Routing Table Report 04:00 +10GMT Fri 30 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 403861
Prefixes after maximum aggregation: 171674
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195819
Total ASes present in the Internet Routing Table: 40538
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32958
Origin ASes announcing only one prefix: 15480
Transit ASes present in the Internet Routing Table: 5427
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 542
Unregistered ASNs in the Routing Table: 256
Number of 32-bit ASNs allocated by the RIRs: 2341
Number of 32-bit ASNs visible in the Routing Table: 2153
Prefixes from 32-bit ASNs in the Routing Table: 5276
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1227
Number of addresses announced to Internet: 2531173520
Equivalent to 150 /8s, 222 /16s and 164 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
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: 171650
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98832
Total APNIC prefixes after maximum aggregation: 32111
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95238
Unique aggregates announced from the APNIC address blocks: 39252
APNIC Region origin ASes present in the Internet Routing Table: 4677
APNIC Prefixes per ASN: 20.36
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 172
Number of APNIC addresses announced to Internet: 642219104
Equivalent to 38 /8s, 71 /16s and 124 /24s
Percentage of available APNIC address space announced: 81.4
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: 149330
Total ARIN prefixes after maximum aggregation: 75831
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120704
Unique aggregates announced from the ARIN address blocks: 49959
ARIN Region origin ASes present in the Internet Routing Table: 14938
ARIN Prefixes per ASN: 8.08
ARIN Region origin ASes announcing only one prefix: 5692
ARIN Region transit ASes present in the Internet Routing Table: 1568
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: 16
Number of ARIN addresses announced to Internet: 805218560
Equivalent to 47 /8s, 254 /16s and 169 /24s
Percentage of available ARIN address space announced: 64.0
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: 100827
Total RIPE prefixes after maximum aggregation: 53210
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 92167
Unique aggregates announced from the RIPE address blocks: 57200
RIPE Region origin ASes present in the Internet Routing Table: 16354
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7950
RIPE Region transit ASes present in the Internet Routing Table: 2635
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1458
Number of RIPE addresses announced to Internet: 502339848
Equivalent to 29 /8s, 241 /16s and 25 /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: 40272
Total LACNIC prefixes after maximum aggregation: 8161
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 39803
Unique aggregates announced from the LACNIC address blocks: 19740
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 25.29
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 502
Number of LACNIC addresses announced to Internet: 98748040
Equivalent to 5 /8s, 226 /16s and 198 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8935
Total AfriNIC prefixes after maximum aggregation: 2122
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6976
Unique aggregates announced from the AfriNIC address blocks: 2163
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 164
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: 5
Number of AfriNIC addresses announced to Internet: 31518720
Equivalent to 1 /8s, 224 /16s and 240 /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 11109 992 Korea Telecom (KIX)
17974 1785 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1659 301 89 TPG Internet Pty Ltd
4755 1575 386 158 TATA Communications formerly
9583 1237 94 539 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1177 1062 11 Vietel Corporation
4808 1100 2049 317 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
18101 950 131 159 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
6389 3378 3807 196 bellsouth.net, inc.
7029 3378 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1887 680 128 PaeTec Communications, Inc.
20115 1634 1559 624 Charter Communications
4323 1605 1060 382 Time Warner Telecom
22773 1551 2910 111 Cox Communications, Inc.
30036 1415 256 745 Mediacom Communications Corp
7018 1280 9775 830 AT&T WorldNet Services
11492 1184 216 364 Cable One
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 1824 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
31148 674 37 9 FreeNet ISP
34984 673 188 175 BILISIM TELEKOM
12479 655 658 57 Uni2 Autonomous System
20940 644 206 496 Akamai Technologies European
6830 641 1943 412 UPC Distribution Services
8551 572 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
2578 500 33 7 Demos, Moscow, Russia
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 1812 330 129 TVCABLE BOGOTA
28573 1745 1105 60 NET Servicos de Comunicao S.A
8151 1491 3018 349 UniNet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
6503 1348 418 65 AVANTEL, S.A.
26615 901 696 31 Tim Brasil S.A.
27947 688 74 100 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 565 241 104 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 1292 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 164 664 82 MTN Network Solutions
29571 159 15 16 Ci Telecom Autonomous system
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
6389 3378 3807 196 bellsouth.net, inc.
7029 3378 990 155 Windstream Communications Inc
4766 2492 11109 992 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1887 680 128 PaeTec Communications, Inc.
8402 1824 544 16 Corbina telecom
10620 1812 330 129 TVCABLE BOGOTA
17974 1785 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1745 1105 60 NET Servicos de Comunicao S.A
7545 1659 301 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
7029 3378 3223 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1824 1808 Corbina telecom
1785 1887 1759 PaeTec Communications, Inc.
17974 1785 1724 PT TELEKOMUNIKASI INDONESIA
28573 1745 1685 NET Servicos de Comunicao S.A
10620 1812 1683 TVCABLE BOGOTA
7545 1659 1570 TPG Internet Pty Ltd
4766 2492 1500 Korea Telecom (KIX)
22773 1551 1440 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
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
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
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 /14:832 /15:1480 /16:12187 /17:6265 /18:10441
/19:20588 /20:28767 /21:29725 /22:40281 /23:37549 /24:211170
/25:1220 /26:1460 /27:797 /28:170 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3038 3378 Windstream Communications Inc
6389 2095 3378 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1801 1824 Corbina telecom
10620 1705 1812 TVCABLE BOGOTA
30036 1359 1415 Mediacom Communications Corp
11492 1147 1184 Cable One
6503 1118 1348 AVANTEL, S.A.
8452 1100 1292 TEDATA
1785 1066 1887 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:758 4:14 6:3 8:393 12:1990
13:1 14:603 15:12 16:3 17:7 20:8
23:159 24:1756 27:1259 31:939 32:58 33:2
34:2 36:8 37:304 38:789 40:120 41:3099
42:132 44:3 46:1457 47:3 49:342 50:536
52:12 54:6 55:11 56:3 57:32 58:962
59:495 60:278 61:1203 62:971 63:1990 64:4198
65:2275 66:4503 67:2016 68:1147 69:3184 70:901
71:466 72:1822 74:2598 75:493 76:319 77:962
78:1002 79:500 80:1214 81:897 82:663 83:546
84:516 85:1204 86:407 87:915 88:343 89:1622
90:297 91:4656 92:519 93:1413 94:1464 95:1155
96:375 97:315 98:828 99:37 100:6 101:166
103:925 106:66 107:179 108:216 109:1273 110:759
111:902 112:446 113:560 114:629 115:778 116:907
117:724 118:909 119:1208 120:339 121:696 122:1665
123:1101 124:1364 125:1261 128:556 129:191 130:256
131:595 132:173 133:21 134:242 135:63 136:213
137:176 138:351 139:145 140:491 141:244 142:386
143:410 144:505 145:66 146:485 147:247 148:756
149:298 150:157 151:176 152:460 153:171 154:7
155:430 156:215 157:379 158:171 159:530 160:343
161:249 162:343 163:189 164:555 165:391 166:562
167:463 168:817 169:127 170:844 171:125 172:4
173:1720 174:599 175:436 176:453 177:617 178:1312
180:1153 181:74 182:764 183:277 184:442 185:1
186:2150 187:1008 188:1157 189:1680 190:5500 192:6001
193:5604 194:4625 195:3601 196:1291 197:121 198:3621
199:4476 200:5812 201:1907 202:8462 203:8591 204:4348
205:2470 206:2740 207:2791 208:4051 209:3612 210:2766
211:1467 212:1980 213:1909 214:878 215:109 216:5084
217:1524 218:540 219:324 220:1232 221:555 222:325
223:328
End of report