Area Code 671 at a Glance
| Area code | 671 |
| Region | Guam |
| Country | Guam |
| Primary timezone | Pacific/Guam |
| Dialing format | +1 (671) NXX-XXXX |
Cities and Places Using Area Code 671
Based on prefix-level carrier data, area code 671 covers places including:
- Tamuning
Frequently Asked Questions
Where is area code 671?
Area code 671 serves Guam, Guam.
Who is calling me from area code 671?
A call from area code 671 most likely originates from Guam, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 671 number?
Within North America: dial 1-671 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 671 and the number.