G wrote:
On Fri, 16 Nov 2007 05:21:06 +0000, James Farrar
wrote:

One of the mobile companies -- Vodafone, I think -- that displays
the area the mobile is in on some handsets' screens displays 0207
/ 0208, too.

I put that down to the silly numbering conventions:

Large cities (e.g. Birmingham) = 4 digits (0121)
Provincial towns = 5 digits (e.g. 01772)
'02' numbers (e.g. London, NI, Cardiff) = 3 digits
Mobiles = 5 digits

Yes, most people seem to group the first five digits of a mobile number
(07xxx) together, but I'm not aware of any written convention that says
you should. Personally I quote mine as 0787 xxx xxxx because it easier
to remember that way.
--
Richard J.
(to e-mail me, swap uk and yon in address)