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: 975

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-975 A Graceville FL PNCYFLMAX6Z  937C ONVOY, LLC - FL 45009      
850-975 0 Graceville FL   937C ONVOY, LLC - FL 45009   2021-07-15   
850-975 1 Graceville FL   937C ONVOY, LLC - FL 45009   2021-07-15   
850-975 2 Graceville FL   937C ONVOY, LLC - FL 45009   2021-07-15   
850-975 3 Graceville FL   515J IP HORIZON LLC 45009   2025-06-06   
850-975 4 Graceville FL   515J IP HORIZON LLC 45009   2025-06-06   
850-975 5 Graceville FL   624H ONVOY SPECTRUM, LLC 45009   2023-11-06   
850-975 6 Graceville FL   624H ONVOY SPECTRUM, LLC 45009   2023-11-06   
850-975 7 Graceville FL   624H ONVOY SPECTRUM, LLC 45009   2023-11-06   
850-975 8 Graceville FL   624H ONVOY SPECTRUM, LLC 45009   2023-11-06   
850-975 9 Graceville FL   624H ONVOY SPECTRUM, LLC 45009   2023-11-06   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.