340 Area Code

Where is the 340 area code?

340 is a U.S. Virgin Islands area code covering the entire U.S. Virgin Islands: St. Thomas, St. Croix and St. John. In the wider directory it sits in the U.S. Territories region.

Cities in the 340 area code

• Charlotte Amalie
• Christiansted
• Frederiksted
• Cruz Bay
• Coral Bay

See 340 on the area code map →

Dialing 340

Charlotte Amalie, VI is currently served by the single area code 340, with no overlay. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.

From outside the US, dial +1 340 followed by the seven-digit number.

History of the 340 area code

340 went into service on June 1, 1997. It serves Charlotte Amalie and the surrounding part of U.S. Virgin Islands. For how codes are created, split, and overlaid, see how area codes work.

Is 340 a scam or spam risk?

340 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 340 number on your screen is no guarantee the caller is in Charlotte Amalie, VI or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.

Explore more

See every code in U.S. Virgin Islands, compare codes across the U.S. Territories region, or view all Atlantic Time codes. You can also browse the 3XX block or the complete numeric list of US area codes.

New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.