Ofcom have published digital television transmitter group maps which detail the locations of digital transmitters in a tv region. These maps provide guidance on what transmitter groups there are in a particular tv region. Below is a list of Ofcom maps, these are updated regularly as digital switchover planning progresses:

Digital UK have provided regional transmitter group maps and these are designed to communicate to viewers which transmitter groups are within a particular region. Below is a list of regional maps as provided by Digital UK: