The UB postcode area, also known as the Southall postcode area, is a group of eleven postcode districts in England, within six post towns. These cover parts of western and north-western Greater London, plus a very small part of Buckinghamshire. The letters in the postcodes are the phonemic abbreviation of Uxbridge.
The B postcode area, also known as the Birmingham postcode area, is a group of 79 postcode districts in central England, within 15 post towns. These cover the central portion of the West Midlands, plus northeast Worcestershire, north and west Warwickshire, and part of southeast Staffordshire and a very small part of Leicestershire. It is the most populated postcode area in the United Kingdom, with a population of over 1.9 million.
The BN postcode area, also known as the Brighton postcode area, is a group of 30 postcode districts in South East England, within 18 post towns. These cover southwestern East Sussex and southeastern West Sussex. The main sorting office is at the Gatwick Mail Centre in Crawley.
The DY postcode area, also known as the Dudley postcode area, is a group of fourteen postcode districts in England, within eight post towns. These cover the south-western part of the West Midlands and north Worcestershire, plus the south-westernmost part of Staffordshire and a small part of south-east Shropshire.
The SG postcode area, also known as the Stevenage postcode area, is a group of nineteen postcode districts in England, within fifteen post towns. These cover most of Hertfordshire and east Bedfordshire, plus a small part of south-west Cambridgeshire and a very small part of Essex.
The SS postcode area, also known as the Southend-on-Sea postcode area, is a group of seventeen postcode districts in England, within eleven post towns. These cover south-east Essex, including Southend-on-Sea, Basildon, Benfleet, Canvey Island, Hockley, Leigh-on-Sea, Rayleigh, Rochford, Stanford-le-Hope, Westcliff-on-Sea and Wickford.
The OL postcode area, also known as the Oldham postcode area, is a group of sixteen postcode districts in north-west England, within seven post towns. These cover eastern Greater Manchester, plus small parts of east Lancashire and western West Yorkshire.
The NR postcode area, also known as the Norwich postcode area, is a group of 35 postcode districts in the east of England, within 16 post towns. These cover central, north and eastern Norfolk and part of north-east Suffolk.
The DL postcode area, also known as the Darlington postcode area, is a group of seventeen postcode districts in England, which are subdivisions of fourteen post towns. These districts cover central County Durham, northern North Yorkshire and a very small part of Cumbria.
The DH postcode area, also known as the Durham postcode area, is a group of nine postcode districts in north-east England, within five post towns. These cover northern County Durham, parts of southern Tyne and Wear and a small part of southern Northumberland.
The WF postcode area, also known as the Wakefield postcode area, is a group of 17 postcode districts in north-east England, which are subdivisions of eleven post towns. These cover much of southern and eastern West Yorkshire, plus small parts of South and North Yorkshire.
The PL postcode area, also known as the Plymouth postcode area, is a group of 35 postcode districts in South West England, within 25 post towns. These cover west Devon and east Cornwall.
The TQ postcode area, also known as the Torquay postcode area, is a group of fourteen postcode districts in South West England, within eleven post towns. These cover much of south Devon, including Torquay, Paignton, Newton Abbot, Brixham, Ashburton, Buckfastleigh, Dartmouth, Kingsbridge, Salcombe, South Brent, Teignmouth and Totnes.
The SN postcode area, also known as the Swindon postcode area, is a group of eighteen postcode districts in England, within ten post towns. These cover north Wiltshire, plus a small part of south-west Oxfordshire and a very small part of Gloucestershire.
The GL postcode area, also known as the Gloucester postcode area, is a group of 27 postcode districts in south-west England and a very small part of south-east Wales, within 28 post towns. These cover most of Gloucestershire, including Gloucester, Cheltenham, Stroud, Cirencester, Tewkesbury, Badminton, Berkeley, Blakeney, Chipping Campden, Cinderford, Coleford, Drybrook, Dursley, Dymock, Fairford, Lechlade, Longhope, Lydbrook, Lydney, Mitcheldean, Moreton-in-Marsh, Newent, Newnham, Ruardean, Stonehouse, Tetbury, Westbury-on-Severn and Wotton-under-Edge. The area also covers very small parts of Herefordshire, Worcestershire, Warwickshire, Oxfordshire and Wiltshire, while the GL16 district extends across the Welsh border to cover a very small part of Monmouthshire.
The WR postcode area, also known as the Worcester postcode area, is a group of fifteen postcode districts in England, within seven post towns. These cover central and southern Worcestershire, plus very small parts of Herefordshire, Shropshire, Warwickshire and Gloucestershire.
The ST postcode area, also known as the Stoke-on-Trent postcode area, is a group of 21 postcode districts in England, within six post towns. These cover much of north and central Staffordshire, plus very small parts of Cheshire and Derbyshire.
The CT postcode area, also known as the Canterbury postcode area, is a group of 21 postcode districts in South East England, within 13 post towns. These cover much of east Kent, including Canterbury, Dover, Folkestone, Birchington, Broadstairs, Deal, Herne Bay, Hythe, Margate, Ramsgate, Sandwich, Westgate-on-Sea and Whitstable.
The BB postcode area, also known as the Blackburn postcode area, is a group of thirteen postcode districts in north-west England, within nine post towns. These cover east Lancashire, including Blackburn, Burnley, Accrington, Barnoldswick, Clitheroe, Colne, Darwen, Nelson and Rossendale.
The L postcode area, also known as the Liverpool postcode area, is a group of postcode districts in North West England. Together they cover central and southern Merseyside, southern West Lancashire, and a small part of north-west Cheshire. Its four post towns are Bootle, Liverpool, Ormskirk, and Prescot.
