ZIP codes
7
Area Code 671
Explore ZIP codes in area code 671 — covering GU — 7 ZIP codes. Population, income, and housing at a glance.
Population
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States
GU
Median household income (avg.)
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Average home value
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Where is area code 671?
Area code 671 maps to 7 indexable ZIP codes on US5 across GU.
Among places with the most population in this NPA on US5 are Pagat, GU, Ordot, GU, Merizo, GU, Malojloj, GU, and Apra Harbor, GU. Open any ZIP below for full demographics, housing, and nearby services.
How area code 671 numbering works
In the North American Numbering Plan, the first three digits of a 10-digit phone number are the Numbering Plan Area (NPA), commonly called the area code. Digits 4–6 are the central office code (NXX / “exchange”), and the last four digits identify the individual line.
US5’s 671 page groups ZIP codes that are associated with this NPA in published geography data. That is a place-based view — it is not a live directory of every phone number assigned to 671, and overlays or split NPAs can mean multiple area codes serve the same metro.
Scams and caller ID spoofing
Seeing area code 671 on caller ID does not prove the caller is physically in GU. Spoofing tools can display almost any NPA, including local-looking numbers used in IRS, bank, warranty, and “grandparent” scams.
If you receive an unexpected call about taxes, arrests, or locked accounts: hang up, do not share codes or remote-access software, and contact the organization using a number from its official website or your statement — not a number the caller provides. US5 publishes geography for research; it does not verify live callers.
ZIP codes in area code 671
Frequently asked questions
Where is area code 671?
Area code 671 is associated with ZIP codes in GU on US5 (7 ZIP codes). Browse the ZIP table on this page for cities and counties.
How many ZIP codes are in area code 671?
US5 currently lists 7 indexable ZIP codes for area code 671. Counts can change as geography publishes update.
What is an NXX or “number block” in area code 671?
After the area code, the next three digits (NXX) identify a central office / exchange “block” of up to 10,000 numbers. US5 focuses on ZIP geography for 671; for live number assignment details, use official NANPA / carrier resources.
Does a 671 caller ID mean the person is local?
No. Caller ID can be spoofed to show area code 671 even when the caller is elsewhere. Treat unexpected calls about money, arrests, or account lockouts as suspicious and verify through official channels.
How can I avoid phone scams that use area code 671?
Do not trust caller ID alone. Never send gift cards, wire money, or install remote-access apps because a caller claims to be from the IRS, a bank, or tech support. Hang up and call back using a published number from a statement or official website.
What cities use area code 671?
Larger population clusters on US5 for 671 include Pagat, GU, Ordot, GU, Merizo, GU, Malojloj, GU, and Apra Harbor, GU. Open linked ZIP pages for neighborhood-level demographics.