNIC Region origin ASes announcing only one prefix: 171
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 4
Number of AfriNIC addresses announced to Internet: 31517184
Equivalent to 1 /8s, 224 /16s and 234 /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 1927 11101 679 Korea Telecom (KIX)
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1647 303 89 TPG Internet Pty Ltd
4755 1568 386 159 Videsh Sanchar Nigam Ltd. Aut
9583 1201 91 510 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
24560 1012 384 166 Bharti Airtel Ltd.
18101 949 130 156 Reliance Infocom Ltd Internet
4808 921 1875 266 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 3414 1006 158 Windstream Communications Inc
6389 3401 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1878 680 127 AppliedTheory Corporation
20115 1635 1555 634 Charter Communications
4323 1560 1039 362 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1406 255 759 Mediacom Communications Corp
7018 1277 13743 840 AT&T WorldNet Services
2386 1163 493 860 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
8402 1792 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 662 188 171 Tellcom Iletisim Hizmetleri
6830 641 1927 412 UPC Distribution Services
12479 632 653 67 Uni2 Autonomous System
20940 622 202 490 Akamai Technologies European
8551 601 360 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 1775 326 152 TVCABLE BOGOTA
28573 1717 1094 58 Types of queries are: POCs, o
8151 1515 2997 329 Uninet S.A. de C.V.
7303 1330 823 185 Telecom Argentina Stet-France
26615 900 676 30 Types of queries are: POCs, o
27947 680 68 108 Telconet S.A
11172 636 91 73 Alestra
22047 582 322 17 Types of queries are: POCs, o
6503 567 418 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 1252 958 13 TEDATA
24863 840 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 268 922 225 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 183 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
33776 153 11 24 Starcomms Nigeria 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 3414 1006 158 Windstream Communications Inc
6389 3401 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
4766 1927 11101 679 Korea Telecom (KIX)
1785 1878 680 127 AppliedTheory Corporation
8402 1792 544 16 Corbina telecom
10620 1775 326 152 TVCABLE BOGOTA
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1717 1094 58 Types of queries are: POCs, o
7545 1647 303 89 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 3401 3203 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1792 1776 Corbina telecom
1785 1878 1751 AppliedTheory Corporation
17974 1744 1708 PT TELEKOMUNIKASI INDONESIA
28573 1717 1659 Types of queries are: POCs, o
10620 1775 1623 TVCABLE BOGOTA
7545 1647 1558 TPG Internet Pty Ltd
22773 1546 1435 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
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 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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:458 /14:825 /15:1507 /16:12337 /17:6508 /18:10824
/19:21055 /20:29761 /21:29894 /22:40341 /23:37753 /24:211130
/25:69 /26:75 /27:110 /28:276 /29:104 /30:510
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3070 3414 Windstream Communications Inc
6389 2099 3401 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1770 1792 Corbina telecom
10620 1672 1775 TVCABLE BOGOTA
30036 1355 1406 Mediacom Communications Corp
11492 1125 1162 Cable One
1785 1062 1878 AppliedTheory Corporation
8452 1062 1252 TEDATA
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)
----------------------------------------------
1:527 2:758 4:18 6:3 8:394 12:1973
13:1 14:606 15:12 16:3 17:7 20:8
23:141 24:1759 27:1237 31:981 32:124 33:1
34:2 36:9 37:258 38:778 39:4 40:122
41:2965 42:129 44:3 46:1423 47:3 49:346
50:519 52:13 54:5 55:11 56:3 57:47
58:959 59:494 60:278 61:1202 62:983 63:2027
64:4181 65:2286 66:4520 67:2052 68:1343 69:3282
70:947 71:390 72:1831 73:1 74:2636 75:502
76:332 77:976 78:980 79:512 80:1223 81:898
82:645 83:552 84:609 85:1193 86:735 87:922
88:351 89:1579 90:287 91:4601 92:518 93:1390
94:1398 95:1129 96:376 97:316 98:816 99:38
100:6 101:239 103:899 106:64 107:176 108:204
109:1568 110:749 111:878 112:443 113:556 114:621
115:804 116:877 117:723 118:913 119:1214 120:334
121:714 122:1627 123:1099 124:1384 125:1281 128:542
129:195 130:265 131:577 132:170 133:21 134:240
135:63 136:212 137:185 138:275 139:157 140:486
141:237 142:390 143:420 144:499 145:69 146:489
147:253 148:758 149:300 150:158 151:176 152:449
153:171 154:7 155:444 156:212 157:383 158:162
159:520 160:329 161:245 162:344 163:186 164:531
165:413 166:565 167:463 168:809 169:149 170:842
171:120 172:4 173:1736 174:596 175:447 176:553
177:564 178:1284 180:1163 181:70 182:790 183:285
184:448 185:1 186:2107 187:850 188:1060 189:1207
190:5505 192:6012 193:5604 194:4586 195:3686 196:1285
197:164 198:3631 199:4457 200:5754 201:1650 202:8453
203:8651 204:4359 205:2459 206:2780 207:2800 208:4103
209:3632 210:2779 211:1476 212:2015 213:1881 214:870
215:103 216:5059 217:1529 218:542 219:340 220:1238
221:553 222:347 223:325
End of report