[3GScottishUser]

The link below allows you to type in any valid UK phone number and it will return a result from a database including the issuing network and call costs from BT landlines.

http://www.ukphoneinfo.com/section/home/introduction.shtml

[fozzie]

Dont use the mapping feature though as it isnt very accurate.

I checked my mothers number in England & my number in Scotland - WAY WAY OFF on both counts