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Area Code 203

Area code 203 is associated with Connecticut. It connects to 166 ZIP codes across 65 cities, with an estimated combined population of 1,798,736.

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Area details

Area code
203
States covered
Connecticut
States count
1
ZIP codes
166
Cities
65
Population
~1,798,736

Related ZIP codes

Open ZIP state page
06902
Stamford, CT
06516
West Haven, CT
06511
New Haven, CT
06810
Danbury, CT
06606
Bridgeport, CT
06492
Wallingford, CT
06513
New Haven, CT
06484
Shelton, CT
06460
Milford, CT
06450
Meriden, CT
06611
Trumbull, CT
06824
Fairfield, CT

About area code 203

Area code 203 is a useful lookup entry for Connecticut. It helps connect phone-number geography with ZIP code coverage, city clusters, and state-level browsing. Use the related ZIP cards above to move deeper into the postal data for this region.

If you are browsing by state, you can continue with Connecticut lookup pages for ZIP codes and area codes.

More ZIP codes in the same state

06010
Bristol, Connecticut
Area 959
06457
Middletown, Connecticut
Area 959
06082
Enfield, Connecticut
Area 959
06106
Hartford, Connecticut
Area 959
06360
Norwich, Connecticut
Area 959
06790
Torrington, Connecticut
Area 959
06040
Manchester, Connecticut
Area 959
06053
New Britain, Connecticut
Area 959