Guam Calling Codes

Country Code +1

(North American Numbering Plan )
Area Code 671
Dial +1 + 671 + Local Number
City Codes not required. All points 7 digits
Guam Calling Codes, International Calling Codes, Phone Calls, Dialing, Area Code, Phone Dialing, International Dialing Codes, Calling Country Codes, Country Code, City Codes