In message , at 15:38:00 on
Mon, 20 Jul 2009, Recliner remarked:
It would be instructive to know what proportion of within-London
calls are dialled from London landlines as 11 digits. Rather a lot, I
fear.

Probably so -- is there any (price) penalty for so doing?

Not on the calls. But if we'd been brave enough to make everyone dial
11-digit numbers then the various "PhoneDay" code changes would have
been much simpler, and saved money that way.
--
Roland Perry