Caribbean area code
Area code 721
Area code 721 belongs to Sint Maarten, part of the North American Numbering Plan, so its numbers look like US numbers, but they are international.
Don't call back unless you know them. 721 numbers are in Sint Maarten. They dial like a US number, but calls to them are international and can cost several dollars a minute. Missed one-ring calls from 721 are a classic scam. How the one-ring scam works.
WhereSint Maarten
Time zoneAtlantic
Exchanges0
Flagged numbers0
Most reported 721 numbers
No 721 numbers reported yet. Report one.
Area code 721 questions
Where is area code 721?
Area code 721 belongs to Sint Maarten, part of the North American Numbering Plan, so its numbers look like US numbers, but they are international.
What time zone is area code 721?
Area code 721 is in the Atlantic time zone.
Is a call from area code 721 a scam?
Not always, but if you don't know anyone in Sint Maarten, be careful. Calling a 721 number back is billed as an international call, which is what the one-ring scam relies on.