Routing Table Report 04:00 +10GMT Fri 03 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 395828
Prefixes after maximum aggregation: 169355
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 191905
Total ASes present in the Internet Routing Table: 39964
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32683
Origin ASes announcing only one prefix: 15518
Transit ASes present in the Internet Routing Table: 5387
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 316
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 2256
Number of 32-bit ASNs visible in the Routing Table: 1894
Prefixes from 32-bit ASNs in the Routing Table: 4586
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2512059600
Equivalent to 149 /8s, 186 /16s and 252 /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: 167910
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97699
Total APNIC prefixes after maximum aggregation: 31515
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 94001
Unique aggregates announced from the APNIC address blocks: 39022
APNIC Region origin ASes present in the Internet Routing Table: 4647
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1243
APNIC Region transit ASes present in the Internet Routing Table: 733
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: 138
Number of APNIC addresses announced to Internet: 635780960
Equivalent to 37 /8s, 229 /16s and 63 /24s
Percentage of available APNIC address space announced: 80.6
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: 148122
Total ARIN prefixes after maximum aggregation: 75384
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120094
Unique aggregates announced from the ARIN address blocks: 49304
ARIN Region origin ASes present in the Internet Routing Table: 14879
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5680
ARIN Region transit ASes present in the Internet Routing Table: 1578
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: 804102592
Equivalent to 47 /8s, 237 /16s and 161 /24s
Percentage of available ARIN address space announced: 63.9
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: 98082
Total RIPE prefixes after maximum aggregation: 52260
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89958
Unique aggregates announced from the RIPE address blocks: 55941
RIPE Region origin ASes present in the Internet Routing Table: 16286
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2592
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: 1317
Number of RIPE addresses announced to Internet: 498604680
Equivalent to 29 /8s, 184 /16s and 26 /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: 38135
Total LACNIC prefixes after maximum aggregation: 8042
LACNIC Deaggregation factor: 4.74
Prefixes being announced from the LACNIC address blocks: 37697
Unique aggregates announced from the LACNIC address blocks: 19443
LACNIC Region origin ASes present in the Internet Routing Table: 1567
LACNIC Prefixes per ASN: 24.06
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 292
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 420
Number of LACNIC addresses announced to Internet: 95916680
Equivalent to 5 /8s, 183 /16s and 146 /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: 9042
Total AfriNIC prefixes after maximum aggregation: 2082
AfriNIC Deaggregation factor: 4.34
Prefixes being announced from the AfriNIC address blocks: 7050
Unique aggregates announced from the AfriNIC address blocks: 2143
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.88
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30865920
Equivalent to 1 /8s, 214 /16s and 250 /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 2474 11102 982 Korea Telecom (KIX)
17974 1721 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1645 303 88 TPG Internet Pty Ltd
4755 1529 385 155 TATA Communications formerly
7552 1407 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1120 82 483 Sify Limited
4808 1102 2051 313 CNCGROUP IP network: China169
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
18101 950 130 155 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 3445 3807 201 bellsouth.net, inc.
7029 3223 1017 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 680 125 PaeTec Communications, Inc.
20115 1626 1552 627 Charter Communications
4323 1609 1062 384 Time Warner Telecom
22773 1498 2910 109 Cox Communications, Inc.
30036 1454 255 739 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1306 7009 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 1769 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 LDCOM NETWORKS
6830 642 1927 412 UPC Distribution Services
34984 641 188 172 BILISIM TELEKOM
20940 601 195 466 Akamai Technologies European
12479 561 642 54 Uni2 Autonomous System
3320 531 8162 397 Deutsche Telekom AG
8551 530 360 81 Bezeq International
31148 530 37 9 FreeNet ISP
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 1735 323 170 TVCABLE BOGOTA
28573 1636 1085 69 NET Servicos de Comunicao S.A
8151 1336 2995 344 UniNet S.A. de C.V.
7303 1258 756 180 Telecom Argentina Stet-France
26615 874 632 33 Tim Brasil S.A.
11172 697 95 75 Servicios Alestra S.A de C.V
27947 650 73 99 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
3816 550 237 91 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia 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 1233 958 13 TEDATA
24863 834 155 43 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 237 13 13 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
36923 180 20 4 Swift Networks Limited
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 3445 3807 201 bellsouth.net, inc.
7029 3223 1017 199 Windstream Communications Inc
4766 2474 11102 982 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1865 680 125 PaeTec Communications, Inc.
8402 1769 480 15 Corbina telecom
10620 1735 323 170 TVCABLE BOGOTA
17974 1721 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1645 303 88 TPG Internet Pty Ltd
28573 1636 1085 69 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 3223 3024 Windstream Communications Inc
18566 2093 1916 Covad Communications
8402 1769 1754 Corbina telecom
1785 1865 1740 PaeTec Communications, Inc.
17974 1721 1686 PT TELEKOMUNIKASI INDONESIA
28573 1636 1567 NET Servicos de Comunicao S.A
10620 1735 1565 TVCABLE BOGOTA
7545 1645 1557 TPG Internet Pty Ltd
4766 2474 1492 Korea Telecom (KIX)
7552 1407 1400 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
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /12:231
/13:458 /14:817 /15:1466 /16:12159 /17:6179 /18:10294
/19:20355 /20:28230 /21:29142 /22:39601 /23:36796 /24:206426
/25:1189 /26:1428 /27:785 /28:43 /29:59 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2853 3223 Windstream Communications Inc
6389 2115 3445 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1748 1769 Corbina telecom
10620 1629 1735 TVCABLE BOGOTA
30036 1413 1454 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1063 1865 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
8452 1037 1233 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:494 2:481 4:14 5:1 6:3 8:378
12:1954 13:1 14:595 15:11 16:3 17:6
20:9 23:124 24:1726 27:1187 31:849 32:65
33:2 34:2 36:8 37:130 38:792 40:114
41:3168 42:91 43:1 44:3 46:1279 47:3
49:321 50:518 52:13 54:2 55:8 56:3
57:38 58:956 59:490 60:345 61:1188 62:927
63:1996 64:4144 65:2288 66:4424 67:2041 68:1167
69:3148 70:916 71:410 72:1794 74:2642 75:452
76:320 77:968 78:927 79:498 80:1215 81:876
82:562 83:531 84:583 85:1161 86:746 87:910
88:341 89:1540 90:253 91:4478 92:539 93:1561
94:1332 95:1159 96:414 97:310 98:808 99:38
100:20 101:135 103:720 106:4 107:142 108:143
109:1466 110:687 111:842 112:426 113:526 114:596
115:758 116:865 117:723 118:903 119:1249 120:357
121:682 122:1625 123:1063 124:1337 125:1360 128:538
129:189 130:213 131:590 132:162 133:21 134:230
135:59 136:214 137:152 138:285 139:145 140:489
141:259 142:378 143:401 144:509 145:70 146:485
147:227 148:705 149:273 150:166 151:194 152:446
153:170 154:7 155:398 156:211 157:366 158:155
159:511 160:329 161:243 162:341 163:189 164:531
165:395 166:557 167:456 168:764 169:147 170:833
171:113 172:4 173:1774 174:591 175:414 176:472
177:460 178:1239 180:1176 181:64 182:703 183:269
184:430 185:1 186:2013 187:818 188:1029 189:1164
190:5439 192:5983 193:5522 194:4328 195:3394 196:1298
197:180 198:3610 199:4353 200:5713 201:1722 202:8423
203:8593 204:4347 205:2443 206:2747 207:2816 208:4062
209:3554 210:2741 211:1475 212:1979 213:1836 214:854
215:92 216:4986 217:1472 218:554 219:340 220:1253
221:558 222:324 223:274
End of report
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