Sheffield, Illinois Area Codes

Map of Sheffield

Local time – 1 timezone

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Eastern timezone

Prefixes – 2 codes

Prefix
Type
Location
Carrier
Assigned
(779) 432
Landline
Mtco Communications, Inc.
2007/03/27
Landline
Frontier North, Inc. - IL
-
(815) 454-0
Landline
Itv-3, LLC D/b/a I3 Broadband
2003/05/21
(815) 454-1
Landline
Stratus Networks
2020/07/09
(815) 454-2
Landline
Frontier North, Inc. - IL
-
(815) 454-3
Landline
Onvoy, LLC
2021/03/06
(815) 454-4
Landline
Onvoy, LLC
2021/04/14
(815) 454-5
Landline
Onvoy, LLC
2020/05/18
(815) 454-6
Landline
Radiantiq LLC
2021/04/28
(815) 454-7
Landline
Centurylink Communications, LLC LA
2016/07/01
(815) 454-8
Landline
Mediacom Telephony of Illinois, LLC - IL
2010/03/16
(815) 454-9
Landline
Onvoy, LLC
2021/07/14