GB United Kingdom Major Regions Postal Code Details
๐๏ธ Newport (casnewydd) ยท Wales
NP20 4DP
Baneswell
NP10 8LY
Bassaleg
NP20 7XX
Bettws
NP18 2DZ
Bishton
NP20 5PZ
Blaen Y Pant
NP18 1QD
Caerleon
CF3 2UX
Castleton
NP18 1LD
Catsash
NP19 4RG
Celtic Business Park
NP10 8BE
Celtic Lakes
NP18 1JZ
Christchurch
NP10 8AG
Coedkernew
NP10 8WU
Duffryn
NP18 2AW
Goldcliff
NP18 1JS
Kemeys Inferior
NP18 2LB
Langstone
NP19 4QU
Leeway Industrial Estate
NP19 4NQ
Liswerry
NP26 3TS
Llandavenny
NP18 2AE
Llandevaud
NP18 2HZ
Llanmartin
NP26 3FF
Llanvaches
NP18 2DX
Llanwern
NP10 8GG
Lower Machen
NP20 3DP
Maesglas
NP20 6LX
Malpas
CF3 2NA
Marshfield
CF3 6XT
Michaelston-Y-Fedw
NP18 2BY
Nash
NP19 4QP
Newport
NP26 3AB
Parc Seymour
NP26 3GB
Penhow
CF3 2TN
Peterstone Wentlooge
NP19 4SS
Queensway Meadows Industrial Estate
NP26 3DZ
Redwick
NP19 4PW
Reevesland Industrial Estate
NP10 8RN
Rhiwderin
NP10 9NR
Rogerstone
NP10 8SE
Saint Brides Wentlooge
NP19 7TA
Saint Julians
NP18 2AY
Whitson
๐ฎGB United Kingdom Regional Postal Code FAQ & Postal Regulations
๐ฎ What is the basic format of a UK postcode?
A UK postcode consists of 5-7 alphanumeric characters, split into two parts: the outward code (area and district) and inward code (specific street/building). Examples: SW1A 1AA (London) or M1 1AE (Manchester).
๐ How to find or validate a UK postcode?
Use Royal Mail's free Postcode Finder tool on their official website to search by address, or third-party APIs for validation.
โ ๏ธ What happens if I write a wrong postcode?
Incorrect postcodes may cause delays, returns, or lost mail. For important items, use Tracked services and double-check the recipient's postcode.
๐ฌ Is a postcode mandatory for UK mail?
Yes! Postcodes are essential. Mail without a postcode or with errors faces significant delivery issues. Always write the postcode on a separate line at the end of the address (e.g., London SW1A 1AA).