PAF & UK Address Data

What is PAF data?

PAF data is the content of Royal Mail's Postcode Address File — the official, continuously updated record of every deliverable address and postcode in the UK.

No card required · Royal Mail PAF-verified data

Trusted UK address intelligence

31M+
UK addresses
1.8M
Postcodes
99.9%
Uptime
PAF-verified address lookup
Fast REST API & no-code plugins
GDPR-friendly, UK-hosted

PAF data is what's inside the Royal Mail Postcode Address File: a structured database of every UK address and postcode. It's the reference businesses trust for verifying and standardising addresses.

What's in a PAF record

  • Organisation name (for business premises)
  • Building name and/or number
  • Thoroughfare (street) and dependent thoroughfare
  • Locality, post town and postcode

How businesses use PAF data

From ecommerce checkouts to CRM cleansing and logistics planning, PAF data ensures addresses are real, complete and correctly formatted. Access it compliantly via PAF data access or the PAF API.

Licensing

PAF is a licensed dataset — see how the licence works and how AutoPostcode handles it for you in the PAF guide.

Frequently asked questions

What is PAF data?

PAF data is the content of Royal Mail's Postcode Address File: every deliverable UK address and postcode, including premises names, building numbers, thoroughfares, localities and postcodes.

What does PAF data contain?

PAF contains around 31 million addresses and 1.8 million postcodes, with fields such as organisation name, building name and number, street, locality, town and postcode.

How accurate is PAF data?

PAF is the authoritative UK address dataset, updated continuously by Royal Mail, making it the most accurate and complete source for address verification.

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