Coverage
Postcode lookup in Cardiff
Look up and verify Cardiff addresses with the Locatebase API. Cardiff, the capital of Wales, is served by the CF postcode area covering the city and South Wales valleys.
Address lookup for Cardiff
Cardiff sits in Wales. Whether you are powering checkout, onboarding, or delivery, Locatebase returns clean, structured Cardiff addresses from a single API request.
Cardiff, the capital of Wales, is served by the CF postcode area covering the city and South Wales valleys.
How to look up a postcode
- Send the postcode — Make a request with the postcode and your API key.
- Receive addresses — Get every matching Cardiff address as structured JSON.
- Use the data — Autocomplete forms, validate input, or enrich records.
Frequently asked questions
Which postcode areas cover Cardiff?
Cardiff is primarily served by the CF postcode area. Locatebase covers these and the wider UK.
Which addresses does Locatebase cover?
Locatebase provides comprehensive UK address and postcode coverage, kept current so your lookups stay accurate.
How much does Locatebase cost?
Locatebase uses simple monthly plans from £19/month, each with an included lookup allowance. Need more? Extra lookups are billed automatically from 2p each, depending on your plan. See the pricing page for current plans.