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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OCN: 653C TELEPORT COMMUNICATIONS AMERICA LA - LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
985-666 5 Covington LA NWORLAMA55Z  490   2019-03-04   
985-746 6 Houma LA NWORLAMA55Z  490   2009-03-02   
985-800 6 Madisonville LA NWORLAMA55Z  490   2019-11-25   
985-833 7 Grand Isle LA NWORLAMA55Z  490   2022-09-08   
985-875 5 Covington LA NWORLAMA55Z  490   2019-06-19   
985-918 6 Morgan City LA NWORLAMA55Z  490   2015-08-27   
985-922 6 Bogalusa LA   490   2026-04-18   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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