Area coe 860 is a telephone area code that covers the eastern and northwestern parts of Connecticut. The area code stretches along the Massachusetts and Rhode Island borders as well as the northern portion of the New York border. The boundary with Area code 203 runs along towns such as New Milford, Watertown, and Southington. The area code was created in 1995 to replace 203 when that area code was cut back to roughly Fairfield and New Haven counties.