Which currency pairs can I trade on margin?

Margin trading is available on the following currency pairs: XBT/EUR, XBT/USD, ETH/XBT, ETH/USD, ETH/EUR, ETC/XBT, ETC/ETH, ETC/USD, ETC/EUR, REP/XBT, REP/ETH, REP/EUR (note that the EUR pairs are not available in the US states of NH, TX and WA).