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Fairfield, OH Area Codes

Fairfield, Ohio (population 44,682) uses area codes 513 and 283.

Area code513
Area code283
Time zoneEastern
Local time now…

Fairfield has no telephone exchange of its own in NANPA records; it is served by the Hamilton exchange about 7.3 km away.

FairfieldCincinnatiHamiltonMiddletownMasonOxfordLebanonNorwoodMonroeTrentonBridgetownHarrisonLovelandFairfield
Fairfield and nearby cities in area code 513

Carriers with Fairfield numbers

61 prefixes are assigned to the Hamilton exchange: 18% mobile, 26% VoIP and cable, 56% landline.

CarrierPrefixes
altafiber (Cincinnati Bell)26
Lumen (Level 3)5
Verizon Wireless5
Onvoy (Sinch)5
AT&T Mobility4
AT&T (Teleport)2
Metropcs2
Verizon Business (MCImetro)2

Area codes used in Fairfield

Area codePrefixes serving FairfieldMain carriers in this code
51355altafiber (Cincinnati Bell), Verizon Wireless, T-Mobile
2836Onvoy (Sinch), AT&T Mobility, Wide Voice

Fairfield phone number prefixes

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

Nearby cities in area code 513

Questions

What is the area code for Fairfield, OH?
Fairfield uses 2 area codes: 513 and 283. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Fairfield in?
Fairfield is in the Eastern time zone.