Student or Learner
When asking someone to contact you, or giving someone your telephone number, should you use 'on' or 'at'.
e.g. feel free to call me on 0207..... or ... feel free to call me at 0207
What about in the UK? Do people use 'on' or 'at' over there?
I would say 'you can call me on...'
'I'll be at...'