Area code 671
Area code 671 is a Guam area code, in service since July 1, 1997.
Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
It is in the Chamorro Time zone, and NANPA lists it as not observing daylight saving time.
- State
- Guam
- In service since
- July 1, 1997
- Local dialing
- ten digits; dialing 1 plus ten digits also works
- Time zone
- Chamorro Time