International address validation checks that addresses across multiple countries are real, deliverable and correctly formatted. AutoPostcode is UK-first: it delivers definitive UK results from Royal Mail's Postcode Address File — around 31 million deliverable addresses across roughly 1.8 million postcodes — while its international coverage grows on a demand-led roadmap. For UK-heavy businesses, that means best-in-class accuracy where most of your deliveries land, and a clear path abroad.
Does AutoPostcode validate international addresses?
AutoPostcode leads with authoritative UK validation and is expanding internationally based on customer demand. If you have global markets, review pricing and talk to us about the specific countries and volumes you need so we can advise on current support and roadmap timing.
What coverage is available today?
| Region | Status | Data source |
|---|---|---|
| United Kingdom | Live · full coverage | Royal Mail PAF |
| Ireland & EU | On roadmap | Partner data |
| North America | On roadmap | Partner data |
| Rest of world | On request | Partner data |
Why start with a UK-first provider?
Most UK businesses see the majority of their deliveries at home, where address quality has the biggest impact on cost and experience. Starting with PAF-grade accuracy through our UK address validation API and full UK address verification gives you results where it counts — without locking you out of international expansion.
- Authoritative UK data from Royal Mail PAF
- One vendor as you expand into new markets
- Developer-friendly REST API and plugins
- Transparent, affordable pricing
Talk to us about your markets
Tell us where your customers are and we'll map current support to your needs — start with the UK today and grow with our roadmap.
Frequently asked questions
What is international address validation?
International address validation is the process of checking that addresses in multiple countries are real, deliverable and correctly formatted. AutoPostcode leads with authoritative UK coverage — Royal Mail PAF's ~31 million addresses across ~1.8 million postcodes — and supports international needs through its roadmap and partners.
Does AutoPostcode validate non-UK addresses?
AutoPostcode is UK-first, using Royal Mail PAF for definitive UK results. International coverage is expanding; talk to us about the specific countries you need and we'll advise on current support and roadmap timing.
Which countries are supported?
The UK is fully supported today with PAF-verified data. Additional territories are being added to the roadmap based on customer demand — contact us with your target markets and volumes.
Why choose a UK-first provider for international needs?
Most UK businesses have the majority of their deliveries in the UK, where address quality matters most. A UK-first provider gives you authoritative PAF accuracy where it counts, plus a path to international coverage without switching vendors.
How accurate is the UK data?
UK results come straight from Royal Mail PAF, the official record of every deliverable UK address, so accuracy is authoritative and continuously updated.
How is this different from Loqate or Ideal Postcodes?
AutoPostcode offers the same PAF-grade UK accuracy with a developer-friendly integration and clearer, more affordable pricing — a modern alternative to Loqate, Fetchify and Ideal Postcodes.
Ready to get started?
Add Royal Mail PAF-verified UK address lookup to your site in minutes — start free, no card required.