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: 771

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-771 A Ashkum IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-771 0 Ashkum IL   624H ONVOY SPECTRUM, LLC 358   2021-11-13   
815-771 1 Ashkum IL   224C ONVOY, LLC 358   2021-04-01   
815-771 3 Ashkum IL   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-771 4 Ashkum IL   624H ONVOY SPECTRUM, LLC 358   2021-07-03   
815-771 5 Ashkum IL   624H ONVOY SPECTRUM, LLC 358   2021-05-23   
815-771 6 Ashkum IL   624H ONVOY SPECTRUM, LLC 358   2021-05-23   
815-771 7 Ashkum IL   224C ONVOY, LLC 358   2019-08-24   
815-771 8 Ashkum IL   495J STRATUS NETWORKS 358   2020-09-17   
815-771 9 Ashkum IL   624H ONVOY SPECTRUM, LLC 358   2021-11-13   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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