What is Guam's country code?
The country code for Guam is +1.
Country codes are assigned by the International Telecommunication Union (ITU). Single-digit codes like +1 are assigned to large countries or regions.
How do I dial Guam?
- International format (recommended)
-
+1 [local number]Example:
+1 671-300-1234 - From a mobile phone
-
Press and hold 0 or tap + to get the plus sign, then dial
+1followed by the local number. - From a landline
-
Dial your country's international access code, then
1, then the local number.Common access codes: US/Canada: 011, UK: 00, Australia: 0011
Do I need to drop the leading zero?
When calling internationally, you typically drop the national prefix (1) from local numbers.
What time zone is Guam?
Pacific/Guam
Not a good time to call
11:03 PM local time · Late night / early morning
Most people are sleeping.
Calling Guam
Direct calling to Guam isn't available yet. View available destinations.
Frequently asked questions
Is +1 a mobile or landline code?
+1 is the country code for all of Guam—both mobile and landline numbers use this code. The digits after the country code may indicate the number type, but this varies by country.
Why won't my call to Guam connect?
Common issues:
- Wrong format: Make sure you're using +1 (not 001 or 1)
- Extra digits: Remove any trunk prefix (usually 0) from the start of the local number
- Missing digits: Ensure you have the complete local number after the country code
How do I save a Guam number in my contacts?
Always save international numbers in E.164 format: +1 followed by the local number (without the leading 0 if applicable). This format works worldwide.