The state of Connecticut is currently using four area codes. Area code 203 originally covered all of Connecticut when it was established in 1947. Area code 959 most recently added in 2014. Today, 860 is the most populated Area code about 1.8 million of the state’s 3.6 million residents.

Connecticut Area Codes

203
475
860
959
Connecticut Area Codes

Connecticut Area Codes for the Largest Cities

  • Bristol 860
  • Bridgeport 203
  • Central Manchester 860
  • Danbury 203
  • East Haven 203
  • East Hartford 860
  • Hartford 860
  • Norwalk 203
  • Norwich 860
  • Meriden 203
  • Milford 203
  • Naugatuck 203
  • New Haven 203
  • Newington 860
  • Middletown 860
  • New London 860
  • North Haven 203
  • New Britain 860
  • Shelton 203
  • Stamford 203
  • Stratford 203
  • Trumbull 203
  • Torrington 860
  • Waterbury 203
  • Westport 203
  • West Haven 203
  • Wethersfield 860
  • West Hartford 860
203 area code Timezone: Eastern
Current time:

475 is an overlay of 203

  • Ansonia
  • Byram
  • Bethel
  • Bridgeport
  • Branford Center
  • Bethlehem Village
  • Cos Cob
  • Cannondale
  • Cheshire Village
  • Derby
  • Darien
  • Danbury
  • East Haven
  • Glenville
  • Greenwich
  • Georgetown
  • Guilford Center
  • Heritage Village
  • Meriden
  • Milford
  • Naugatuck
  • Madison Center
  • Newtown
  • Norwalk
  • New Haven
  • North Haven
  • Orange
  • Old Greenwich
  • Pemberwick
  • Riverside
  • Ridgefield
  • Shelton
  • Southport
  • Stamford
  • Stratford
  • Trumbull
  • Westport
  • Woodmont
  • Waterbury
  • West Haven
  • Wilton Center
  • Woodbury Center
  • Wallingford Center
860 area code Timezone: Eastern
Current time:

959 is an overlay of 860

  • Baltic
  • Bantam
  • Bristol
  • Brooklyn
  • Blue Hills
  • Broad Brook
  • Canaan
  • Clinton
  • Colchester
  • Crystal Lake
  • Collinsville
  • Coventry Lake
  • Canton Valley
  • Chester Center
  • Conning Towers Nautilus Park
  • Durham
  • Danielson
  • Deep River Center
  • Fenwick
  • East Hampton
  • East Brooklyn
  • East Hartford
  • Essex Village
  • Falls Village
  • Groton
  • Gales Ferry
  • Glastonbury Center
  • Groton Long Point
  • Hartford
  • Higganum
  • Hazardville
  • Jewett City
  • Kensington
  • Lakeville
  • Long Hill
  • Litchfield
  • Lake Pocotopaug
  • Moosup
  • Moodus
  • Mystic
  • Manchester
  • Middletown
  • Mashantucket
  • Mansfield Center
  • Noank
  • Norwich
  • Niantic
  • Norfolk
  • Newington
  • New London
  • New Britain
  • New Milford
  • New Preston
  • North Granby
  • Northwest Harwinton
  • New Hartford Center
  • North Grosvenor Dale
  • Oakville
  • Old Mystic
  • Oxoboxo River
  • Old Saybrook Center
  • Putnam
  • Pawcatuck
  • Portland
  • Poquonock Bridge
  • Plainfield Village
  • Quinebaug
  • Rockville
  • Sharon
  • Somers
  • Storrs
  • Stonington
  • Salmon Brook
  • South Windham
  • Saybrook Manor
  • Sherwood Manor
  • South Coventry
  • Suffield Depot
  • Simsbury Center
  • Southwood Acres
  • South Woodstock
  • Stafford Springs
  • Thomaston
  • Torrington
  • Terryville
  • Tariffville
  • Terramuggus
  • Thompsonville
  • Winsted
  • Wauregan
  • Weatogue
  • Waterford
  • Watertown
  • Willimantic
  • Wethersfield
  • West Hartford
  • West Simsbury
  • Windsor Locks
  • Westbrook Center
Colorado Area Codes
Colorado Zip Code