GB United Kingdom Major Regions Postal Code Details
๐๏ธ Caerphilly (caerffili) ยท Wales
CF81 9FG
Aberbargoed
NP11 5EY
Abercarn
CF83 4DF
Abertridwr
NP22 5AL
Abertysswg
NP12 0HW
Argoed
CF81 8UD
Bargoed
CF83 8AE
Bedwas
CF83 8YG
Bedwas House Industrial Estate
NP12 0BD
Bedwellty
NP12 1AL
Blackwood
NP12 3PF
Bonnie View
NP24 6HY
Brithdir
CF83 2BT
Caerphilly
CF81 9HG
Deri
NP10 8GL
Draethen
CF82 7TT
Dyffryn Business Park
NP24 6EB
Elliots Town
CF83 2UY
Energlyn
NP12 3FX
Fairview
NP12 3RT
Fleur De Lis
CF81 9NB
Fochriw
CF82 8DT
Gelligaer
NP12 2JD
Gelligroes
NP12 2QA
Gellihaf
CF81 8JF
Gilfach
NP12 3XF
Glan Y Nant
CF15 7US
Groeswen
NP12 1GP
Grove Park
NP11 5BE
Hafodyrynys
CF82 7TD
Hengoed
NP12 0SD
Hollybush
NP12 2ES
Libanus Fields
CF83 3NG
Llanbradach
CF46 6PJ
Llanfabon
NP22 5QX
Llechryd
NP12 2HY
Lower Gelligroes
CF83 8SD
Machen
CF82 7PF
Maesycwmmer
NP12 0GA
Manmoel
NP12 0RY
Markham
NP11 7BA
Mynyddislwyn
CF46 6LP
Nelson
NP12 2BB
New Bethel
NP24 6NY
New Tredegar
NP11 5FF
Newbridge
NP12 0EY
Oakdale
NP12 4AA
Oakdale Business Park
NP11 6EL
Ochrwyth
CF48 4AR
Pant-Y-Waun
NP11 5AG
Pantyresk
NP11 3XG
Pen-Y-Fan Industrial Estate
CF82 6GU
Penallta
CF82 7SS
Penallta Industrial Estate
NP12 3TG
Pengam
NP12 0UQ
Penmaen
CF82 7TB
Penpedairheol
CF81 9NP
Pentwyn
NP11 3JT
Pentwyn Crumlin
NP11 4HG
Pentwynmawr
CF82 7PS
Penybryn
CF83 2RH
Penyrheol
NP24 6BN
Phillipstown
NP12 2JH
Pontllanfraith
CF81 9RN
Pontlottyn
NP11 7FY
Pontywaun
CF83 3RZ
Porset
NP22 3AF
Princetown
CF83 3RL
Pwllypant
NP22 5HR
Rhymney
NP22 5QF
Rhymney Bridge
NP11 6AL
Risca
CF83 3EH
Rudry
CF83 4GP
Senghenydd
NP12 1HU
Sunnybank
NP12 2HA
The Bryn
NP12 0EB
The Rhiw
NP12 1DA
The Rock
CF83 1LX
Thornhill
CF82 8BE
Tir-Y-Berth
NP24 6HG
Tirphil
CF83 8FY
Trethomas
NP11 3LG
Trinant
NP24 6LR
Troedrhiwfuwch
NP12 2HT
Upper Gelligroes
NP12 3FG
Upper Trelyn
CF83 8NT
Waterloo
NP11 7QX
Wattsville
CF83 3DB
Wernddu
CF83 8QP
White Hart
NP12 0PD
Woodfieldside
NP12 2HJ
Wyllie
NP11 7JP
Ynysddu
CF82 7EP
Ystrad Mynach
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).