Areal is available for purchase at Satoexchange. Trading in 5 pairs:

https://www.satoexchange.com/market/AREAL/BTC
https://www.satoexchange.com/market/AREAL/ETH
https://www.satoexchange.com/market/AREAL/LTC
https://www.satoexchange.com/market/AREAL/DOGE
https://www.satoexchange.com/market/AREAL/SATX (internal exchange token)