Majority-owned by Craig McCaw, Clearwire had filed for an IPO earlier this year, but put the plans on the backburner after raising $900m from investors including Motorola and Intel.

The flotation will come just four years after billionaire McCaw founded the company, which has never made a profit. He became a billionaire in 1994 when he sold his US mobile network to AT&T for $11.5bn.

In Ireland, the company has had mixed success, with anecdotal evidence suggesting that the service it provides is no longer as good as it was when it began last year. The company recently began blocking access to so-called peerto-peer file sharing networks that enable users around the world to share files such as music tracks and films.

Bloomberg