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
F2Pool 115
AntPool 80
BW.COM 69
BTCChina Pool 44
KnCMiner 29
Slush 26
BTC Guild 26
GHash.IO 17
Eligius 9
Bitcoin Affiliate Network 7
EclipseMC 6
BitMinter 5
Unknown with 1BwZeHJ Address 4
P2Pool 4
Kano CKPool 4
Megabigpower 3
Unknown with 1MimPd6 Address 2
MegaBigPower 1

Unknown Blocks.

Relayed By count
80.92.188.45 9
31.146.211.3 7
54.191.70.102 6
213.163.64.31 5
54.93.55.131 4
88.198.68.35 3
85.214.146.253 3
5.199.133.88 3
211.149.223.99 3
92.222.110.210 2
88.198.17.7 2
74.113.69.9 2
66.194.38.250 2
37.59.44.40 2
212.83.154.95 2
178.79.179.49 2
162.245.217.119 2
158.85.83.84 2
148.251.6.214 2
104.193.40.248 2
94.24.36.25 1
93.153.20.17 1
91.230.200.134 1
91.121.184.51 1
89.248.164.64 1
88.198.255.193 1
85.25.176.174 1
83.162.196.192 1
72.14.184.18 1
71.202.21.128 1
70.38.71.20 1
66.194.38.254 1
54.69.13.36 1
54.67.16.176 1
50.143.170.110 1
50.116.33.92 1
5.9.65.46 1
46.4.105.19 1
46.243.48.4 1
46.165.220.71 1
45.55.165.166 1
37.120.174.152 1
23.81.90.145 1
23.23.76.153 1
216.49.158.161 1
212.83.191.29 1
212.47.217.129 1
211.149.208.118 1
198.50.184.123 1
195.12.180.94 1
193.187.79.76 1
192.99.45.206 1
188.138.122.219 1
176.31.216.47 1
168.62.208.52 1
162.243.9.27 1
162.243.212.115 1
162.243.132.6 1
162.105.164.62 1
146.185.19.30 1
138.91.94.19 1
108.59.12.167 1
108.59.12.163 1
108.51.35.105 1
108.16.18.111 1
107.191.50.246 1
107.170.158.27 1
107.150.62.234 1