Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: MOBLALAZX6Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
850-789 0 Century FL 937C ONVOY, LLC - FL 480   2018-11-11   
850-789 1 Century FL 937C ONVOY, LLC - FL 480   2018-11-11   
850-789 2 Century FL 937C ONVOY, LLC - FL 480   2019-02-25   
850-789 3 Century FL 937C ONVOY, LLC - FL 480   2019-02-25   
850-789 4 Century FL 937C ONVOY, LLC - FL 480   2019-11-09   
850-789 5 Century FL 937C ONVOY, LLC - FL 480   2019-11-10   
850-789 6 Century FL 937C ONVOY, LLC - FL 480   2019-11-10   
850-789 7 Century FL 937C ONVOY, LLC - FL 480   2018-10-01   
850-789 8 Century FL 937C ONVOY, LLC - FL 480   2018-10-01   
850-789 9 Century FL 937C ONVOY, LLC - FL 480   2018-12-14   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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