Guam area code
Guam uses area code 671.
| Area code | Main cities | Time zone |
|---|---|---|
| 671 | Agana | Chamorro Standard Time |
Look up a Guam number
Questions
- How many area codes does Guam have?
- One: 671.
- What time zone is Guam in?
- Guam area codes use Chamorro Standard Time.