670 Area Code
Covers Saipan and nearby communities in Northern Mariana Islands.
(670) 555-0142Area code 670 map
Interactive coverage map for area code 670, centered on Saipan, Northern Mariana Islands
15.1778, 145.7503
Open in OpenStreetMapArea code 670 coverage map — centered on Saipan. Shaded area shows the approximate reach around the primary city.
670 is the area code for Saipan and the surrounding part of Northern Mariana Islands. It covers communities such as Saipan and more across Northern Mariana Islands. The region observes local time, so a number like (670) 555-0142 is on that clock right now. Neighboring area codes include 671. It is not currently paired with an overlay code. Local calls inside the 670 area can generally be placed with ten digits, and you do not need a leading 1 for domestic calls. Keep reading for the current local time in Saipan, a map of the 670 coverage area, the places it reaches, nearby and overlay codes, and how to tell a real 670 call from a scam.
Cities covered by 670
Cities & neighborhoods
- Saipan
Looking for the broader picture? See all Northern Mariana Islands area codes.
Nearby & overlay area codes
Overlay codes (same area)
These share 670’s geography — a number in either code can be on the same street.
670 has no overlay code right now.
Is a call from 670 a scam?
Area code 670 serves Saipan and the surrounding area, so most calls are ordinary local and business traffic. As everywhere, spam and robocalls do use 670 numbers, frequently by spoofing a local-looking caller ID to boost pickup rates. The area code itself tells you nothing about who is really calling, so judge the call by what's said, not the number.
Red flags to watch for
- Pressure to act right now, or threats of arrest, fines, or service being cut off.
- Requests to pay with gift cards, wire transfer, crypto, or a payment app.
- Asking for passwords, one-time codes, your SSN, or full card/bank numbers.
- A robocall or recording, or a number that won’t let you call back.
When unsure, hang up and call the organization back on a number you look up yourself.
Calling a 670 number from abroad
Every 670 number is a US/Canada +1 number. From a mobile anywhere, the simplest approach is to dial it in international format:
+1 670 555-0142If your phone can’t dial the +, replace it with your country’s exit code, then 1, then the number:
- UK, Germany, France & most of Europe
00 1 670 555-0142 - Australia
0011 1 670 555-0142 - Japan
010 1 670 555-0142 - Mexico
00 1 670 555-0142
Within the US and Canada you don’t need any of this — just dial the ten digits 670 555-0142.
Reverse phone lookup
Check any US or Canada number to see whether it's a working line, which carrier it sits on, whether it's mobile, landline or VoIP, and roughly where it's registered.
Shows carrier, line type and location. Owner name isn't available here.
Results are for personal, informational use only and may not be used for employment, credit, housing or tenant-screening decisions.
Area code 670: frequently asked questions
Where is the 670 area code located?
The 670 area code is located in Northern Mariana Islands, centered on Saipan. Communities in the 670 area include Saipan.
What time zone is 670 in?
Area code 670 is in the local time zone (UTC+10 (ChST)). You can see the exact current local time for Saipan on the live clock above.
What cities use area code 670?
Cities and areas that use 670 include Saipan. Its primary city is Saipan, MP.
Do I need to dial 1 before 670?
You generally do not need to dial a leading 1 for domestic calls to 670. Ten-digit dialing (the 670 code plus the seven-digit number) is the safest habit.
Is 670 a toll-free or scam number?
No — 670 is a normal geographic area code for Saipan, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877 and 888). A 670 number is not inherently a scam, but the code can be spoofed. See the spam-call section above for how to tell.
What are the overlay area codes for 670?
Area code 670 does not currently have an overlay code; it is not layered on top of another code in the same area.