call us on/at

Status
Not open for further replies.

yslamac

Member
Joined
Jan 24, 2014
Member Type
Student or Learner
Native Language
Chinese
Home Country
Hong Kong
Current Location
Hong Kong
I would like to know whichever preposition is correct in the following expression.

You may call us on/at (phone no.).

Thanks!:-D
 
Status
Not open for further replies.
Back
Top