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.

Switch: GNBPNCDNDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
336-458 A Greensboro NC 7973 TIME WARNER COMMUNICATIONS AXS - NC - GREENSBORO 424      
336-464 A Winston-Salem NC 7973 TIME WARNER COMMUNICATIONS AXS - NC - GREENSBORO 424      
336-617 A Greensboro NC 7973 TIME WARNER COMMUNICATIONS AXS - NC - GREENSBORO 424   2004-08-25   
336-868 A Greensboro NC 7973 TIME WARNER COMMUNICATIONS AXS - NC - GREENSBORO 424      

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

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