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: 878 [Rate centres in NPA 878] [Dial plan for NPA 878]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
878-256 A Pittsburgh Zone 1 PA PITBPAOKBMD  7315 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 234      
878-256 0 Pittsburgh Zone 1 PA CRAFPAAIGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2022-07-19   
878-256 1 Pittsburgh Zone 1 PA CRAFPAAIGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2022-07-19   
878-256 2 Pittsburgh Zone 1 PA PITBPAFHDS0  7978 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 234   2022-07-19   
878-256 3 Pittsburgh Zone 1 PA PITBPAFHDS0  7978 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 234   2022-07-19   
878-256 4 Pittsburgh Zone 1 PA PITBPAFHDS0  7978 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 234   2022-07-19   
878-256 5 Pittsburgh Zone 1 PA CRAFPAAIGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2022-08-29   
878-256 6 Pittsburgh Zone 1 PA PITBPAOKBMD  7315 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 234   2022-07-18   
878-256 7 Pittsburgh Zone 1 PA PITBPAOKBMD  7315 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 234   2022-07-19   
878-256 8 Pittsburgh Zone 1 PA PITBPAOKBMD  7315 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 234   2022-08-25   
878-256 9 Pittsburgh Zone 1 PA CRAFPAAIGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2022-08-29   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.