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: 598

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-598 A Massbach IL MSBCILXARS0  1036 FRONTIER NORTH, INC. - IL 360      
815-598 0 Massbach IL FRPTILXAJMD  624H ONVOY SPECTRUM, LLC 360   2024-10-31   
815-598 3 Massbach IL MSBCILXARS0  1036 FRONTIER NORTH, INC. - IL 360      
815-598 4 Massbach IL RCFRILRCJMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2022-04-17   
815-598 5 Massbach IL FRPTILXAMMD  224C ONVOY, LLC 360   2020-07-18   
815-598 7 Massbach IL RCFRILRTXRX  508J CENTURYLINK COMMUNICATIONS, LLC 360   2016-02-18   
815-598 8 Massbach IL FRPTILXAMMD  224C ONVOY, LLC 360   2021-04-02   
815-598 9 Massbach IL MSBCILXARS0  1036 FRONTIER NORTH, INC. - IL 360      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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