[Talk-GB] Definitions of regions

[Andrew Black]

Not strictly an OSM question but people here might be able to help me.
I have a list of places with outwards postcodes (eg N1). 
I would like to group them into regions - London, North East, Midlands.

Does anyone know a suitable list of regions to use. I suspect the
regions and postcode boundaries don't exactly align but that doesnt
bother me for the purposes I need.

Thanks
Andrew