Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 554

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-554 A Lake Park IA   6529 T-MOBILE USA, INC. 630   2025-08-09   
712-554 4 Lake Park IA   145J TERRA NOVA TELECOM INC. 630   2025-08-11   
712-554 9 Lake Park IA   6529 T-MOBILE USA, INC. 630   2025-08-09   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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