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

NXX: 546

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-546 A Crestview FL CRVWFLXAQMD  8692 US LEC OF FLORIDA, INC. 44814      
850-546 0 Crestview FL CRVWFLXARMD  6744 SOUTHERN COMMUNICATIONS SERVICES 44814      
850-546 1 Crestview FL CRVWFLXARMD  6744 SOUTHERN COMMUNICATIONS SERVICES 44814      
850-546 2 Crestview FL   506J TWILIO INTERNATIONAL INC 44814   2021-02-19   
850-546 4 Crestview FL CRVWFLXA9MD  937C ONVOY, LLC - FL 44814   2019-10-14   
850-546 6 Crestview FL CRVWFLXAQMD  8692 US LEC OF FLORIDA, INC. 44814   2010-10-28   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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