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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-428 A Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815   2021-03-03   
850-428 0 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 1 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 2 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 3 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 4 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 5 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 6 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 7 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      
850-428 8 Fort Walton Beach FL FTWBFLXAXAX  5562 METRO PCS, INC. 44815   2017-06-29   
850-428 9 Fort Walton Beach FL PNSCFLFNFMD  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 44815      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.