Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 401 [Rate centres in NPA 401] [Dial plan for NPA 401]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-538 A Cumberland Hill RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-08-08   
401-538 9 Cumberland Hill RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-08-08   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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