I just received the following text from 02
To improve your local network and help keep everyone connected, we're carrying out essential work in CV35 7PN.
While we do, your signal might come and go. We'll keep you posted though.
We'll start on 23 May and finish on 27 May.
Keep tabs on our progress: http://v.o2.co.uk/J7r9v9b6
The thing is I live in Bristol and this postcode looks like a Coventry postcode.