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.

NPA: 803 [Rate centres in NPA 803] [Dial plan for NPA 803]

NXX: 266

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
803-266 A Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 0 Williston SC CLMASCTLXXX  467E IDT AMERICA, CORP. - SC 434   2009-12-17   
803-266 1 Williston SC CLMASCSNXSY  548E ONVOY, LLC - SC 434   2020-08-20   
803-266 2 Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 3 Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 4 Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 5 Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 6 Williston SC CLMASCSNXSY  548E ONVOY, LLC - SC 434   2021-03-25   
803-266 7 Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 8 Williston SC WLSTSCXAPS0  0551 WILLISTON TEL. CO. 434      
803-266 9 Williston SC CLMASCSNXSY  548E ONVOY, LLC - SC 434   2021-03-25   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.