Area Code 265 – St. Helena

Geographic Overview and Administrative Jurisdiction

The area code 265 is a geographic National Destination Code (NDC) assigned to the island of St. Helena, a British Overseas Territory in the South Atlantic Ocean. This code covers the entire island, including its capital Jamestown and other settlements such as Half Tree Hollow, Longwood, and Sandy Bay. St. Helena operates under the numbering plan of the United Kingdom, with the country calling code +290 designated by the ITU-T. The island's telecommunications infrastructure is modernized, with a full-fiber network and 4G mobile services, but the geographic code 265 remains the primary fixed-line prefix for residential and business subscribers.

Dialing Formats and Caller Instructions

For international callers, the correct format is +290 265 XXXX, where XXXX is the four-digit subscriber number. For example, a call to a fixed line in Jamestown would be dialed as +290 265 1234. When dialing from within St. Helena or from Ascension Island (which shares the +290 code), callers must use the full eight-digit national number: 265 XXXX. It is important to note that St. Helena does not use trunk prefixes like '0' for domestic calls; the NDC is always included. Local callers should not add any extra digits before the 265 prefix.

Geographic Coverage and Numbering Details

The 265 prefix is non-portable, meaning that numbers are tied to the physical location on St. Helena. The island's fixed-line network is operated by Sure South Atlantic, the incumbent telecom provider. Subscriber numbers under 265 are typically four digits long, resulting in a total national number length of seven digits (excluding the +290 country code). This structure aligns with the ITU-T E.164 recommendation, ensuring global interoperability. There are no overlay codes or additional geographic NDCs for St. Helena; the 265 prefix is the sole fixed-line code for the island.

Practical Usage and Considerations

Businesses and government offices on St. Helena commonly use 265 numbers for official communications. Tourists and remote workers should note that while mobile numbers on the island also use the +290 country code, they are assigned different prefixes (such as 5 or 6) and are not part of the 265 geographic range. When calling from the UK or other countries, the international prefix (00 or +) must be used, followed by 290 and the eight-digit number. For example, from the UK, a call to a St. Helena fixed line would be dialed as 00 290 265 XXXX. Understanding these dialing protocols ensures seamless connectivity with this remote territory.