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Ansonia, CT Area Codes

Ansonia, Connecticut (population 19,216) uses area codes 203 and 475.

Area code203
Area code475
Time zoneEastern
Local time now…

Ansonia has no telephone exchange of its own in NANPA records; it is served by the New Haven exchange about 12.7 km away.

AnsoniaBridgeportStamfordNew HavenWaterburyNorwalkDanburyMeridenWest HavenMilfordSheltonNaugatuckEast HavenAnsonia
Ansonia and nearby cities in area code 203

Carriers with Ansonia 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 Ansonia

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

Ansonia 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 Ansonia, CT?
Ansonia 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 Ansonia in?
Ansonia is in the Eastern time zone.