Quick Account Setup on Ideal Postcodes

Step by Step Guide on Creating an Ideal Postcodes Account, Creating a Key and Enabling Automated Top-ups

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Address Autocomplete

What Is Address Autocomplete and How Is It Useful?

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Address Cleanse

Understanding Address Cleanse

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Address Database

Extract UK Address Lists to Power Your Database and Bolster Your Marketing Strategies

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Address Validation

What Is Address Validation and How Does It Work?

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Address Verification System or Address Validation?

Address Verification System and Address Validation sound alike, but they are tools which have different uses

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PAF Alias Data

What is alias in a delivery address?

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What is an Eircode

A guide about Eircode

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End User - Who Is Licensed to Use the Data?

Identifying the Final User of Royal Mail's Dataset

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Fuzzy Address Search

How you can reduce address entry errors and improve search results in real time

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What is Gaeltrecht

The significance of Gaeltrecht and preserving the Irish language - Gaelic

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What are Geocodes?

Understanding the Importance of Geocodes and Their Use Cases

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Glossary

A Glossary of Address Terms

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UK Address Guidelines

Ensure your mail is correctly addressed with our UK clear addressing guidelines

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Internal User Licensing

What Is an Internal User? When Is It Correct to License This Way?

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MicroMkt Address Validation

Add Address Validation to Your MicroMkt Suite in a Few Simple Steps

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Missing Address

Why Your Address Might Not Be Showing on Royal Mail's Postcode Address File

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Address Validation for Mobile Devices

How to improve your mobile conversions

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Multiple Residence

What is the Multiple Residence dataset and how is it used? Illustrations and examples of MR data

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NACE Codes

Nomenclature of Economic Activities - The Four Digit Classification Code

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Non-Unique Addresses

What is a non-unique address

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Not Yet Built Dataset

The Not Yet Built Dataset Is an Additional Database from Royal Mail That Lists Properties Currently in Planning or under Construction

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Office for National Statistics Postcode Directory (ONSPD) Licensing

ONSPD Licensing: How Data from Postcodes.io Can Be Used

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Allowed Characters in PAF

List of Characters Found in the Postcode Address File

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Postcode Areas

A complete list of UK postcode areas and regions

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Postcode Data List Directory

Links to Downloads of Various UK Postcode Data Lists

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Postcode Facts

Interesting Facts and Information About Postcodes

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Postcode Lookup or Address Finder

How to Choose Between Postcode Lookup and Address Finder

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Postcode Validation

How to Validate a UK Postcode. Evaluating the Trade-offs for Various Solutions Including Postcode Lookup Services, Proprietary Postcode Datasets, Free Datasets and Regular Expressions (Regex)

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Run Postcodes.io Database Locally

Run a Local Instance of the Latest Postcodes.io Database and Start Dispatching SQL Queries in Minutes

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Pricing Plans

Ideal Postcodes' Available Pricing Plans

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Reverse Address Geocoding

What is Reverse Geocoding and how is it useful?

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Royal Mail Charity Registration

A Guide to Completing the Royal Mail Charity Registration Form

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Screen Reader

Screen reader compatibility is available for our address validation solutions

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Sublicensing

Understanding How the Sublicensing Platform Works

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Thoroughfare Descriptors

List of Thoroughfare & Dependent Thoroughfare descriptors in the UK

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UDPRN: Unique Delivery Point Reference Number

Understanding the Unique ID Number Assigned to Every Premise in the UK

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The UK Postcode Format

A comprehensive outline of UK postcode patterns, its constituent components and how they can be utilised. Split a postcode into outward code, inward code, postcode area, district code, sub-district code, postcode sector and postcode unit.

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UPRN: Unique Property Reference Number

What Is a UPRN, Its Uses and How It Complements the Postcode Address File

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USRN: Unique Street Reference Number

Understanding the Unique Identifier for Every Street Across Great Britain

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What Is the Postcode Address File (PAF®)?

The Most Accurate and Reliable Address Dataset for the UK, Provided by Royal Mail

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