Routing Table Report 04:00 +10GMT Thu 15 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 401045
Prefixes after maximum aggregation: 170823
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194521
Total ASes present in the Internet Routing Table: 40346
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32864
Origin ASes announcing only one prefix: 15479
Transit ASes present in the Internet Routing Table: 5412
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 180
Number of 32-bit ASNs allocated by the RIRs: 2319
Number of 32-bit ASNs visible in the Routing Table: 2070
Prefixes from 32-bit ASNs in the Routing Table: 5004
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 641
Number of addresses announced to Internet: 2526321040
Equivalent to 150 /8s, 148 /16s and 153 /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: 170272
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98423
Total APNIC prefixes after maximum aggregation: 31869
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 94812
Unique aggregates announced from the APNIC address blocks: 39235
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 20.34
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640800864
Equivalent to 38 /8s, 49 /16s and 216 /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: 148866
Total ARIN prefixes after maximum aggregation: 75680
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120434
Unique aggregates announced from the ARIN address blocks: 49887
ARIN Region origin ASes present in the Internet Routing Table: 14932
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1572
Average ARIN Region AS path length visible: 4.0
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: 806426112
Equivalent to 48 /8s, 17 /16s and 22 /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: 100807
Total RIPE prefixes after maximum aggregation: 52885
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92309
Unique aggregates announced from the RIPE address blocks: 56972
RIPE Region origin ASes present in the Internet Routing Table: 16342
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7969
RIPE Region transit ASes present in the Internet Routing Table: 2615
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1408
Number of RIPE addresses announced to Internet: 502053896
Equivalent to 29 /8s, 236 /16s and 188 /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: 38953
Total LACNIC prefixes after maximum aggregation: 8144
LACNIC Deaggregation factor: 4.78
Prefixes being announced from the LACNIC address blocks: 38683
Unique aggregates announced from the LACNIC address blocks: 19534
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.61
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 479
Number of LACNIC addresses announced to Internet: 98129032
Equivalent to 5 /8s, 217 /16s and 84 /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: 8750
Total AfriNIC prefixes after maximum aggregation: 2101
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6832
Unique aggregates announced from the AfriNIC address blocks: 2162
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.04
AfriNIC Region origin ASes announcing only one prefix: 173
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.6
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: 31553536
Equivalent to 1 /8s, 225 /16s and 120 /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 2492 11110 994 Korea Telecom (KIX)
17974 1743 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1650 303 87 TPG Internet Pty Ltd
4755 1568 386 159 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
4808 1093 2048 311 CNCGROUP IP network: China169
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
18101 949 130 156 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3418 1006 158 Windstream Communications Inc
6389 3399 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1882 680 128 PaeTec Communications, Inc.
20115 1636 1555 634 Charter Communications
4323 1608 1059 384 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1406 255 759 Mediacom Communications Corp
7018 1276 9776 839 AT&T WorldNet Services
2386 1162 493 859 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1825 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
34984 662 188 171 BILISIM TELEKOM
6830 640 1927 411 UPC Distribution Services
20940 633 203 490 Akamai Technologies European
12479 632 653 67 Uni2 Autonomous System
8551 574 360 81 Bezeq International
31148 539 37 9 FreeNet ISP
3320 533 8442 399 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/current/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 1719 1094 58 NET Servicos de Comunicao S.A
8151 1482 3013 348 UniNet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 900 676 30 Tim Brasil S.A.
27947 680 68 108 Telconet S.A
11172 635 91 73 Servicios Alestra S.A de C.V
22047 582 322 17 VTR PUNTO NET S.A.
3816 561 240 89 Empresa Nacional de Telecomun
6503 559 418 65 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1252 958 13 TEDATA
24863 841 274 37 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 268 922 225 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 183 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
16637 153 641 76 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3418 1006 158 Windstream Communications Inc
6389 3399 3807 198 bellsouth.net, inc.
4766 2492 11110 994 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1882 680 128 PaeTec Communications, Inc.
8402 1825 544 16 Corbina telecom
10620 1775 326 152 TVCABLE BOGOTA
17974 1743 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1719 1094 58 NET Servicos de Comunicao S.A
7545 1650 303 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3399 3201 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1825 1809 Corbina telecom
1785 1882 1754 PaeTec Communications, Inc.
17974 1743 1707 PT TELEKOMUNIKASI INDONESIA
28573 1719 1661 NET Servicos de Comunicao S.A
10620 1775 1623 TVCABLE BOGOTA
7545 1650 1563 TPG Internet Pty Ltd
4766 2492 1498 Korea Telecom (KIX)
22773 1546 1435 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/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/current/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 /14:820 /15:1475 /16:12187 /17:6224 /18:10407
/19:20504 /20:28616 /21:29495 /22:39957 /23:37264 /24:209542
/25:1220 /26:1446 /27:792 /28:168 /29:59 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3074 3418 Windstream Communications Inc
6389 2097 3399 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1803 1825 Corbina telecom
10620 1672 1775 TVCABLE BOGOTA
30036 1355 1406 Mediacom Communications Corp
11492 1125 1162 Cable One
1785 1065 1882 PaeTec Communications, Inc.
8452 1062 1252 TEDATA
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:523 2:774 4:14 6:3 8:392 12:1970
13:1 14:602 15:12 16:3 17:7 20:8
23:141 24:1751 27:1237 31:951 32:62 33:1
34:2 36:9 37:256 38:773 40:122 41:2994
42:128 44:3 46:1417 47:3 49:341 50:516
52:13 54:5 55:11 56:3 57:38 58:953
59:494 60:278 61:1191 62:974 63:2010 64:4160
65:2285 66:4496 67:2013 68:1159 69:3169 70:901
71:390 72:1801 74:2582 75:489 76:320 77:975
78:977 79:497 80:1218 81:891 82:632 83:548
84:597 85:1189 86:726 87:912 88:335 89:1566
90:287 91:4582 92:516 93:1388 94:1390 95:1128
96:373 97:316 98:809 99:38 100:6 101:239
103:898 106:64 107:176 108:199 109:1556 110:741
111:878 112:441 113:556 114:617 115:804 116:870
117:723 118:904 119:1213 120:331 121:690 122:1626
123:1093 124:1365 125:1280 128:545 129:192 130:261
131:578 132:170 133:21 134:238 135:63 136:212
137:185 138:275 139:145 140:486 141:237 142:389
143:419 144:499 145:69 146:488 147:243 148:723
149:300 150:158 151:176 152:449 153:171 154:7
155:429 156:212 157:381 158:162 159:520 160:329
161:245 162:344 163:186 164:531 165:394 166:565
167:463 168:808 169:148 170:842 171:120 172:4
173:1718 174:594 175:435 176:554 177:562 178:1280
180:1152 181:70 182:786 183:285 184:447 185:1
186:2109 187:849 188:1060 189:1206 190:5497 192:5983
193:5577 194:4558 195:3638 196:1286 197:168 198:3617
199:4447 200:5730 201:1640 202:8443 203:8601 204:4363
205:2453 206:2759 207:2795 208:4081 209:3602 210:2758
211:1464 212:1953 213:1870 214:874 215:103 216:5048
217:1522 218:540 219:339 220:1231 221:552 222:324
223:325
End of report