Where to get MAC to migrate from Pipex/TT

I've decided to migrate to probably Zen Fibre - I suppose the first step is to request a MAC code.
I'm Pipex (now TalkTalk) and my account will be moved to TT on Nov 7th.
I think it could be best to request the MAC code before that date, but am unsure of the number to call to do that.
Does anyone have a UK number to request the MAC please?

Edited by deleted (Thu 03-Nov-11 19:13:06)

Pipex Business users who have not already transferred to TalkTalk Business, call our sales support team on:

0800 954 0702
(Mon - Fri, 8am - 6pm)
Sales: 0800 954 0702
Customer Care: 0800 110 5172

A redirect on www.pipex.net gives those.

Thank you Andrew.

I was going to try that number, but as I'm with Homecall, did a bit more searching. There is a number on the Pipex site, but last time I used that I was through to the call centre in India.
However, I tried Google and found maccode.org.uk. They give a different number: 0871 222 6366. I did wonder if such numbers were out of date seeing there's a switch over to TalkTalk happening, but I tried it and it's a UK number. I asked for my MAC code and a pleasant gentleman took the details and put in the request.
Hopefully, it'll arrive soon