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: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-540 A Cumberland Hill RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-10-03   
401-540 7 Cumberland Hill RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-10-03   
401-540 8 Cumberland Hill RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-10-03   
401-540 9 Cumberland Hill RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-10-03   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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