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.
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Switch: DRHMNCXHDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
919-392 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-472 A Durham (Research Triangle Park) NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-474 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-476 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-574 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-884 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-905 A Durham (Research Triangle Park) NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-927 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426   2012-11-25   
919-941 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-943 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-991 A Durham (Research Triangle Park) NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-992 A Durham (Research Triangle Park) NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-993 A Durham (Research Triangle Park) NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-994 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-997 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      
919-998 A Durham NC 4334 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC 426      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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