Fetchify’s Data Providers

Accurate data starts with the right source.

At Fetchify, we partner with the world’s most trusted data providers – from Royal Mail and Ordnance Survey to USPS and the Universal Postal Union – to give you access to the most reliable, frequently updated global address datasets. This means every lookup is powered by verified information, reducing failed deliveries, improving customer experience, and ensuring compliance across more than 250 countries.



That’s our Data Guarantee.

Fetchify’s address data providers

We partner with the world’s leading provider of address data, giving you access to address information from more than 250 countries.

We use Royal Mail’s Postcode Address File (PAF®) – the UK’s most accurate and frequently updated address database. With more than 30 million residential and business addresses and over 1.8 million postcodes, it is refreshed daily to reflect changes nationwide. Alongside PAF®, we integrate Royal Mail’s Multiple Residence (MR) dataset, adding over 800,000 individual addresses not visible in the core file, and the Not Yet Built (NYB) dataset, capturing new properties before they officially come to market. Together, these sources ensure Fetchify delivers the most complete, up-to-date, and reliable UK address validation available.

As Great Britain’s national mapping agency, Ordnance Survey provides authoritative location data that underpins services across both the public and private sectors. Their datasets enrich Fetchify address validation with precision geocodes and Unique Property Reference Numbers (UPRNs), helping businesses link customer records to accurate geographic identifiers. This enables more reliable deliveries, improved analysis, and seamless integration with other location-based services.

As the United Nations’ specialised agency for postal services, the UPU connects national postal authorities across more than 190 countries. Their global addressing standards and reference data enable Fetchify to validate and format international addresses consistently, ensuring reliable cross-border deliveries and smoother international commerce.

Eircode is the official address provider for the Republic of Ireland. Using the ECAD and ECAF datasets enhances coverage of residential and business postal addresses in Ireland, plus additional data, including alias address information and coordinates.

Eircodes

The United States Postal Service (USPS) handles 48% of all the world's mail. Our Address Auto-Complete tool includes all US ZIP and ZIP+4 searching.

The world's leading location platform, HERE covers over 100 countries and over 400 million addresses.

Kadaster provides access to the widest range of housing-related information, such as Statistics Netherlands, NL Agency, the NBWO and the Land Registry.

With approximately 1.8 million delivery points, The Postal Address File (PAF) is New Zealand's most complete and up-to-date database of postal addresses.