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Norwalk, CT Area Codes

Norwalk, Connecticut (population 94,508) uses area codes 203 and 475.

Area code203
Area code475
Time zoneEastern
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Norwalk and nearby cities in area code 203

Carriers with Norwalk numbers

82 prefixes are assigned to the Norwalk exchange: 38% mobile, 17% VoIP and cable, 45% landline.

CarrierPrefixes
Frontier21
Verizon Wireless18
T-Mobile9
Cablevision Lightpath5
Spok4
Lumen (Level 3)4
Metropcs4
Verizon Business (MCImetro)3

Area codes used in Norwalk

Area codePrefixes serving NorwalkMain carriers in this code
20360Frontier, Verizon Wireless, AT&T Mobility
47522Onvoy (Sinch), Verizon Wireless, T-Mobile

Norwalk phone number prefixes

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

Nearby cities in area code 203

Questions

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