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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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-628 8 Encinal TX 903C ONVOY, LLC - TX 566   2010-11-05   
956-649 5 Laredo TX 903C ONVOY, LLC - TX 566   2022-02-13   
956-649 6 Laredo TX 903C ONVOY, LLC - TX 566   2022-02-13   
956-649 7 Laredo TX 903C ONVOY, LLC - TX 566   2022-02-13   
956-649 8 Laredo TX 903C ONVOY, LLC - TX 566   2022-02-13   
956-691 0 Laredo TX 903C ONVOY, LLC - TX 566   2023-10-18   
956-736 1 Laredo TX 903C ONVOY, LLC - TX 566   2023-09-02   
956-749 A Laredo TX 903C ONVOY, LLC - TX 566   2025-02-03   
956-749 0 Laredo TX 903C ONVOY, LLC - TX 566   2025-02-03   
956-758 4 Encinal TX 903C ONVOY, LLC - TX 566   2020-08-13   
956-758 7 Encinal TX 903C ONVOY, LLC - TX 566   2020-08-13   
956-758 9 Encinal TX 903C ONVOY, LLC - TX 566   2020-08-13   
956-770 9 Laredo TX 903C ONVOY, LLC - TX 566   2024-11-11   
956-815 A Laredo TX 903C ONVOY, LLC - TX 566      
956-815 0 Laredo TX 903C ONVOY, LLC - TX 566   2016-02-08   
956-815 1 Laredo TX 903C ONVOY, LLC - TX 566   2016-02-08   
956-815 2 Laredo TX 903C ONVOY, LLC - TX 566   2016-02-08   
956-857 A Laredo TX 903C ONVOY, LLC - TX 566      
956-857 0 Laredo TX 903C ONVOY, LLC - TX 566      
956-857 6 Laredo TX 903C ONVOY, LLC - TX 566      
956-857 9 Laredo TX 903C ONVOY, LLC - TX 566      
956-906 A Laredo TX 903C ONVOY, LLC - TX 566   2024-04-05   
956-906 0 Laredo TX 903C ONVOY, LLC - TX 566   2024-04-05   
956-906 1 Laredo TX 903C ONVOY, LLC - TX 566   2024-04-05   
956-906 8 Laredo TX 903C ONVOY, LLC - TX 566   2024-04-18   
956-948 6 Encinal TX 903C ONVOY, LLC - TX 566   2018-09-24   
956-948 7 Encinal TX 903C ONVOY, LLC - TX 566   2018-09-24   
956-952 7 Laredo TX 903C ONVOY, LLC - TX 566   2021-11-12   
956-955 6 Laredo TX 903C ONVOY, LLC - TX 566   2021-11-12   

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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