Hashrate Distribution An estimation of hashrate distribution amongst the largest mining pools

The graph below shows the market share of the most popular bitcoin mining pools. It should only be used as a rough estimate and for various reasons will not be 100% accurate. A large portion of Unknown blocks does not mean an attack on the network, it simply means we have been unable to determine the origin.

24 hours - 48 hours - 4 Days

Known Blocks.

Relayed By count
AntPool 107
F2Pool 96
BW.COM 56
BTCChina Pool 45
Slush 32
KnCMiner 32
BTC Guild 22
GHash.IO 20
Eligius 18
Bitcoin Affiliate Network 6
Megabigpower 5
EclipseMC 5
Unknown with 1BwZeHJ Address 4
BitMinter 4
P2Pool 3
MegaBigPower 1

Unknown Blocks.

Relayed By count
45.55.165.166 11
76.65.50.111 10
148.251.6.214 10
121.41.32.229 10
5.9.90.133 7
31.146.211.3 4
178.79.179.49 4
138.91.94.19 4
91.108.68.155 3
50.116.59.118 3
37.59.44.40 3
193.187.79.76 3
91.121.14.45 2
82.221.108.26 2
5.9.97.106 2
46.4.3.125 2
46.105.62.121 2
31.170.110.127 2
212.71.238.204 2
176.9.0.19 2
95.211.216.235 1
93.174.90.32 1
93.174.90.30 1
89.248.169.6 1
88.198.9.165 1
87.119.222.193 1
84.200.17.20 1
83.170.104.91 1
81.95.157.115 1
80.240.137.116 1
72.11.148.180 1
66.194.38.253 1
62.210.124.28 1
54.77.225.4 1
54.213.254.200 1
54.213.230.83 1
54.154.44.169 1
5.9.65.46 1
5.153.60.162 1
216.49.158.161 1
213.155.7.24 1
198.100.147.145 1
195.154.241.135 1
195.154.114.229 1
195.12.180.94 1
194.6.233.38 1
188.191.97.208 1
184.72.238.42 1
178.62.254.121 1
173.254.235.34 1
169.57.12.244 1
164.15.10.189 1
162.243.132.6 1
148.251.83.196 1
148.251.236.175 1
144.76.13.207 1
143.215.129.126 1
125.39.33.131 1
121.41.102.20 1
121.40.205.76 1
119.254.101.126 1
109.80.207.237 1
108.61.167.16 1
107.150.62.234 1
106.185.33.253 1
104.200.24.180 1
104.194.28.194 1
1.34.168.128 1