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: GNWDSCXCUMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
864-337 A Greenwood SC 8645 SUNCOM DBA T-MOBILE USA 430      
864-340 A Laurens Rural SC 8645 SUNCOM DBA T-MOBILE USA 430      
864-341 A Mountville SC 8645 SUNCOM DBA T-MOBILE USA 430      
864-377 A Greenwood SC 8645 SUNCOM DBA T-MOBILE USA 430      
864-407 A Greenwood SC 8645 SUNCOM DBA T-MOBILE USA 430      
864-450 A Greenwood SC 8645 SUNCOM DBA T-MOBILE USA 430      
864-935 A Laurens Rural SC 8645 SUNCOM DBA T-MOBILE USA 430   2024-06-08   

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

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