The area code 340 is located in charlotte amalie, us virgin islands.
Area code 340 serves the entire U.S. Virgin Islands, with a strong presence in Charlotte Amalie, the capital on St. Thomas. This Caribbean hub sits just east of Puerto Rico and anchors regional travel, trade, and tourism with its deep-water harbor and historic waterfront. As part of the North American Numbering Plan (NANP), 340 phone numbers use country code +1, just like the mainland United States. Businesses, hotels, and government offices across the islands use 340 for both landline and mobile phone numbers.
Major communities and landmarks covered by area code 340 include:
Area code 340 was established in 1997 after a split from 809, giving the territory its own dedicated code. It remains a single, territory-wide code with no overlays, covering St. Thomas, St. Croix, St. John, and nearby islets. From the U.S. and Canada, calls are dialed as 1 + 340 + seven digits; from abroad, use +1 340 + the local number. The islands observe Atlantic Standard Time (AST) year-round and do not use Daylight Saving Time, which helps with scheduling calls.
Charlotte Amalie is known for its historic Danish architecture and one of the Caribbean’s most active cruise ports, while St. John’s protected lands highlight the region’s natural beauty. Buck Island Reef National Monument near St. Croix and Virgin Islands National Park on St. John are well-known points of interest reached by 340 phone contacts for tours and services. Whether you’re reaching a hotel, marina, or local business, area code 340 connects the territory’s key communities with straightforward NANP dialing.
Statistic: About 87,000 residents live in the U.S. Virgin Islands (U.S. Census Bureau, 2020).