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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
267-739 A Philadelphia Zone 2 PA WBRTPAPPCM8  228 2005-10-27   
412-340 A Pittsburgh Suburban Zone 19 PA INDIPAASCM8  234    
570-318 A Williamsport PA PTTVPASMCM8  232    
570-370 A Bloomsburg PA PTTVPASMCM8  232    
570-440 A Pottsville PA PTTVPASMCM8  232    
570-973 A Sunbury PA PTTVPASMCM8  232    
610-204 A Allentown (Lehigh) PA WBRTPAPPCM8  228    
610-281 A Kutztown (Berks) PA WBRTPAPPCM8  228    
610-424 A Allentown (Lehigh) PA WBRTPAPPCM8  228    
717-206 A Harrisburg City Zone-1 PA LWPXPABHCM8  226    
717-310 A Lewistown (Mifflin) PA LWPXPABHCM8  226    
717-750 A Mechanicsburg (Cumberland) PA LWPXPABHCM8  226    
814-293 A Huntingdon PA ALNAPAACCM8  230    
814-405 A Altoona PA ALNAPAACCM8  230    

Last updated: Sat, 10 Nov 2018 02:05:23 UTC

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