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

Last updated: Sat, 30 Jun 2018 02:36:54 UTC

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