Area code 671 — who called you?
Numbers starting with 671 are assigned to Guam (includes Andersen Air Force Base). Paste the full number below to see the caller's name, carrier and community spam reports — free and anonymous.
Area code 671 at a glance
- Area code
- 671
- Region
- Guam
- Country
- United States
- Dial format
- +1 671 XXX XXXX
Assignment data from the North American Numbering Plan Administration (NANPA).
Got a call from 671? Here's what it means.
The three digits after the +1 country code identify the numbering plan area a number was issued in. For 671, that area is Guam (includes Andersen Air Force Base). If you don't know anyone there, the call is more likely to be a business, a call centre or an automated dialer than a personal contact.
An area code alone can't tell you who is calling. Numbers are portable, and VoIP providers can issue a 671 number to a caller located anywhere in the world — a technique known as neighbour spoofing, where a familiar area code is used to make a call look local.
To identify the caller, run the full 10-digit number through a lookup. WhoCallsMe checks the number against carrier records, business directories and community spam reports, and shows the line type, carrier and reported risk.