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.

OCN: 078H MOSAIC NETWORX LLC - PA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
267-606 A Philadelphia Zone 1 PA PHLAPAMKJMD  228      
267-606 1 Philadelphia Zone 1 PA PHLAPAMKJMD  228   2014-03-27   
267-606 2 Philadelphia Zone 1 PA PHLAPAMKJMD  228   2014-03-27   
267-881 A Philadelphia Zone 2 PA PHLAPAFGNMD  228      
267-881 0 Philadelphia Zone 2 PA PHLAPAFGNMD  228   2015-09-18   
412-314 A Pittsburgh Suburban Zone 10 PA PITBPAOKFMD  234      
412-314 0 Pittsburgh Suburban Zone 10 PA PITBPAOKFMD  234   2015-09-18   
412-789 A Pittsburgh Zone 1 PA PITBPADTTMD  234      
412-789 1 Pittsburgh Zone 1 PA PITBPADTTMD  234   2014-03-27   
412-789 2 Pittsburgh Zone 1 PA PITBPADTTMD  234   2014-03-27   
717-980 A Harrisburg City Zone-1 PA HRBGPAHAMMD  226      
717-980 0 Harrisburg City Zone-1 PA HRBGPAHAMMD  226   2015-09-18   
814-731 A Erie PA ERIEPAXMXMX  924      
814-731 0 Erie PA ERIEPAXMXMX  924   2015-09-18   

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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