Routing Table Report 04:00 +10GMT Fri 27 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 394008
Prefixes after maximum aggregation: 169118
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191456
Total ASes present in the Internet Routing Table: 39931
Prefixes per ASN: 9.87
Origin-only ASes present in the Internet Routing Table: 32668
Origin ASes announcing only one prefix: 15507
Transit ASes present in the Internet Routing Table: 5377
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (38964) 31
Prefixes from unregistered ASNs in the Routing Table: 306
Unregistered ASNs in the Routing Table: 122
Number of 32-bit ASNs allocated by the RIRs: 2217
Number of 32-bit ASNs visible in the Routing Table: 1886
Prefixes from 32-bit ASNs in the Routing Table: 4570
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2512548424
Equivalent to 149 /8s, 194 /16s and 114 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 166609
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97682
Total APNIC prefixes after maximum aggregation: 31606
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 93959
Unique aggregates announced from the APNIC address blocks: 39067
APNIC Region origin ASes present in the Internet Routing Table: 4648
APNIC Prefixes per ASN: 20.21
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 137
Number of APNIC addresses announced to Internet: 635146592
Equivalent to 37 /8s, 219 /16s and 145 /24s
Percentage of available APNIC address space announced: 80.5
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: 147866
Total ARIN prefixes after maximum aggregation: 75246
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119837
Unique aggregates announced from the ARIN address blocks: 49188
ARIN Region origin ASes present in the Internet Routing Table: 14873
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5682
ARIN Region transit ASes present in the Internet Routing Table: 1580
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 805030464
Equivalent to 47 /8s, 251 /16s and 202 /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: 97363
Total RIPE prefixes after maximum aggregation: 52132
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89324
Unique aggregates announced from the RIPE address blocks: 55806
RIPE Region origin ASes present in the Internet Routing Table: 16270
RIPE Prefixes per ASN: 5.49
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2585
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1306
Number of RIPE addresses announced to Internet: 498545288
Equivalent to 29 /8s, 183 /16s and 50 /24s
Percentage of available RIPE address space announced: 80.3
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: 37398
Total LACNIC prefixes after maximum aggregation: 7966
LACNIC Deaggregation factor: 4.69
Prefixes being announced from the LACNIC address blocks: 37004
Unique aggregates announced from the LACNIC address blocks: 19317
LACNIC Region origin ASes present in the Internet Routing Table: 1568
LACNIC Prefixes per ASN: 23.60
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 425
Number of LACNIC addresses announced to Internet: 95819136
Equivalent to 5 /8s, 182 /16s and 21 /24s
Percentage of available LACNIC address space announced: 63.5
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: 8973
Total AfriNIC prefixes after maximum aggregation: 2095
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6998
Unique aggregates announced from the AfriNIC address blocks: 2148
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.78
AfriNIC Region origin ASes announcing only one prefix: 161
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: 30894592
Equivalent to 1 /8s, 215 /16s and 106 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2468 11101 975 Korea Telecom (KIX)
17974 1712 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1641 303 85 TPG Internet Pty Ltd
4755 1526 385 155 TATA Communications formerly
7552 1424 1064 7 Vietel Corporation
9829 1167 989 28 BSNL National Internet Backbo
9583 1118 81 483 Sify Limited
4808 1098 2050 311 CNCGROUP IP network: China169
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
18101 946 130 155 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
6389 3446 3807 201 bellsouth.net, inc.
7029 3227 1017 200 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1863 679 123 PaeTec Communications, Inc.
20115 1624 1552 628 Charter Communications
4323 1608 1062 384 Time Warner Telecom
22773 1520 2910 109 Cox Communications, Inc.
30036 1451 254 732 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1304 7008 851 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 1760 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 LDCOM NETWORKS
6830 642 1927 412 UPC Distribution Services
34984 640 188 172 BILISIM TELEKOM
20940 587 192 461 Akamai Technologies European
12479 559 641 56 Uni2 Autonomous System
8551 530 360 81 Bezeq International
31148 524 36 8 FreeNet ISP
3320 517 8157 393 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 1729 322 168 TVCABLE BOGOTA
28573 1636 1069 71 NET Servicos de Comunicao S.A
8151 1345 3000 342 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
11172 687 95 72 Servicios Alestra S.A de C.V
27947 627 73 97 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
3816 550 238 92 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 537 434 68 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 1195 958 13 TEDATA
24863 833 156 44 LINKdotNET AS number
6713 486 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 167 664 82 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
6389 3446 3807 201 bellsouth.net, inc.
7029 3227 1017 200 Windstream Communications Inc
4766 2468 11101 975 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1863 679 123 PaeTec Communications, Inc.
8402 1760 480 15 Corbina telecom
10620 1729 322 168 TVCABLE BOGOTA
17974 1712 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1641 303 85 TPG Internet Pty Ltd
28573 1636 1069 71 NET Servicos de Comunicao S.A
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 3227 3027 Windstream Communications Inc
18566 2093 1916 Covad Communications
8402 1760 1745 Corbina telecom
1785 1863 1740 PaeTec Communications, Inc.
17974 1712 1677 PT TELEKOMUNIKASI INDONESIA
28573 1636 1565 NET Servicos de Comunicao S.A
10620 1729 1561 TVCABLE BOGOTA
7545 1641 1556 TPG Internet Pty Ltd
4766 2468 1493 Korea Telecom (KIX)
7552 1424 1417 Vietel Corporation
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
37.49.160.0/20 12688 CJSC "Baikal-TransTeleCom"
37.49.176.0/21 12688 CJSC "Baikal-TransTeleCom"
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 /10:27 /11:80 /12:232
/13:459 /14:818 /15:1463 /16:12156 /17:6164 /18:10268
/19:20304 /20:28156 /21:29098 /22:39356 /23:36811 /24:205162
/25:1180 /26:1421 /27:783 /28:14 /29:6 /30:5
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2847 3227 Windstream Communications Inc
6389 2116 3446 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1739 1760 Corbina telecom
10620 1624 1729 TVCABLE BOGOTA
30036 1410 1451 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1063 1863 PaeTec Communications, Inc.
15557 1046 1095 LDCOM NETWORKS
7011 1033 1149 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:507 2:471 4:14 5:1 6:3 8:379
12:1959 13:1 14:590 15:11 16:3 17:6
20:9 23:119 24:1723 27:1190 31:825 32:65
33:2 34:2 36:8 37:104 38:794 40:114
41:3148 42:87 43:1 44:3 46:1257 47:3
49:320 50:515 52:13 54:1 55:7 56:3
57:38 58:953 59:491 60:346 61:1161 62:921
63:1976 64:4130 65:2286 66:4407 67:2034 68:1152
69:3149 70:915 71:431 72:1799 74:2647 75:445
76:321 77:971 78:909 79:512 80:1193 81:874
82:558 83:529 84:587 85:1144 86:748 87:908
88:342 89:1537 90:257 91:4464 92:533 93:1552
94:1313 95:1144 96:414 97:306 98:787 99:38
100:20 101:130 103:685 106:4 107:135 108:129
109:1458 110:689 111:838 112:425 113:525 114:605
115:758 116:869 117:723 118:898 119:1259 120:355
121:682 122:1620 123:1058 124:1339 125:1356 128:542
129:190 130:210 131:590 132:162 133:21 134:233
135:59 136:213 137:153 138:290 139:145 140:488
141:260 142:378 143:418 144:515 145:68 146:488
147:225 148:691 149:271 150:166 151:193 152:443
153:170 154:7 155:399 156:210 157:367 158:154
159:509 160:334 161:237 162:339 163:188 164:532
165:391 166:561 167:458 168:766 169:147 170:833
171:111 172:4 173:1782 174:569 175:415 176:390
177:483 178:1231 180:1226 181:43 182:701 183:273
184:440 185:1 186:1517 187:830 188:960 189:1174
190:5389 192:5979 193:5478 194:4207 195:3393 196:1289
197:170 198:3592 199:4339 200:5706 201:1719 202:8421
203:8597 204:4351 205:2442 206:2748 207:2809 208:4036
209:3559 210:2746 211:1475 212:1980 213:1830 214:853
215:96 216:4980 217:1470 218:558 219:341 220:1250
221:558 222:324 223:273
End of report
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