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Country Calling Code from Guam to United States

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can find full IDD country calling code from Guam to United States for making international phone calls.

To call a phone number in United States from Guam dial the following keys:
+1 N
Where,
N is the phone number

If your phone doesn't have the + symbol, press 011 in it's place, which is the international call prefix used in Guam.

Select the countries you are calling to/ making a call from:

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