# Examples of vaild phone numbers it accepts 9054286644 905-428-6644 (905)-428-6644 1-(905)-428-6644 (905)4286644 905 428 6644 12 903 455 6789 # Regex expression ^d{0,3}[- ]?[ ]*[(]?d{3}[)]?[- ]?[ ]*d{3}[- ]?[ ]*d{4}$