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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 850 [Rate centres in NPA 850] [Dial plan for NPA 850]

NXX: 813

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-813 A Ponce de Leon FL CRVWFLXA9MD  937C ONVOY, LLC - FL 44814      
850-813 0 Ponce de Leon FL   937C ONVOY, LLC - FL 44814   2019-03-18   
850-813 1 Ponce de Leon FL   624H ONVOY SPECTRUM, LLC 44814   2023-08-10   
850-813 3 Ponce de Leon FL   624H ONVOY SPECTRUM, LLC 44814   2023-08-10   
850-813 4 Ponce de Leon FL   937C ONVOY, LLC - FL 44814   2020-08-28   
850-813 5 Ponce de Leon FL   937C ONVOY, LLC - FL 44814   2020-08-28   
850-813 6 Ponce de Leon FL   624H ONVOY SPECTRUM, LLC 44814   2022-07-10   
850-813 7 Ponce de Leon FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 44814   2023-01-05   
850-813 8 Ponce de Leon FL   937C ONVOY, LLC - FL 44814   2020-10-05   
850-813 9 Ponce de Leon FL   937C ONVOY, LLC - FL 44814   2020-10-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.