Zip Area Code

Cornish Flat, New Hampshire

Cornish Flat, New Hampshire, in Sullivan County, has ZIP code 03746 and area code 603.

ZIP code
03746
Area code
603
Time zone
Eastern Time
Coordinates
43.4973, -72.2795

ZIP codes in Cornish Flat

ZIP codePost officeCountyArea codes
03746*Cornish FlatSullivan County603

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area code for Cornish Flat

  • Area code 603

    In service since 1947. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Time zone

Cornish Flat is in the Eastern Time zone.

Towns near Cornish Flat