Guam Country Code
International dialing code: +1-671
Country Information
| Country: | Guam |
| Country Code: | +1-671 |
| ISO Code: | GU |
| Time Zone(s): | UTC+10 |
How to Call Guam
From Outside Guam:
International Access Code + 1-671 + Phone Number
Example:
+1671 XXX XXX XXXX
Note: The international access code varies by country. Common codes include 011 (US/Canada), 00 (most of Europe), or + (mobile phones).