Northern Mariana Islands area codes
One area code, 670, on Northern Mariana Islands Time.
Calling Northern Mariana Islands right now
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Northern Mariana Islands's area code: 670
670 covers Northern Mariana Islands. Its page has the local time now, every place it serves, and when you can call.
See 670's cities and calling hoursWhen can you call Northern Mariana Islands numbers?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every number to them, since you can't tell a work line from a personal cell. Each area code's page has its local time now.
What applies in Northern Mariana IslandsEvery 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
Northern Mariana Islands area code FAQ
How many area codes does Northern Mariana Islands have?
One: 670.
What time zone is the Northern Mariana Islands area code in?
Northern Mariana Islands Time (GMT+10, UTC+10, all year).
When can you call Northern Mariana Islands numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
Calling Northern Mariana Islands numbers? Reach more of them.
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