Routing Table Report 04:00 +10GMT Thu 08 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 399785
Prefixes after maximum aggregation: 170707
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192882
Total ASes present in the Internet Routing Table: 40310
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32840
Origin ASes announcing only one prefix: 15501
Transit ASes present in the Internet Routing Table: 5416
Transit-only ASes present in the Internet Routing Table: 144
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: 350
Unregistered ASNs in the Routing Table: 156
Number of 32-bit ASNs allocated by the RIRs: 2311
Number of 32-bit ASNs visible in the Routing Table: 2054
Prefixes from 32-bit ASNs in the Routing Table: 4916
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 538
Number of addresses announced to Internet: 2543370128
Equivalent to 151 /8s, 152 /16s and 191 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
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: 170047
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98089
Total APNIC prefixes after maximum aggregation: 31937
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 94458
Unique aggregates announced from the APNIC address blocks: 37663
APNIC Region origin ASes present in the Internet Routing Table: 4670
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1235
APNIC Region transit ASes present in the Internet Routing Table: 740
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: 162
Number of APNIC addresses announced to Internet: 658602848
Equivalent to 39 /8s, 65 /16s and 123 /24s
Percentage of available APNIC address space announced: 83.5
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: 148842
Total ARIN prefixes after maximum aggregation: 75653
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120353
Unique aggregates announced from the ARIN address blocks: 49806
ARIN Region origin ASes present in the Internet Routing Table: 14932
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5677
ARIN Region transit ASes present in the Internet Routing Table: 1569
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 806558976
Equivalent to 48 /8s, 19 /16s and 29 /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: 100105
Total RIPE prefixes after maximum aggregation: 52801
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91580
Unique aggregates announced from the RIPE address blocks: 56888
RIPE Region origin ASes present in the Internet Routing Table: 16335
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 7985
RIPE Region transit ASes present in the Internet Routing Table: 2619
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: 1399
Number of RIPE addresses announced to Internet: 501620232
Equivalent to 29 /8s, 230 /16s and 30 /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: 38879
Total LACNIC prefixes after maximum aggregation: 8090
LACNIC Deaggregation factor: 4.81
Prefixes being announced from the LACNIC address blocks: 38616
Unique aggregates announced from the LACNIC address blocks: 19699
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 24.52
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 474
Number of LACNIC addresses announced to Internet: 97981320
Equivalent to 5 /8s, 215 /16s and 19 /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: 8754
Total AfriNIC prefixes after maximum aggregation: 2109
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6844
Unique aggregates announced from the AfriNIC address blocks: 2174
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.14
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 31527424
Equivalent to 1 /8s, 225 /16s and 18 /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 2486 11107 988 Korea Telecom (KIX)
17974 1731 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1650 303 89 TPG Internet Pty Ltd
4755 1568 386 157 TATA Communications formerly
9583 1200 91 510 Sify Limited
9829 1161 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
4808 1133 2096 324 CNCGROUP IP network: China169
24560 1005 383 166 Bharti Airtel Ltd., Telemedia
18101 949 130 155 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 3420 1014 159 Windstream Communications Inc
6389 3413 3807 198 bellsouth.net, inc.
18566 2090 382 177 Covad Communications
1785 1880 680 128 PaeTec Communications, Inc.
20115 1634 1555 633 Charter Communications
4323 1608 1059 383 Time Warner Telecom
22773 1545 2910 111 Cox Communications, Inc.
30036 1416 258 757 Mediacom Communications Corp
19262 1389 4703 398 Verizon Global Networks
7018 1286 9777 844 AT&T WorldNet Services
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 1770 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2184 60 LDCOM NETWORKS
34984 658 188 171 BILISIM TELEKOM
6830 639 1926 410 UPC Distribution Services
12479 634 646 54 Uni2 Autonomous System
20940 634 203 483 Akamai Technologies European
8551 599 360 81 Bezeq International
31148 540 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 1763 326 160 TVCABLE BOGOTA
28573 1678 1089 55 NET Servicos de Comunicao S.A
8151 1485 3013 346 UniNet S.A. de C.V.
7303 1323 822 183 Telecom Argentina Stet-France
26615 898 672 33 Tim Brasil S.A.
27947 678 68 110 Telconet S.A
11172 634 91 72 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
6503 573 418 66 AVANTEL, S.A.
3816 558 240 89 Empresa Nacional de Telecomun
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 1251 958 13 TEDATA
24863 834 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 181 80 8 RAYA Telecom - Egypt
33776 177 12 18 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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 3420 1014 159 Windstream Communications Inc
6389 3413 3807 198 bellsouth.net, inc.
4766 2486 11107 988 Korea Telecom (KIX)
18566 2090 382 177 Covad Communications
1785 1880 680 128 PaeTec Communications, Inc.
8402 1770 544 16 Corbina telecom
10620 1763 326 160 TVCABLE BOGOTA
17974 1731 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1678 1089 55 NET Servicos de Comunicao S.A
7545 1650 303 89 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 3413 3215 bellsouth.net, inc.
18566 2090 1913 Covad Communications
8402 1770 1754 Corbina telecom
1785 1880 1752 PaeTec Communications, Inc.
17974 1731 1695 PT TELEKOMUNIKASI INDONESIA
28573 1678 1623 NET Servicos de Comunicao S.A
10620 1763 1603 TVCABLE BOGOTA
7545 1650 1561 TPG Internet Pty Ltd
4766 2486 1498 Korea Telecom (KIX)
22773 1545 1434 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 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /8:21 /9:12 /10:28 /11:81 /12:235
/13:458 /14:818 /15:1474 /16:12179 /17:6222 /18:10406
/19:20455 /20:28485 /21:29328 /22:39970 /23:37157 /24:208766
/25:1210 /26:1439 /27:780 /28:169 /29:59 /30:14
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3075 3420 Windstream Communications Inc
6389 2104 3413 bellsouth.net, inc.
18566 2039 2090 Covad Communications
8402 1748 1770 Corbina telecom
10620 1660 1763 TVCABLE BOGOTA
30036 1365 1416 Mediacom Communications Corp
11492 1124 1161 Cable One
1785 1064 1880 PaeTec Communications, Inc.
8452 1061 1251 TEDATA
7011 1042 1157 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:523 2:725 4:14 6:3 8:389 12:1963
13:1 14:604 15:12 16:3 17:7 20:8
23:140 24:1745 27:1213 31:984 32:62 33:2
34:2 36:9 37:230 38:780 40:117 41:2994
42:121 44:3 46:1401 47:3 49:335 50:511
52:13 54:5 55:10 56:3 57:38 58:952
59:497 60:283 61:1189 62:977 63:2008 64:4116
65:2280 66:4468 67:2031 68:1164 69:3168 70:910
71:409 72:1786 74:2646 75:470 76:321 77:973
78:962 79:487 80:1210 81:886 82:627 83:540
84:592 85:1162 86:725 87:914 88:334 89:1565
90:277 91:4549 92:515 93:1381 94:1370 95:1116
96:422 97:316 98:828 99:38 100:5 101:145
103:868 106:64 107:168 108:208 109:1531 110:724
111:866 112:435 113:531 114:605 115:772 116:870
117:708 118:905 119:1262 120:372 121:687 122:1620
123:1078 124:1335 125:1338 128:541 129:191 130:260
131:591 132:165 133:21 134:236 135:62 136:212
137:185 138:275 139:145 140:490 141:266 142:392
143:421 144:509 145:69 146:489 147:243 148:725
149:300 150:162 151:198 152:448 153:171 154:7
155:429 156:213 157:370 158:162 159:518 160:327
161:245 162:342 163:187 164:531 165:394 166:563
167:464 168:811 169:148 170:838 171:119 172:4
173:1707 174:591 175:419 176:544 177:540 178:1281
180:1194 181:68 182:766 183:281 184:442 185:1
186:2098 187:849 188:1071 189:1206 190:5463 192:5992
193:5566 194:4366 195:3407 196:1285 197:168 198:3637
199:4443 200:5733 201:1762 202:8387 203:8676 204:4359
205:2448 206:2752 207:2800 208:4041 209:3550 210:2757
211:1474 212:1954 213:1880 214:850 215:103 216:5038
217:1524 218:548 219:333 220:1227 221:564 222:323
223:325
End of report