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: CHTNSCDTX5Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
854-301 9 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2025-09-15   
854-429 6 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2019-07-28   
854-529 4 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2016-06-24   
854-900 5 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2019-04-22   
854-900 6 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2019-04-22   
854-900 7 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2019-04-22   
854-900 8 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2019-04-22   
854-900 9 Charleston SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2019-04-22   
854-910 6 Yemassee SC 635C TELEPORT COMMUNICATIONS AMERICA SC- LLC 436   2023-10-06   

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

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