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Swansea, IL Area Codes

Swansea, Illinois (population 14,356) uses area codes 618 and 730.

Area code618
Area code730
Time zoneCentral
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Swansea has no telephone exchange of its own in NANPA records; it is served by the Belleville exchange about 4 km away.

SwanseaBellevilleCarpentersvilleO'FallonGranite CityEdwardsvilleAltonCollinsvilleCarbondaleEast St. LouisGodfreyMarionCahokia HeightsSwansea
Swansea and nearby cities in area code 618

Carriers with Swansea numbers

43 prefixes are assigned to the Belleville exchange: 9% mobile, 49% VoIP and cable, 42% landline.

CarrierPrefixes
AT&T (Illinois Bell)16
AT&T (Teleport)12
Lumen (Level 3)5
T-Mobile4
Verizon Business (MCImetro)2
Paetec Itel1
Charter Ip Enabled Services1
Fractel1

Area codes used in Swansea

Area codePrefixes serving SwanseaMain carriers in this code
61831Frontier, AT&T (Illinois Bell), AT&T Mobility
73012AT&T Mobility, Onvoy (Sinch), AT&T (Teleport)

Swansea phone number prefixes

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

Nearby cities in area code 618

Questions

What is the area code for Swansea, IL?
Swansea 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 Swansea in?
Swansea is in the Central time zone.