GreenvilleSpartanburgSouth Carolina (SC)
821 shares its calling area with 864 — 10-digit dialing (area code + number) is required for every local call in this region, even calls between numbers that share the same code.
How to dial a 821 number from abroad
Calling Greenville from outside the United States? Dial the full number in international format — you don't need the US exit code, that's only for calls made from inside the US.
International format
A 821 number looks like this when dialed from anywhere in the world:
+1 821 XXX XXXX
Other area codes in South Carolina
Frequently asked questions
How do I call a Greenville number from abroad?
Dial + (or 00 from most countries), then 1 for the US, then 821, then the 7-digit local number. So a Greenville number reads as +1 821 XXXXXXX.
What other area codes serve Greenville?
Greenville is also served by 864 — these overlay 821 in the exact same area, so 10-digit dialing is standard there.
How much does Hyallo charge to call area code 821?
Calls to Greenville landlines start at $0.02/min with Hyallo, and your first call is free. Mobile numbers in the same area code can cost more, since they're billed at the real carrier rate.