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: 828

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-828 A Walnut Hill FL ATMRALXAXMD  937C ONVOY, LLC - FL 480      
850-828 0 Walnut Hill FL MOBLALAZ11Z  073H TELNYX LLC 480      
850-828 2 Walnut Hill FL ATMRALXAXMD  937C ONVOY, LLC - FL 480      
850-828 3 Walnut Hill FL MOBLALAZXOY  927D BRIGHT HOUSE NTWS INFORMATION SVCS (FLORIDA) - FL 480      
850-828 6 Walnut Hill FL ATMRALXAXMD  937C ONVOY, LLC - FL 480      
850-828 8 Walnut Hill FL ATMRALXAXMD  937C ONVOY, LLC - FL 480      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.