Telephone country code +1 is North America (USA, Canada, etc.). You need the area code (the following three digits) to be more specific. .
+1 330 = Akron, Canton and Youngs…town, Ohio, USA .
+1 331 = Hinsdale, Illinois, USA (some suburbs of Chicago) .
+1 334 = Montgomery, Alabama, USA .
+1 336 = Greensboro, High Point and Winston-Salem, NC, USA .
+1 337 = Lafayette and Lake Charles, Louisiana, USA .
+1 339 = Lexington, Mass., USA (suburbs of Boston) (The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00 , but Japan uses 010 , Australia uses 0011 , and many other countries use different prefixes.) ( Full Answer )