Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 554

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-554 A Brighton IA   6529 T-MOBILE USA, INC. 634   2025-11-01   
319-554 0 Brighton IA   6529 T-MOBILE USA, INC. 634   2025-11-01   
319-554 4 Brighton IA   145J TERRA NOVA TELECOM INC. 634   2025-11-03   
319-554 9 Brighton IA   6529 T-MOBILE USA, INC. 634   2025-11-01   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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