670 area code
Northern Mariana Islands, Northern Mariana Islands Time.Area code 670 is Northern Mariana Islands, on Northern Mariana Islands Time.
Right now in Northern Mariana Islands
Northern Mariana Islands Time (GMT+10, UTC+10, all year)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Calling a lot of them? RegieGO dials up to five lines at once. See the dialer
When can you call a 670 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 670 number to them, since you can't tell a work line from a personal cell.
What applies to 670Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
The 670 area code
Northern Mariana Islands is one calling area, with no rate centers to tell apart. 670 went into service on July 1, 1997. Local calls can still be dialed with 7 digits.
- 1997670 starts
Source: NANPA area code database
Calling a list of 670 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
670 area code FAQ
What area code is 670?
670 is a Northern Mariana Islands area code.
What time zone is the 670 area code in?
Northern Mariana Islands Time (GMT+10, UTC+10, all year).
What are the calling hours for 670 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 670 area code start?
On July 1, 1997.
Calling 670 numbers? Reach more of them.
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