0500 was Edinburgh, Lothian (LO) – numbers were transferred to 031[11]
0500 was later used for C&WC FreeCall. New numbers have not been allocated since 28 April 2001, although numbers active before that date are still in use.
This code remains unused, and this may simply be because previously it was 0999 and the emergency telephone is number is 999. It is likely to have been avoided so as to avoid confusion.
^ ab (0118) Numbers in Reading separately migrated to 0118 several years after PhONEday and a couple of years before the BigNumber change. Local numbers have seven digits and begin with a 3 or 9.
^ (0191) Tyneside numbers begin 2, 4, 6. Durham numbers begin 3. Sunderland numbers begin 5. Local numbers have seven digits.
^ abcdefghijklmnopqrstuvwxyzaaabacadaeafagahaiajakalamanao There are still a very few places with the standard (01xxx) area code but which have both six-digit and five-digit local numbers, or have only five-digit local numbers, as described at Telephone numbers in the United Kingdom. These codes include 01204, 01208, 01254, 01276, 01297, 01298, 01363, 01364, 01384, 01386, 01404, 01420, 01460, 01461, 01480, 01488, 01524, 01527, 01562, 01566, 01606, 01629, 01635, 01647, 01659, 01695, 01726, 01744, 01750, 01768, 01827, 01837, 01884, 01900, 01905, 01935, 01946, 01949, 01963 and 01995.
