These are word's definitions related to area-code. Click on any word to go to its word's detail page. Or, go to the definition of area-code.
0 a series of numbers used before the main phone number when you phone someone outside your own town or area
1 a set of three numbers, connected with a particular area, that come at the beginning of a telephone number
2 a series of numbers that you use before the main phone number when you phone someone outside your own city or area