Phone number regex extraction from formatted string

Question

Given the phone numbers are all on this format:

(999) 999-9999 Ext.9999"

I want to return everything to the second space, e.g.:

(999) 999-9999

Any ideas?

Answer 1

if your string is in s:

   string s = "(999) 999-9999 Ext.9999";
   string number = s.Split(" Ext")[0];