Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-579 A Slater IA SLTRIAXOPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
515-579 2 Slater IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-03-08   
515-579 5 Slater IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632   2019-11-28   
515-579 9 Slater IA SLTRIAXOPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632   2018-03-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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