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Decatur, IL Area Codes

Decatur, Illinois (population 67,884) uses area codes 217 and 447.

Area code217
Area code447
Time zoneCentral
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DecaturSpringfieldChampaignUrbanaQuincyDanvilleJacksonvilleCharlestonMattoonChathamLincolnEffinghamRantoulDecatur
Decatur and nearby cities in area code 217

Carriers with Decatur numbers

49 prefixes are assigned to the Decatur exchange: 39% mobile, 12% VoIP and cable, 49% landline.

CarrierPrefixes
AT&T (Illinois Bell)18
Verizon Wireless7
AT&T Mobility7
T-Mobile5
Paetec Itel3
AT&T (Teleport)3
Lumen (Level 3)2
Telnyx1

Area codes used in Decatur

Area codePrefixes serving DecaturMain carriers in this code
21744Frontier, AT&T (Illinois Bell), AT&T Mobility
4475Onvoy (Sinch), AT&T Mobility, Fractel

Decatur phone number prefixes

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

Nearby cities in area code 217

Questions

What is the area code for Decatur, IL?
Decatur uses 2 area codes: 217 and 447. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Decatur in?
Decatur is in the Central time zone.