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: 355

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-355 A Cantonment FL PNSCFLWAXSX  829J PAETEC ITEL, LLC 44813   2024-12-17   
850-355 0 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 1 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 3 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 4 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 5 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 6 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 7 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 8 Cantonment FL   829J PAETEC ITEL, LLC 44813      
850-355 9 Cantonment FL   829J PAETEC ITEL, LLC 44813      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.