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475 Area Code

Area code 475 serves Bridgeport, Stamford, New Haven, Waterbury, Norwalk and nearby communities in Connecticut. It has been in service since December 12, 2009, when it was split from 203.

StateConnecticut
Time zoneEastern
Local time now…
Prefixes in use292
Overlay with203
Projected to run out2055
BridgeportStamfordNew HavenWaterburyNorwalkDanburyMeridenWest HavenMilfordSheltonNaugatuckEast HavenNorth HavenAnsoniaWallingford CenterGreenwichOrangeDerbyBethelTrumbull CenterSandy HookRiversideLong HillCos CobRidgefieldNew CanaanStaplesOld GreenwichNorthfordBranford CenterCheshire VillageDaniels FarmNorotonByramBridgeportStamfordNew HavenWaterbury
Cities and towns served by area code 475

Who issues 475 numbers

Mobile 36%VoIP and cable 42%Landline 22%

Share of the 292 prefixes (the three digits after 475) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Onvoy (Sinch)68
Verizon Wireless47
T-Mobile40
Bandwidth18
AT&T Mobility18
Ton80 Communications17
Peerless Network15
Fractel12

Cities and towns in area code 475

CityPopulationOther area codes
Bridgeport152,273203
Stamford139,535203
New Haven138,774203
Waterbury115,771203
Norwalk94,508203
Danbury89,033203
Meriden60,810203
West Haven55,351203
Milford51,215203
Shelton42,880203
Naugatuck32,230203
East Haven27,729203
North Haven24,177203
Ansonia19,216203
Wallingford Center18,107203
Greenwich14,528203
Orange14,251203
Derby12,925203
Bethel11,606203
Trumbull Center10,137203
Sandy Hook9,718203
Riverside9,216203
Long Hill8,597203
Cos Cob7,354203
Ridgefield7,103203
New Canaan7,032203
Staples6,985203
Old Greenwich6,904203
Northford6,161203
Branford Center6,130203
Cheshire Village6,049203
Daniels Farm5,995203
Noroton5,522203
Byram5,011203

Got a call from 475?

A 475 number was originally issued in Connecticut, but that does not prove the caller is there. 42% of 475 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 292 prefixes in area code 475

Format: (475) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 475

Where is area code 475?
Area code 475 is in Connecticut. It covers Bridgeport, Stamford, New Haven, Waterbury, Norwalk, Danbury and 28 more cities and towns.
What time zone is area code 475?
Area code 475 is in the Eastern time zone.
Is 475 a toll-free number?
No. 475 is a geographic area code in Connecticut. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 475 share its area with 203?
203 and 475 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 475 run out of numbers?
NANPA's latest forecast projects the 203/475 overlay to exhaust in the fourth quarter of 2055. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Connecticut