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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
854-275 8 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2024-10-05   
854-354 0 Mount Pleasant SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2023-10-23   
854-354 1 Mount Pleasant SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2023-10-23   
854-354 7 Mount Pleasant SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2024-10-05   
854-354 8 Mount Pleasant SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2023-10-23   
854-429 2 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2019-02-02   
854-429 3 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2019-02-02   
854-500 8 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2020-02-24   
854-500 9 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2020-02-24   
854-529 0 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-07-15   
854-529 1 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-07-15   
854-529 6 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-08-15   
854-529 7 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-08-15   
854-529 8 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-08-15   
854-529 9 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-08-15   
854-768 0 Edisto Island SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2022-03-12   
854-803 3 Folly Beach SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2022-02-21   
854-846 8 Beaufort SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2023-09-17   
854-900 2 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2020-02-24   
854-900 3 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2020-01-16   
854-900 4 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2020-01-16   
854-999 2 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-08-15   
854-999 5 Charleston SC 077F BANDWIDTH.COM CLEC, LLC - SC 436   2016-08-15   

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

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