The best place - because it's official and free - is the Royal Mail site: www.royalmail.co.uk The homepage will lead you through to the following page, via the business services option: www.royalmail.co.uk/paf Regards Phil Self [email protected] In response to: Subject: Northern Ireland Postal Codes Does anyone know where I might be able to find a list of the postal codes for Northern Ireland on the internet? Thanks! Pat