Local business phone numbers in Connecticut

73 Connecticut cities and towns with their area codes and NANPA-assigned exchanges.

Connecticut at a glance

Connecticut has 4 geographic area codes in service (203, 475, 860, and 959), 2,020 assigned central office codes across 90 rate centers, and 45 carriers holding codes, according to NANPA. Each city page lists its area codes, prefixes and carriers.

Cities and towns

Local-number pages for Connecticut
Place	County	Population (2024)	Area codes	Exchanges
Bridgeport	Greater Bridgeport Planning Region	151,599	203, 475	119
Stamford	Western Connecticut Planning Region	139,134	203, 475	124
New Haven	South Central Connecticut Planning Region	137,562	203, 475	188
Hartford	Capitol Planning Region	122,129	860, 959	297
Waterbury	Naugatuck Valley Planning Region	115,908	203, 475	70
Norwalk	Western Connecticut Planning Region	93,661	203, 475	82
Danbury	Western Connecticut Planning Region	88,692	203, 475	72
New Britain	Capitol Planning Region	75,871	860, 959	34
Fairfield	Greater Bridgeport Planning Region	65,300	203, 475	21
Greenwich	Western Connecticut Planning Region	64,594	203, 475	35
Bristol	Naugatuck Valley Planning Region	62,195	860, 959	19
Meriden	South Central Connecticut Planning Region	60,849	203, 475	31
Manchester	Capitol Planning Region	59,948	860, 959	21
Milford	South Central Connecticut Planning Region	53,396	203, 475	20
Middletown	Lower Connecticut River Valley Planning Region	48,616	860, 959	31
Wallingford	South Central Connecticut Planning Region	44,389	203, 475	20
Southington	Capitol Planning Region	44,197	860, 959	23
Enfield	Capitol Planning Region	41,140	860, 959	20
Norwich	Southeastern Connecticut Planning Region	39,993	860, 959	41
Trumbull	Greater Bridgeport Planning Region	38,073	203, 475	20
Torrington	Northwest Hills Planning Region	35,673	860, 959	21
Glastonbury	Capitol Planning Region	35,553	860, 959	21
Naugatuck	Naugatuck Valley Planning Region	32,116	203, 475	11
Cheshire	Naugatuck Valley Planning Region	30,610	203, 475	15
Windsor	Capitol Planning Region	29,658	860	20
New Milford	Western Connecticut Planning Region	28,745	860	12
Branford	South Central Connecticut Planning Region	28,448	203, 475	15
Farmington	Capitol Planning Region	28,189	860, 959	23
New London	Southeastern Connecticut Planning Region	28,081	860, 959	47
Newtown	Western Connecticut Planning Region	28,029	203, 475	11
Westport	Western Connecticut Planning Region	27,996	203, 475	20
Simsbury	Capitol Planning Region	25,353	860	16
Ridgefield	Western Connecticut Planning Region	25,300	203, 475	8
Darien	Western Connecticut Planning Region	22,528	203, 475	20
Watertown	Naugatuck Valley Planning Region	22,497	860, 959	9
Guilford	South Central Connecticut Planning Region	22,264	203, 475	11
New Canaan	Western Connecticut Planning Region	21,160	203, 475	13
Wilton	Western Connecticut Planning Region	19,255	203, 475	11
Plainville	Capitol Planning Region	17,757	860, 959	9
Madison	South Central Connecticut Planning Region	17,688	203, 475	8
Seymour	Naugatuck Valley Planning Region	17,139	203, 475	9
Wolcott	Naugatuck Valley Planning Region	16,511	203, 475	7
Colchester	Southeastern Connecticut Planning Region	15,752	860, 959	5
Ledyard	Southeastern Connecticut Planning Region	15,575	860, 959	5
Plainfield	Northeastern Connecticut Planning Region	15,315	860, 959	7
Clinton	Lower Connecticut River Valley Planning Region	13,467	860, 959	7
East Hampton	Lower Connecticut River Valley Planning Region	13,109	860, 959	7
Windsor Locks	Capitol Planning Region	12,643	860	15
Coventry	Capitol Planning Region	12,445	860, 959	5
Old Saybrook	Lower Connecticut River Valley Planning Region	10,689	860, 959	17
Canton	Capitol Planning Region	10,273	860, 959	6
Woodbury	Naugatuck Valley Planning Region	9,960	203, 475	12
Putnam	Northeastern Connecticut Planning Region	9,407	860, 959	12
Redding	Western Connecticut Planning Region	8,830	203, 475	6
Haddam	Lower Connecticut River Valley Planning Region	8,806	860, 959	4
Litchfield	Northwest Hills Planning Region	8,333	860, 959	5
Thomaston	Naugatuck Valley Planning Region	7,566	860, 959	5
Lebanon	Southeastern Connecticut Planning Region	7,141	860, 959	4
Essex	Lower Connecticut River Valley Planning Region	6,847	860, 959	6
Killingworth	Lower Connecticut River Valley Planning Region	6,284	860, 959	4
Harwinton	Northwest Hills Planning Region	5,688	860, 959	10
Columbia	Capitol Planning Region	5,359	860, 959	5
Canterbury	Northeastern Connecticut Planning Region	5,222	860, 959	4
Deep River	Lower Connecticut River Valley Planning Region	4,483	860, 959	12
Danielson	Northeastern Connecticut Planning Region	4,264	860, 959	7
Washington	Northwest Hills Planning Region	3,721	860, 959	4
Jewett City	Southeastern Connecticut Planning Region	3,464	860, 959	4
Kent	Northwest Hills Planning Region	3,084	860, 959	4
Sharon	Northwest Hills Planning Region	2,755	860, 959	4
Lyme	Lower Connecticut River Valley Planning Region	2,421	860, 959	5
Norfolk	Northwest Hills Planning Region	1,601	860, 959	3
Cornwall	Northwest Hills Planning Region	1,585	860, 959	7
Canaan	Northwest Hills Planning Region	1,088	860, 959	5

Places whose NANPA rate center could be matched to a Census place, with at least two exchanges. Sources: NANPA; Census Vintage 2024 estimates.