Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 248

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-248 A Durand IL DRNDILXARS1  1036 FRONTIER NORTH, INC. - IL 360      
815-248 0 Durand IL   224C ONVOY, LLC 360   2021-04-02   
815-248 1 Durand IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 360   2010-06-28   
815-248 2 Durand IL   1036 FRONTIER NORTH, INC. - IL 360      
815-248 3 Durand IL   1036 FRONTIER NORTH, INC. - IL 360      
815-248 4 Durand IL   1036 FRONTIER NORTH, INC. - IL 360      
815-248 5 Durand IL   224C ONVOY, LLC 360   2020-07-18   
815-248 6 Durand IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 360   2019-09-11   
815-248 7 Durand IL   508J CENTURYLINK COMMUNICATIONS, LLC 360   2016-02-18   
815-248 8 Durand IL   145J TERRA NOVA TELECOM INC. 360   2025-05-21   
815-248 9 Durand IL   1036 FRONTIER NORTH, INC. - IL 360      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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