Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 850 [Rate centres in NPA 850] [Dial plan for NPA 850]

NXX: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-540 A Alligator Point FL PTSJFLXA5MD  919F MCC TELEPHONY OF FLORIDA, LLC - FL 45010      

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

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