"Colin Rosenstiel" wrote in message
...

In general O2 and Vodafone are in both 077 and 078 and T-Mobile and Orange
are 079 though.

That was the original allocation (who was 076 allocated to?) but the ability
to retain numbers when transferring between providers has now rendered the
system obsolete. Actually it's a real problem for me - my contract allows me
free calls to other Vodafone users overnight and all day at weekends (plus
all landlines) but I'm unable to take advantage of calling friends on
mobiles because I'm no longer sure which of them are on Vodafone. Originally
one was able to tell simply from the number. I'm too mean to risk calling
another provider!