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: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-257 A Panama City FL PNCYFLMA32Z  829J PAETEC ITEL, LLC 45009   2024-12-17   
850-257 0 Panama City FL PNCYFLMA32Z  829J PAETEC ITEL, LLC 45009      
850-257 1 Panama City FL PNCYFLMAX7Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 45009   2008-12-30   
850-257 2 Panama City FL PNCYFLMA32Z  829J PAETEC ITEL, LLC 45009      
850-257 3 Panama City FL PNCYFLMAX7Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 45009   2007-08-07   
850-257 4 Panama City FL PNCYFLMAX7Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 45009   2008-03-28   
850-257 5 Panama City FL PNCYFLMA09Z  318J COMCAST IP PHONE, LLC 45009   2007-12-06   
850-257 6 Panama City FL PNCYFLMAX7Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 45009   2008-06-24   
850-257 7 Panama City FL PNCYFLMARMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45009   2012-10-06   
850-257 8 Panama City FL PNCYFLMARMD  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45009   2015-05-01   
850-257 9 Panama City FL PNCYFLMA32Z  829J PAETEC ITEL, LLC 45009      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.