The Belgian Institute for Post and Telecommunications (BIPT) has announced that cellular operators Proximus and Mobistar have agreed a plan covering slight changes to their 900MHz spectrum allocations. Last year, the two cellcos – along with third operator BASE – had their 900MHz licences renewed, with effect from November 2015. While the providers had applied for their original frequency assignments, there were minor alterations to the guard bands. Belgacom’s mobile unit Proximus and Mobistar, which is backed by Orange of France, have now agreed a two-stage plan covering the spectrum moves, ignoring the BIPT’s proposed four-step plan. Spectrum belonging to BASE was not affected by the moves.