Various types of brokers are available on the market, including ECN, STP and Market maker. Among these ECN brokers are King. ECN stands for electronic communications network, it is really the way of the future for foreign exchange markets. The ECN can best be described as a bridge connecting small market participants with its liquidity providers through a Forex ECN broker. AAFX is an ECN as well as the best trading brokers offering a high level of financing security, fast withdrawal and faster execution.