Home › Connecticut › Danbury

Danbury, CT Area Codes

Danbury, Connecticut (population 89,033) uses area codes 203 and 475.

Area code203
Area code475
Time zoneEastern
Local time now…
DanburyBridgeportStamfordNew HavenWaterburyNorwalkMeridenWest HavenMilfordSheltonNaugatuckEast HavenNorth HavenDanbury
Danbury and nearby cities in area code 203

Carriers with Danbury numbers

72 prefixes are assigned to the Danbury exchange: 42% mobile, 15% VoIP and cable, 43% landline.

CarrierPrefixes
Frontier25
Verizon Wireless15
T-Mobile9
AT&T Mobility6
Verizon Business (MCImetro)2
AT&T (Teleport)2
Lumen (Level 3)2
Bandwidth2

Area codes used in Danbury

Area codePrefixes serving DanburyMain carriers in this code
20354Frontier, Verizon Wireless, AT&T Mobility
47518Onvoy (Sinch), Verizon Wireless, T-Mobile

Danbury phone number prefixes

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

Nearby cities in area code 203

Questions

What is the area code for Danbury, CT?
Danbury 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 Danbury in?
Danbury is in the Eastern time zone.