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: CHTNSCDT20Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
854-429 7 Charleston SC 1784 SOUTH CAROLINA NET, INC. - SC 436   2020-06-24   
854-529 A Charleston SC 1784 SOUTH CAROLINA NET, INC. - SC 436      
854-529 3 Charleston SC 1784 SOUTH CAROLINA NET, INC. - SC 436   2015-12-28   
854-864 2 Isle of Palms SC 1784 SOUTH CAROLINA NET, INC. - SC 436   2024-08-25   
854-888 2 Summerville SC 1784 SOUTH CAROLINA NET, INC. - SC 436   2016-09-26   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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