664 area code
Area code 664 is in Montserrat. It's on Atlantic Time (no daylight saving).
Atlantic Time (no daylight saving)
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Business hours are taken as 9 AM to 5 PM on weekdays. US telemarketing rules only allow sales calls between 8 AM and 9 PM local time.
Watch out: Montserrat is part of the North American numbering plan, so its numbers look like US numbers, but calls to it are international and can be expensive. The Federal Trade Commission has warned about “one-ring” scam calls from Caribbean area codes like 664. If you don't know the caller, don't call back.
More: look up another area code · time zone converter · US time zones map
Questions people ask
Where is area code 664?
Area code 664 is in Montserrat.
What time zone is area code 664?
664 is on Atlantic Time (no daylight saving) (UTC−4).
What time is it in area code 664 right now?
The live clock at the top of this page shows the current local time in area code 664.
Is area code 664 international?
Yes. Montserrat is outside the United States and Canada, so calls to it are usually charged as international calls even though you dial 1 + the area code.