Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 574 [Rate centres in NPA 574] [Dial plan for NPA 574]

NXX: 412

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-412 A South Bend IN   097D ONVOY, LLC - IN 332   2025-11-13   
574-412 0 South Bend IN   097D ONVOY, LLC - IN 332   2025-11-13   
574-412 1 South Bend IN   097D ONVOY, LLC - IN 332   2025-11-14   
574-412 2 South Bend IN   097D ONVOY, LLC - IN 332   2025-11-14   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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