Postcode unit
The postcode unit is two characters added to the end of the postcode sector. Each postcode unit generally represents a street, part of a street, a single address, a group of properties, a single property, a sub-section of the property, an individual organisation or (for instance Driver and Vehicle Licensing Agency) a subsection of the organisation. The level of discrimination is often based on the amount of mail received by the premises or business. Examples of postcode units include "SW1W 0NY", "PO16 7GZ", "GU16 7HF", or "L1 8JQ".
Validation
The format is as follows, where A signifies a letter and 9 a digit:
Format Coverage Example
AA9A 9AA WC postcode area; EC1–EC4, NW1W, SE1P, SW1 EC1A 1BB
A9A 9AA E1W, N1C, N1P W1A 0AX
A9 9AA B, E, G, L, M, N, S, W M1 1AE
A99 9AA B33 8TH
AA9 9AA All other postcodes CR2 6XH
AA99 9AA DN55 1PT
Bookmarks