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: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-721 A St Marks FL TLHSFLXAXEZ  829J PAETEC ITEL, LLC 953   2024-12-12   
850-721 0 St Marks FL TLHSFLXAXEZ  829J PAETEC ITEL, LLC 953      
850-721 1 St Marks FL TLHSFLXAXQX  937C ONVOY, LLC - FL 953   2020-08-21   
850-721 2 St Marks FL   515J IP HORIZON LLC 953   2025-07-04   
850-721 3 St Marks FL   515J IP HORIZON LLC 953   2025-07-04   
850-721 7 St Marks FL   515J IP HORIZON LLC 953   2022-10-10   
850-721 8 St Marks FL   515J IP HORIZON LLC 953   2022-10-10   
850-721 9 St Marks FL TLHSFLXAX0Z  624H ONVOY SPECTRUM, LLC 953   2021-03-09   

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

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