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Royal Mail Address Lookup API

Royal Mail's PAF(r) is the definitive UK address database. This contains postal addresses of over 30 million properties across the UK. It is used by nearly every delivery company in the country. In addition to delivering mail, the file is also used in mapping, satellite navigation, and customer profiling.



The PAF is available to organisations ranging from small businesses to large enterprises. These include warehouses and credit check companies. Some of the most notable users include e-commerce sites, who use the API to power a postcode lookup service.


The Royal Mail PAF is an open database. You can obtain access to it by registering for an account and signing up for an access token. Once you have signed up for an account, you will be able to request access to the data by providing your 20 character access token.


One of the most important things to know about the Royal Mail's PAF is that it changes with the times. When it first went online in the early 1980s, it received 200 to 600 updates a day. However, today it is receiving thousands of updates per day.


Aside from the many ways in which you can access the PAF, the service can also be augmented with the services of Data8, which is a UK premier data solutions provider. They offer a comprehensive range of data cleansing and validation services, as well as a postcode lookup service.



Postcoder, a web-based address verification service, offers the best of both worlds. Not only does it provide a full suite of address verification and mapping services, but it also boasts ultra-fast response times and free technical support.


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