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: CRCHTXBBJMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
361-278 7 Corpus Christi TX 732J NUSO, LLC 564   2024-04-06   
361-281 2 Corpus Christi TX 732J NUSO, LLC 564   2024-04-06   
361-357 A Corpus Christi TX 732J NUSO, LLC 564      
361-357 2 Corpus Christi TX 732J NUSO, LLC 564   2023-04-09   
361-438 9 Corpus Christi TX 732J NUSO, LLC 564   2024-08-29   
361-906 2 Corpus Christi TX 732J NUSO, LLC 564   2024-08-29   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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