Country Code Guide is your one-stop shop for making international calls from anywhere in the world. Here's how to call Guam:

  1. Dial the exit code for your country. This is usually 00 or 011.
  2. Dial the country code for Guam, which is +1-671.
  3. Dial the area code for the city you're calling in Guam.
  4. Dial the local phone number.

For example, to call a mobile phone number in Guam from the United States, you would dial:

011 1 --- -------
IDD COUNTRY CODE CITY CODE PHONE NUMBER
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City
Dial Codes
Guam does not use city codes.

Calling from other countries to Guam

Are you calling someone in Guam from outside the country? Select a country from the list below to discover the international dialing code you need to dial for calling Guam.