Poland’s long-running auction of radio spectrum has pulled in nearly $2.5 billion in bids from four operators, Reuters reported Thursday.

Opened in February, the auction set five blocks of 800 MHz spectrum and 14 blocks of 2.6 GHz up for sale to be used by mobile broadband operators for 4G services and was originally expected to bring in around $429 million for the government.

Among those bidding were France’s wireless operator Orange, Deutsche Telekom, Polish media company Cyfrowy Polsat and P4.

Winners of the auction have not yet been announced.