Mchenry, IL Area Codes: List, Map, and Phone Lookup

The city of Mchenry is in the state of Illinois. It has the following active area codes:

Compare Other Services in Mchenry, IL

Mchenry, IL has the following Exchanges (NXX)

NPA	NXX	Usage	Company Name	NXX Introduced Date
815	271	Landline	Mci Worldcom Communications, Inc. - Il	04/01/1997
815	307	Landline	Broadwing Communications, Llc - Il	10/31/2000
815	322	Landline	Level 3 Communications, Llc - Il	01/11/1997
815	331	Landline	Broadwing Communications, Llc - Il	10/11/1997
815	344	Landline	Ameritech Illinois	02/04/1994
815	349	Landline	Xo Illinois, Inc.	06/30/2001
815	363	Landline	Ameritech Illinois	02/04/1994
815	385	Landline	Ameritech Illinois	02/04/1994
815	388	Landline	Sprint Spectrum L.p.	05/18/1998
815	403	Wireless	Sprint Spectrum L.p.	10/31/2000
815	430	Landline	First Communications Llc - Il	03/03/2001
815	528	Landline	Teleport Communications America, Llc - Il	02/27/1999
815	578	Landline	Ameritech Illinois	01/14/2000
815	669	Landline	Level 3 Communications, Llc - Il	11/20/1998
815	679	Landline	Rcn Telecom Services Of Illinois, Inc. - Il	07/22/1999
779	704	Landline	Mci Worldcom Communications, Inc. - Il	10/31/2013
779	704	Landline	Mci Worldcom Communications, Inc. - Il	10/31/2013
815	759	Landline	Ameritech Illinois	02/04/1994
815	903	Wireless	American Messaging Services, Llc	02/27/2002

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