Guam Phone Number Lookup

Verify Guam Phone Numbers - Country Code +1-671

Our phone number lookup tool above instantly verifies whether a phone number belongs to Guam by analyzing its country code and number format. Guam phone numbers use the country code +1-671 and follow an (671)+7 digits national format.

Country:	Guam (GU, GUM)
Country Calling Code:	+1-671
National Number Format:	(671)+7 digits
Example Number:	+1 671 688 1234
International Dialing Prefix:	011
National Trunk Prefix:	1
Time Zone (UTC/DST):	+10
Regulator:	-

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Main Area Codes in Guam

Phone numbers in Guam use the country code +1, followed by an area code such as 671 (Tamuning). Match the area code below to identify the city or region a number from Guam is calling from.