Area Code Box

Area code 671

Where is area code 671?

Agana, Guam

Local time: … (Chamorro Standard Time)

TerritoryGuam
CountryUnited States
Main citiesAgana
Time zoneChamorro Standard Time
Overlay area codesNone
In service since1997
Assigned prefixes95
Dialing format(671) XXX-XXXX · +1 671 XXX XXXX from abroad

Look up a 671 number

Enter a 3-digit area code or a full 10-digit number.

Cities and towns in area code 671

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 671.

Phone companies in area code 671

The carriers that hold the most 671 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

PrefixesCarrier
53Teleguam Holdings
19Pti Pacifica
14Guam Wireless Telephone
3It&e
2Pacific Data Systems
2Iconn
2Docomo Pacific

All 95 prefixes in area code 671

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Questions

Where is area code 671?
Area code 671 is in Guam. It serves Agana.
What time zone is area code 671 in?
Area code 671 uses Chamorro Standard Time.
Is a call from area code 671 a scam?
The area code alone doesn’t tell you. Most calls from 671 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 671 number, let it go to voicemail.
When did area code 671 start?
671 went into service in 1997.
Can a 671 number be outside Guam?
Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 671 caller can be anywhere.