A few, Microsoft mainly last I checked. Dell did for awhile but a lot of buisnesses got pissed off about that and threatnened to switch brands to something like HP, so the North American Dell moved the majority of their call centers back into places like Georgia and Texas (the majority of my support calls have gone there) Thankfully I've yet to have communications problems with them when I'm at Goodwill IT.
However, even if though some compainies have moved their support back to their respective countries they do support for, what really ticks me off is that some support group in Canada my Dad always called had their support agents in N.A. but they were Indian! :x
The only company I recently called for that prob had support in India or some other country was ABIT. One I had to use Skype out to make the call as it was long distance in which I don't have for landline.
what's 151 do? i'm assuming that's a number in the UK.