top of page


area code

Biggest city:





Eastern (GMT -5)

Nearby area codes: 

Zip codes



Major Cities:

Hartford, New Haven, Bridgeport, Stamford, Waterbury (overlay of 860 area).


Average Income:





Unemployment Rate:

Area code 959 is a part of the telephone numbering plan in the United States, specifically in the state of Connecticut. Geographical Coverage: Area code 959 serves the state of Connecticut as an overlay for the existing area code 860. This means it covers the same geographic area as 860, which includes cities like Hartford, New London, Norwich, and Torrington. Introduction as an Overlay Code: The 959 area code was introduced in 2014 to provide additional numbering resources for the region. As the demand for phone numbers increased, particularly due to the proliferation of cell phones and other communication devices, overlaying 959 with the existing 860 area code allowed for more phone numbers without changing the existing numbers. Impact on Dialing Patterns: With the introduction of the 959 overlay, 10-digit dialing (area code + phone number) became mandatory for all calls within this region. This means that even for local calls within the same area code, the full 10-digit number must be dialed. In conclusion, area code 959 plays a vital role in Connecticut's telecommunication infrastructure, particularly as an overlay to the existing 860 area. Its implementation reflects the growing telecommunications needs and technological advancements in the state, ensuring a continuous supply of new phone numbers in a densely populated region.
bottom of page