Guam Dialing Code — +1 671

The international dialing code for Guam is +1 671. To call Guam from the United States or Canada, dial 011 + 1 671 + area code + local number. From Europe, dial 00 + 1 671 + area code + local number. On mobile phones worldwide, use +1 671 followed by the area code and local number.

How to Call Guam

From USA/Canada: 011 + 1 671 + local number. From UK/Europe: 00 + 1 671 + local number. From mobile phones: +1 671 + local number.

Guam City Area Codes

• Hagåtña — +1 671
• Dededo — +1 671
• Yigo — +1 671
• Tamuning — +1 671
• Mangilao — +1 671
• Barrigada — +1 671
• Chalan Pago — +1 671
• Sinajana — +1 671

About Guam International Dialing

Country calling codes are standardized by the International Telecommunication Union (ITU). The Guam country code +1 671 is used to route international telephone calls to Guam from any country in the world.