Guam Area Codes

Number structure

GuamCode of RegionNumber

List of area codes

RegionArea Code

Map of Guam

Other area codes in Oceania

Area Codes Search Notes

Fixed phone numbers in Guam are comprised of a single country code (+1), a 6 digit area code, and a 100 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by region and city to ensure you have the correct information for your calls. Each region page contains a list of the cities within that state and the numbers of that area. Also available are local times. So you don’t have to worry about calling too late or early again.

Getting calls from someone and want to know what state they are in? Try our reverse phone number lookup to find their location, it even works with mobile, toll free and other numbers. Just enter the number into the search field for instant results.