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: GNBONCCKX5X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
336-444 A Pilot Mountain NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-455 A Greensboro NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-502 A Hays NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-551 A Boonville NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-638 A Greensboro NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-740 A Greensboro NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-754 A Walkertown NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-799 A Randleman NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
336-949 A Madison NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      
910-828 A Biscoe NC 7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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