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North Haven, CT Area Codes

North Haven, Connecticut (population 24,177) uses area codes 203 and 475.

Area code203
Area code475
Time zoneEastern
Local time now…

North Haven has no telephone exchange of its own in NANPA records; it is served by the New Haven exchange about 9.7 km away.

North HavenBridgeportStamfordNew HavenWaterburyNorwalkDanburyMeridenWest HavenMilfordSheltonNaugatuckEast HavenNorth Haven
North Haven and nearby cities in area code 203

Carriers with North Haven numbers

188 prefixes are assigned to the New Haven exchange: 36% mobile, 15% VoIP and cable, 49% landline.

CarrierPrefixes
Frontier72
Verizon Wireless28
T-Mobile21
AT&T Mobility18
Onvoy (Sinch)9
AT&T (Teleport)5
Lumen (Level 3)5
Paetec Itel5

Area codes used in North Haven

Area codePrefixes serving North HavenMain carriers in this code
203145Frontier, Verizon Wireless, AT&T Mobility
47543Onvoy (Sinch), Verizon Wireless, T-Mobile

North Haven phone number prefixes

Numbers starting with these first six digits were originally assigned to the New Haven exchange.

Nearby cities in area code 203

Questions

What is the area code for North Haven, CT?
North Haven uses 2 area codes: 203 and 475. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is North Haven in?
North Haven is in the Eastern time zone.