BA postcode area
These cover east Somerset ( including Bath , Yeovil , Bruton , Castle Cary , Frome , Glastonbury , Radstock , Shepton Mallet , Street , Templecombe , Wells and Wincanton ) and west Wiltshire ( including Bradford on Avon , Trowbridge , Warminster and Westbury ) , plus a very small part of north-west Dorset . 
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