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: MDLDTX95XMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
432-316 A Odessa TX 478J NUSO, LLC 542      
432-316 2 Odessa TX 478J NUSO, LLC 542   2022-02-03   
432-338 8 Odessa TX 478J NUSO, LLC 542   2024-07-16   
432-338 9 Odessa TX 478J NUSO, LLC 542   2024-07-16   
432-577 9 Odessa TX 478J NUSO, LLC 542   2023-11-26   
432-582 6 Odessa EACS TX 478J NUSO, LLC 542   2023-11-26   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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