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: ODSSTXEMDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
432-248 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-257 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-362 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-363 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-366 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-367 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-368 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-438 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-456 A Odessa TX 9533 SOUTHWESTERN BELL 542      
432-550 A Odessa EACS TX 9533 SOUTHWESTERN BELL 542      
432-552 A Odessa EACS TX 9533 SOUTHWESTERN BELL 542      
432-703 A Odessa TX 9533 SOUTHWESTERN BELL 542      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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