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: CLMASCSNXSY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
803-403 A Columbia SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-590 A Chapin-Little Mountain South SC 548E ONVOY, LLC - SC 434      
803-721 A Batesburg SC 548E ONVOY, LLC - SC 434      
803-828 A Columbia SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-830 A Columbia SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-864 A Springfield-Salley SC 548E ONVOY, LLC - SC 434      
803-866 A Olar SC 548E ONVOY, LLC - SC 434      
803-877 A Newberry SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-888 A Columbia SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-910 A Bowman SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-913 A Hampton SC 548E ONVOY, LLC - SC 434      
803-916 A Branchville SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-921 A Eutawville SC 548E ONVOY, LLC - SC 434      
803-930 A Chapin-Little Mountain South SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-973 A Columbia SC 548E ONVOY, LLC - SC 434   2024-01-31   
803-990 A Orangeburg SC 548E ONVOY, LLC - SC 434      
803-999 A Columbia SC 548E ONVOY, LLC - SC 434   2024-01-31   
839-225 A North SC 548E ONVOY, LLC - SC 434      
839-239 A Chapin-Little Mountain North SC 548E ONVOY, LLC - SC 434      
839-245 A Barnwell SC 548E ONVOY, LLC - SC 434      
839-246 A Columbia SC 548E ONVOY, LLC - SC 434      
839-250 A Columbia SC 548E ONVOY, LLC - SC 434      
839-252 A Columbia SC 548E ONVOY, LLC - SC 434      
839-279 A Barnwell SC 548E ONVOY, LLC - SC 434   2024-05-21   
839-280 A Chapin-Little Mountain South SC 548E ONVOY, LLC - SC 434   2024-05-21   
839-281 A Newberry SC 548E ONVOY, LLC - SC 434   2024-05-21   
839-284 A Batesburg SC 548E ONVOY, LLC - SC 434   2024-05-16   
839-288 A Columbia SC 548E ONVOY, LLC - SC 434   2024-05-31   
839-298 A Newberry SC 548E ONVOY, LLC - SC 434   2024-11-01   
839-363 A Estill SC 548E ONVOY, LLC - SC 434   2024-01-31   
839-432 A Camden SC 548E ONVOY, LLC - SC 434      
839-569 A Barnwell SC 548E ONVOY, LLC - SC 434   2024-01-31   
839-854 A Orangeburg SC 548E ONVOY, LLC - SC 434      
854-265 A St George SC 548E ONVOY, LLC - SC 434   2024-05-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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