About Area Code 959
- Region Code
- 959
- City
- Hartford
- State
- Connecticut
- Population
- 1,767,396
- Largest City
- Hartford
- Neighboring Codes
- Time Zone
- Eastern Time
Connecticut
(959) Area Code 959 — Hartford, Connecticut
959 Area Code – Hartford, Connecticut: Location, Time Zone & History
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Map of Area Code 959
Available Phone Numbers
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History & Cultural Notes
Rather than splitting Hartford's territory further, regulators layered a new code on top of it: 959 went into service on August 30, 2014, as an all-services overlay of area code 860, itself a 1995 split from 203. It was Connecticut's second overlay after 475/203, and the state paved the way by making ten-digit local dialing mandatory statewide back in November 2009. NANPA formalized the plan in Planning Letter 456 in August 2013 before the overlay activated the following year.
Because it's an overlay rather than a split, longtime Hartford-area residents and businesses largely kept their original 860 numbers, with 959 reserved mainly for newer lines. The combined 860/959 territory covers Hartford plus most of Litchfield, Middlesex, New London, Tolland, and Windham counties, stretching to New Britain, Bristol, Middletown, New London, Norwich, Willimantic, and Torrington.
Hartford has long been known as the "Insurance Capital of the World," headquarters to The Hartford, Travelers, and Aetna. The territory's identity runs deeper still:
- General Dynamics Electric Boat builds submarines in Groton
- Foxwoods Resort Casino and Mohegan Sun anchor tribal gaming in New London County
- The University of Connecticut's main campus sits in Storrs
- Mark Twain wrote many of his best-known works at his Hartford home between 1874 and 1891