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Area Code 671 Location & Details

State / Region: Guam • Country: Guam

Major Cities Covered: Guam And Surrounding Communities

Standard Dial Format
+1 (671) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 671?
GuamState Hub →
Country Territory
Guam
671 Area Code Time Zone
Chamorro (ChST)
671 Overlay Codes
No Overlays

Area Code 671 Geographic Map

Interactive location bounds and coverage area for Guam (Chamorro (ChST) Timezone)

Lat: 39.83° • Lng: -98.58°
📍 Geographic Center: GuamMap data © OpenStreetMap contributors

Where is Area Code 671 Located?

Telephone area code 671 is assigned to Guam in Guam. It serves cities and metropolitan communities including Guam And Surrounding Communities.

Historical Context & Area Code Overlay Information:671 serves Guam (Guam).

For local and long-distance calls within area code 671, standard 10-digit dialing (671) XXX-XXXX applies.

Who Called Me from Area Code 671?

Received an unknown call, missed call, or text scam from area code 671? Here is how to trace who is calling from 671 area code and verify unknown numbers safely:

1.
Identify Missed Calls & Voicemails:

Legitimate contacts usually leave a detailed voicemail or caller ID record.

2.
Watch Out for Neighbor Spoofing:

Robocallers often fake incoming caller ID numbers using your local 671 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 671:

Search public white-pages or use caller intelligence guides before returning unfamiliar calls.

Learn How Reverse Phone Lookups Work→

How to Call Area Code 671 & Dialing Format

When placing a phone call to a number in area code 671, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (671) + 7-digit number.
  • Calling from an international location outside +1: Dial your country's international exit code (e.g. 011 in US or + on mobile) + 1 + 671 + 7-digit number.
  • Do I need to dial area code 671 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.

Top Cities & Municipalities Served in Area Code 671

Urban centers, census places, and communities within the +1-671 calling area

1 Major Cities Listed
City NameCountyPopulation% of 671 Pop
Guam And Surrounding CommunitiesGuam County250,000100.0%

Counties Covered by Area Code 671

Geographic county distribution and population coverage across Guam

County NameTotal Population% of 671 Area% of County
Guam County337,500100.0%74%

☎️Area Code 671 Exchange Prefixes & Carriers

Showing 50 of 128 central office 3-digit prefixes and assigned telecom carriers

89% Landline11% Wireless0% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(671) 200-📞LandlineGULocal Exchange CarrierN/A
(671) 201-📞LandlineAGANATELEGUAM HOLDINGS, LLC06/02/2023
(671) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(671) 260-📞LandlineGULocal Exchange CarrierN/A
(671) 271-📞LandlineGULocal Exchange CarrierN/A
(671) 272-📞LandlineGULocal Exchange CarrierN/A
(671) 273-📞LandlineGULocal Exchange CarrierN/A
(671) 274-📞LandlineGULocal Exchange CarrierN/A
(671) 275-📞LandlineGULocal Exchange CarrierN/A
(671) 276-📞LandlineGULocal Exchange CarrierN/A
(671) 281-📞LandlineGULocal Exchange CarrierN/A
(671) 282-📞LandlineGULocal Exchange CarrierN/A
(671) 283-📞LandlineGULocal Exchange CarrierN/A
(671) 284-📞LandlineGULocal Exchange CarrierN/A
(671) 285-📞LandlineGULocal Exchange CarrierN/A
(671) 286-📞LandlineGULocal Exchange CarrierN/A
(671) 287-📞LandlineGULocal Exchange CarrierN/A
(671) 288-📞LandlineGULocal Exchange CarrierN/A
(671) 289-📞LandlineGULocal Exchange CarrierN/A
(671) 290-📞LandlineGULocal Exchange CarrierN/A
(671) 300-📞LandlineAGANAPACIFIC DATA SYSTEMS - GU03/23/2007
(671) 311-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(671) 333-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 339-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 343-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 344-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 349-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 355-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 362-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 366-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 400-📞LandlineAGANAPACIFIC DATA SYSTEMS - GU11/04/2010
(671) 411-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(671) 456-📞LandlineAGANAPTI PACIFICA INC.N/A
(671) 471-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 472-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 473-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 474-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 475-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 477-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 478-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 479-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 480-📞LandlineAGANATELEGUAM HOLDINGS, LLC03/13/2015
(671) 482-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 483-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 484-📞LandlineAGANATELEGUAM HOLDINGS, LLC02/18/2022
(671) 485-📞LandlineAGANATELEGUAM HOLDINGS, LLC07/18/2023
(671) 486-📞LandlineAGANATELEGUAM HOLDINGS, LLCN/A
(671) 487-📞LandlineAGANATELEGUAM HOLDINGS, LLC05/07/2009
(671) 488-📞LandlineAGANATELEGUAM HOLDINGS, LLC03/28/2002
(671) 489-📞LandlineAGANATELEGUAM HOLDINGS, LLC09/07/2011

Frequently Asked Questions about Area Code 671

Where is area code 671 located?

Area code 671 is located in Guam (Guam), serving cities like Guam And Surrounding Communities.

What timezone is area code 671?

Area code 671 operates in the Chamorro (ChST) timezone.

What state is area code 671?

Area code 671 is assigned to the state / telecom territory of Guam.

Is area code 671 a scam or dangerous?

Area code 671 is an official geographic area code for Guam. However, beware of robocaller spoofing.

Guam State Area Codes

View complete directory of telephone area codes assigned to Guam.

Explore Guam Directory

Get a 671 Business Phone Number

How to acquire a virtual phone number or business line with area code 671 for local customer trust in Guam.

Get 671 Business Number
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