Get postcode from address?

So I have part a, need part b

[Essel]

I'm talking Great Britain here.

Lets say I have all the address, streename, city, county but I don't have the postcode.

surely it's possible to find the rest automagically, any ideas?

[aspdaddy]

You need to purchase the Postcode Address File (PAF) from the Post Office.

[rocknbil]

Well, in the US the USPS has this integrated into the API tools and it can be queried programmatically, perhaps your postal service has the same ability.

[Realbrisk]

[track.royalmail.com...]

[edited by: encyclo at 3:03 am (utc) on Dec. 16, 2007]

Thank for doing it I was just about to remove the session ids

[edited by: Realbrisk at 3:04 am (utc) on Dec. 16, 2007]

[piatkow]

For a small number of manual lookups that is great. If you want to do it programatically then you will need to buy the PAF.