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.
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Switch: SHHGSCXB66E

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
803-666 A Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      
803-666 2 Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      
803-666 3 Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      
803-666 4 Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      
803-666 7 Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      
803-666 9 Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      
803-668 A Shaw AFB Heights SC 4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 434      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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