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Guam Country Code: +1 671
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+1 671
Guam · ISO code GU
To call Guam from another country, dial your exit code, then 1 671, then the local number. There is no trunk prefix: dial the 10-digit number after the 1.
How to call Guam
| Calling from | Dial |
|---|---|
| USA or Canada | 1 671 + 7-digit number |
| United Kingdom, Europe and most countries | 00 1 671 + number |
| Australia | 0011 1 671 + number |
| Any mobile phone | +1 671 + number |
In international (E.164) format, which most apps and sign-up forms expect, a Guam number is written as +1 671 followed by the number with no spaces or leading 0.
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Frequently asked questions
What is the country code of Guam?
The country code of Guam is +1 671. Guam is part of the North American Numbering Plan, so it uses country code +1 with area code 671.
How do I call Guam from the USA?
From the USA dial 1 671 + 7-digit number. From a mobile phone you can type +1 671 followed by the rest of the number.
Which country uses +1 671?
+1 671 is the calling code of Guam.