Routing Table Report 00:00 GMT Wed 14 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: 404417
Prefixes after maximum aggregation: 172182
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 192879
Total ASes present in the Internet Routing Table: 40379
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32853
Origin ASes announcing only one prefix: 15520
Transit ASes present in the Internet Routing Table: 5451
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 27
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5486
Unregistered ASNs in the Routing Table: 212
Number of 32-bit ASNs allocated by the RIRs: 2318
Number of 32-bit ASNs visible in the Routing Table: 2075
Prefixes from 32-bit ASNs in the Routing Table: 5001
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 629
Number of addresses announced to Internet: 2526517975
Equivalent to 150 /8s, 151 /16s and 154 /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: 170177
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96680
Total APNIC prefixes after maximum aggregation: 30856
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 93154
Unique aggregates announced from the APNIC address blocks: 38410
APNIC Region origin ASes present in the Internet Routing Table: 4656
APNIC Prefixes per ASN: 20.01
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 744
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: 163
Number of APNIC addresses announced to Internet: 641054464
Equivalent to 38 /8s, 53 /16s and 183 /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: 151377
Total ARIN prefixes after maximum aggregation: 77848
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122752
Unique aggregates announced from the ARIN address blocks: 48789
ARIN Region origin ASes present in the Internet Routing Table: 14959
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 806595330
Equivalent to 48 /8s, 19 /16s and 171 /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: 102772
Total RIPE prefixes after maximum aggregation: 53099
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 93428
Unique aggregates announced from the RIPE address blocks: 56983
RIPE Region origin ASes present in the Internet Routing Table: 16353
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7992
RIPE Region transit ASes present in the Internet Routing Table: 2638
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1419
Number of RIPE addresses announced to Internet: 501943436
Equivalent to 29 /8s, 235 /16s and 12 /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: 39652
Total LACNIC prefixes after maximum aggregation: 8122
LACNIC Deaggregation factor: 4.88
Prefixes being announced from the LACNIC address blocks: 39319
Unique aggregates announced from the LACNIC address blocks: 19728
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.04
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 290
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: 474
Number of LACNIC addresses announced to Internet: 98153224
Equivalent to 5 /8s, 217 /16s and 179 /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: 8608
Total AfriNIC prefixes after maximum aggregation: 2118
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6708
Unique aggregates announced from the AfriNIC address blocks: 2174
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 12.85
AfriNIC Region origin ASes announcing only one prefix: 170
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31555072
Equivalent to 1 /8s, 225 /16s and 126 /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 1928 11102 679 Korea Telecom (KIX)
17974 1742 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1647 303 89 TPG Internet Pty Ltd
4755 1569 386 160 Videsh Sanchar Nigam Ltd. Aut
9829 1189 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
9583 1109 84 508 Sify Limited
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 3415 1006 158 Windstream Communications Inc
6389 3404 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1877 680 127 AppliedTheory Corporation
20115 1633 1555 634 Charter Communications
4323 1566 1040 365 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1403 254 757 Mediacom Communications Corp
7018 1293 13983 855 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 1814 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
286 1071 854 202 KPNQwest Backbone AS
34984 662 188 171 Tellcom Iletisim Hizmetleri
6830 641 1927 412 UPC Distribution Services
12479 630 651 66 Uni2 Autonomous System
20940 629 205 489 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 1776 326 152 TVCABLE BOGOTA
28573 1717 1094 58 Types of queries are: POCs, o
8151 1528 2996 344 Uninet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 900 676 30 Types of queries are: POCs, o
27947 679 68 108 Telconet S.A
11172 635 91 72 Alestra
22047 582 322 17 Types of queries are: POCs, o
6503 576 418 66 AVANTEL, S.A.
3816 561 240 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 1233 958 13 TEDATA
24863 684 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 923 229 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 3415 1006 158 Windstream Communications Inc
6389 3404 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
4766 1928 11102 679 Korea Telecom (KIX)
1785 1877 680 127 AppliedTheory Corporation
8402 1814 544 16 Corbina telecom
10620 1776 326 152 TVCABLE BOGOTA
17974 1742 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 3404 3206 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1814 1798 Corbina telecom
1785 1877 1750 AppliedTheory Corporation
17974 1742 1706 PT TELEKOMUNIKASI INDONESIA
28573 1717 1659 Types of queries are: POCs, o
10620 1776 1624 TVCABLE BOGOTA
7545 1647 1558 TPG Internet Pty Ltd
22773 1546 1435 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 54500 EGIHosting
23.27.0.0/16 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 /14:824 /15:1511 /16:12336 /17:6513 /18:10831
/19:21022 /20:29757 /21:29878 /22:40298 /23:37672 /24:211314
/25:69 /26:76 /27:110 /28:275 /29:105 /30:510
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3071 3415 Windstream Communications Inc
6389 2102 3404 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1792 1814 Corbina telecom
10620 1673 1776 TVCABLE BOGOTA
30036 1352 1403 Mediacom Communications Corp
11492 1125 1162 Cable One
1785 1061 1877 AppliedTheory Corporation
8452 1046 1233 TEDATA
7011 1042 1156 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:527 2:778 4:18 6:3 8:394 12:1965
13:1 14:599 15:12 16:3 17:7 20:8
23:142 24:1757 27:1234 31:975 32:124 33:2
34:2 36:9 37:257 38:782 39:4 40:122
41:2990 42:127 44:3 46:1407 47:3 49:345
50:518 52:13 54:5 55:10 56:3 57:47
58:953 59:498 60:284 61:1201 62:990 63:2026
64:4163 65:2286 66:4519 67:2056 68:1341 69:3283
70:931 71:314 72:1805 73:1 74:2631 75:498
76:332 77:977 78:968 79:502 80:1208 81:898
82:645 83:545 84:620 85:1193 86:735 87:923
88:349 89:1578 90:286 91:4581 92:517 93:1394
94:1398 95:1121 96:378 97:315 98:809 99:38
100:5 101:243 103:893 106:64 107:173 108:201
109:1562 110:748 111:859 112:442 113:558 114:623
115:805 116:904 117:724 118:923 119:1259 120:334
121:712 122:1627 123:1093 124:1392 125:1330 128:541
129:195 130:266 131:579 132:170 133:21 134:239
135:63 136:206 137:185 138:275 139:157 140:487
141:236 142:390 143:423 144:497 145:69 146:490
147:251 148:759 149:300 150:158 151:176 152:449
153:171 154:7 155:444 156:212 157:383 158:162
159:520 160:329 161:245 162:344 163:185 164:531
165:413 166:565 167:463 168:812 169:149 170:846
171:119 172:4 173:1735 174:590 175:447 176:550
177:565 178:1289 180:1203 181:70 182:790 183:284
184:458 185:1 186:2104 187:843 188:1051 189:1207
190:5529 192:6010 193:5604 194:4581 195:3682 196:1290
197:168 198:3634 199:4461 200:5761 201:1775 202:8453
203:8733 204:4363 205:2458 206:2779 207:2800 208:4104
209:3632 210:2792 211:1475 212:2020 213:1885 214:849
215:103 216:5063 217:1526 218:542 219:339 220:1238
221:560 222:346 223:326
End of report
