Changes in United Kingdom Postcodes

The United Kingdom postcodes are alphanumeric and are variable in length including a space such as “SW1A 1AA”.

Each postcode is divided into two parts separated by a single space known as the outward code and the inward code respectively. The outward code includes the postcode area and the postcode district. The inward code includes the postcode sector and the postcode unit.

IP2Location has a granularity down to city level. Therefore, we will remove the inward code in all releases to better reflect the precision of geolocation. For example, you will see “SW1A” in the IP2Location database and not the complete postcode.

The changes will take effect from February 1, 2020 update onward.

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