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Collinsville, IL Area Codes

Collinsville, Illinois (population 23,717) uses area codes 618 and 730.

Area code618
Area code730
Time zoneCentral
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CollinsvilleBellevilleCarpentersvilleO'FallonGranite CityEdwardsvilleAltonCarbondaleEast St. LouisGodfreyMarionCahokia HeightsFairview HeightsCollinsville
Collinsville and nearby cities in area code 618

Carriers with Collinsville numbers

93 prefixes are assigned to the Collinsville exchange: 74% mobile, 11% VoIP and cable, 15% landline.

CarrierPrefixes
AT&T Mobility34
T-Mobile18
Verizon Wireless17
American Messaging Services7
AT&T (Illinois Bell)4
Onvoy (Sinch)4
Verizon Business (MCImetro)2
Lumen (Level 3)1

Area codes used in Collinsville

Area codePrefixes serving CollinsvilleMain carriers in this code
61888Frontier, AT&T (Illinois Bell), AT&T Mobility
7305AT&T Mobility, Onvoy (Sinch), AT&T (Teleport)

Collinsville phone number prefixes

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

Nearby cities in area code 618

Questions

What is the area code for Collinsville, IL?
Collinsville uses 2 area codes: 618 and 730. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Collinsville in?
Collinsville is in the Central time zone.