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: 524

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-524 A Webster City IA WBCYIA160MD  904D PREMIER COMMUNICATIONS, INC. - IA 632      
515-524 4 Webster City IA DESMIADTX1X  624H ONVOY SPECTRUM, LLC 632   2024-12-19   
515-524 6 Webster City IA WBCYIA160MD  904D PREMIER COMMUNICATIONS, INC. - IA 632   2021-11-28   
515-524 9 Webster City IA   515J IP HORIZON LLC 632   2025-08-21   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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