ZIP codes
3
Area Code 670
Explore ZIP codes in area code 670 — covering MP — 3 ZIP codes. Population, income, and housing at a glance.
Population
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States
MP
Median household income (avg.)
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Average home value
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Where is area code 670?
Area code 670 maps to 3 indexable ZIP codes on US5 across MP.
Among places with the most population in this NPA on US5 are Talafofo, MP, Sinapalo, MP, and Northern Tinian, MP. Open any ZIP below for full demographics, housing, and nearby services.
How area code 670 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 670 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 670, and overlays or split NPAs can mean multiple area codes serve the same metro.
Scams and caller ID spoofing
Seeing area code 670 on caller ID does not prove the caller is physically in MP. 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 670
| ZIP | City | County | State | Population | Income | Home value |
|---|---|---|---|---|---|---|
| 96950 | Talafofo | Saipan Municipality | MP | — | — | — |
| 96951 | Sinapalo | Rota Municipality | MP | — | — | — |
| 96952 | Northern Tinian | Tinian Municipality | MP | — | — | — |
Frequently asked questions
Where is area code 670?
Area code 670 is associated with ZIP codes in MP on US5 (3 ZIP codes). Browse the ZIP table on this page for cities and counties.
How many ZIP codes are in area code 670?
US5 currently lists 3 indexable ZIP codes for area code 670. Counts can change as geography publishes update.
What is an NXX or “number block” in area code 670?
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 670; for live number assignment details, use official NANPA / carrier resources.
Does a 670 caller ID mean the person is local?
No. Caller ID can be spoofed to show area code 670 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 670?
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 670?
Larger population clusters on US5 for 670 include Talafofo, MP, Sinapalo, MP, and Northern Tinian, MP. Open linked ZIP pages for neighborhood-level demographics.