SN postcode area
These cover north Wiltshire ( including Swindon , Chippenham , Calne , Corsham , Devizes , Malmesbury , Marlborough , Melksham and Pewsey ) , plus a small part of south-west Oxfordshire ( including Faringdon ) and a very small part of Gloucestershire . 
<triplet> Oxfordshire <subj> Wiltshire <obj> shares border with