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: GNBPNCEM6MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
336-453 6 Madison NC 145J TERRA NOVA TELECOM INC. 424   2026-03-13   
336-484 5 Monticello NC 145J TERRA NOVA TELECOM INC. 424   2026-06-05   
336-535 4 Shoals NC 145J TERRA NOVA TELECOM INC. 424   2026-03-13   
336-798 9 Southmont NC 145J TERRA NOVA TELECOM INC. 424   2026-03-13   
336-823 9 High Point NC 145J TERRA NOVA TELECOM INC. 424   2026-01-19   
336-961 9 Forbush NC 145J TERRA NOVA TELECOM INC. 424   2026-01-03   
743-222 A Greensboro NC 145J TERRA NOVA TELECOM INC. 424      
743-288 8 East Bend NC 145J TERRA NOVA TELECOM INC. 424   2026-01-30   
743-292 2 Elkin NC 145J TERRA NOVA TELECOM INC. 424   2026-06-04   
910-569 3 Biscoe NC 145J TERRA NOVA TELECOM INC. 424   2026-03-13   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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