Zip Area Code

East Haddam, Connecticut

East Haddam, Connecticut, in Middlesex County, has ZIP code 06423 and area code 860, with 959 as an overlay.

ZIP code
06423
Area codes
860, 959
Time zone
Eastern Time
Coordinates
41.4696, -72.4059

ZIP codes in East Haddam

ZIP codePost officeCountyArea codes
06423East HaddamMiddlesex County860, 959

Area codes for East Haddam

  • Area code 860

    In service since August 28, 1995. Shares its area with 959. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 959

    In service since August 30, 2014. Shares its area with 860. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

East Haddam is in the Eastern Time zone.

Towns near East Haddam