Before You Buy - Coverage Blackspots

Earthworm

Just thought I would post a map the Guardian have managed to build displaying coverage black-spots users have reported to them with particular networks. It makes a good read if you are thinking of jumping ship.

http://www.theguardian.com/money/datablog/interactive/2013/oct/29/uk-mobile-phone-coverage-interactive-map-signal

giraffe69

I don't think it makes good reading at all. It is a map of those who have whined. It is not scientific in any way and 900 out of heaven knows how many phones is not a very representative sample.
Someone on the comment sbelow the map suggests http://www.rootmetrics.com/uk/ which has over 700 million samples for the main networks and a free app you can use to add to this. Seems a better bet to me. I've downloaded the app.

Earthworm

True at the moment it doesn't give you the whole picture but it will improve. If I spent a lot of time in a certain area and this map showed it as a blackspot with a network I was considering it would at least make me want to test out a PAYG SIM in that area first. I don't think it is entirely fair to state the 900 users were just whining when networks are turning off masts across the country.