jgxenite
Supreme Member
Offline
Help us to help you - read the instructions!!
Posts: 1,454
Gender:
|
According to the 0870 Wikipedia page, "Mercury Communications Ltd (now Cable & Wireless) had a similar scheme, with its numbers beginning with 0541."
It doesn't say when the numbers were introduced, but I presume some form of NGN has been available since the start of the telephone numbering system.
|