MPs have supported calls for each antenna to be clearly marked. Phil Willis, MP for Harrogate and Knaresborough, said: "Nobody will ever know for sure of these are 100 per cent safe, but there has to be an open consultation process to decide where to put them. I'd like to see clear signs put on lamp posts containing masts. Potentially, everyone could have one outside their house. It could easily turn into a publicity disaster for mobile phone networks."