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: 412 [Rate centres in NPA 412] [Dial plan for NPA 412]

NXX: 502

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-502 A Pittsburgh Zone 6 PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-502 1 Pittsburgh Zone 6 PA   515J IP HORIZON LLC 234   2013-04-29   
412-502 2 Pittsburgh Zone 6 PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-502 3 Pittsburgh Zone 6 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2018-10-24   
412-502 5 Pittsburgh Zone 6 PA   002F BANDWIDTH.COM CLEC, LLC - PA 234   2013-11-22   
412-502 6 Pittsburgh Zone 6 PA   318J COMCAST IP PHONE, LLC 234   2015-06-26   
412-502 9 Pittsburgh Zone 6 PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.