Merseyside, Cheshire, Lancashire
Warrington
- WA1, WA2: Central Warrington and surrounding inner suburbs.
- WA3: Birchwood, Culcheth, Golborne, and Lowton.
- WA4: Stockton Heath, Appleton, Grappenhall, and Daresbury.
- WA5: Penketh, Great Sankey, Burtonwood, and Westbrook.
- WA13: Lymm
Runcorn & Widnes
- WA7 1 Town Centre, Runcorn Old Town, Halton Brook
- WA7 2 Halton Lodge, Hallwood Park, Palacefields
- WA7 3 Murdishaw, Brookvale, Norton
- WA7 4 Beechwood, Heath, Weston, Clifton
- WA7 5 Windmill Hill, Sandymoor, Astmoor
- WA7 6 Preston Brook, Daresbury, Sutton Weaver
- WA8 0 Town Centre, West Bank, Appleton
- WA8 3 Upton, Ditton, Hale Bank
- WA8 7 Hough Green, Cronton
- WA8 8 Upton Rocks, Farnworth
- WA8 9 Preferred residential areas towards the M62/Rainhill
Ormskirk & Southport
- PR8: Covers central Southport, Birkdale, Ainsdale, and Hesketh Park.
- PR9: Covers northern Southport, Blowick, Crossens, Marshside, Churchtown, and the village of Banks.
- L39: Covers Ormskirk town center, Aughton, and surrounding areas.
- L40: Covers surrounding villages and parishes including Scarisbrick, Burscough, and Rufford
St Helens
- WA10: St Helens Town Centre, Eccleston, West Park, and Windle.
- WA11: Haydock, Moss Bank, Crank, and Rainford.
- WA9: Clock Face, Sutton, and Thatto Heath.
- WA12: Newton-le-Willows and Earlestown
Wigan & Skelmersdale
- WN1 & WN2: Wigan Town Centre, Worsley Mesnes, Ince, Scholes, and Aspull
- WN3: Worsley Hall, Swinley, and Marus Bridge
- WN4 & WN5: Ashton-in-Makerfield, Orrell, and Pemberton
- WN6 & WN7: Standish, Appley Bridge, and Leigh
- WN8: Skelmersdale (West Lancashire)
Liverpool
Main postcode area is L
- L1: City Centre, Liverpool One, Ropewalks, Chinatown
- L2: City Centre, Business District, Castle Street
- L3: City Centre, Waterfront, Albert Dock, Vauxhall
- L4: Anfield, Kirkdale, Walton
- L5: Everton, Kirkdale, Vauxhall
- L6: Anfield, Everton, Fairfield, Kensington, Tuebrook
- L7: Edge Hill, Wavertree, Fairfield, Kensington
- L8: Dingle, Toxteth, Baltic Triangle
- L9: Aintree, Fazakerley, Orrell Park, Walton
- L10: Aintree Village, Fazakerley, Kirkby
- L11: Norris Green, Gillmoss, Croxteth
- L12: West Derby, Croxteth Park
- L13: Old Swan, Stoneycroft, Tuebrook
- L14: Knotty Ash, Dovecot, Page Moss
- L15: Wavertree, Picton
- L16: Childwall, Broadgreen
- L17: Aigburth, St Michael's Hamlet, Sefton Park
- L18: Allerton, Mossley Hill
- L19: Aigburth, Garston, Grassendale
- L20: Bootle, Orrell
- L21: Litherland, Ford
- L24: Speke, Oglet
- L25: Belle Vale, Woolton, Gateacre
- L26: Halewood
- L27: Netherley
- L28: Huyton, Roby, Tarbock
- L30: Netherton, Bootle
- L31: Maghull, Lydiate
- L32: Kirkby, Northwood, Southdene
- L33: Kirkby Industrial Estate, Tower Hill
- L34: Prescot, Whiston
- L35: Prescot, Rainhill, Whiston
Manchester & Salford
Main postcode area is M
- M1: Piccadilly, Northern Quarter, Market Street, and part of the Oxford Road corridor.
- M2: Deansgate, King Street, and central business district.
- M3: Blackfriars, Deansgate (part), and parts of neighbouring Salford.
- M4: Ancoats, New Islington, and the Northern Quarter.
- M5 & M6: Salford, University of Salford, Pendleton, and Claremont
- M7: Broughton and Higher Broughton.
- M8: Cheetham Hill and Crumpsall.
- M9: Harpurhey and Blackley.
- M11: Clayton, Openshaw, and Beswick.
- M12 / M13: Ardwick, Longsight, and Chorlton-on-Medlock.
- M14: Fallowfield, Moss Side, Ladybarn, and Rusholme (popular for student housing).
- M15: Hulme, Castlefield, and Cornbrook.
- M16: Whalley Range, Old Trafford, and Firswood.
- M18: Abbey Hey and Gorton.
- M19: Levenshulme and Burnage.
- M20: Didsbury and Withington.
- M21: Chorlton-cum-Hardy.
- M22 & M23: Wythenshawe, Baguley, and Northenden.
- M33: Sale
- M41: Urmston
- M30: Eccles
- M32: Stretford
- M34: Denton
- M44: Irlam