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: ELCMTXELDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
979-534 A El Campo TX 9533 SOUTHWESTERN BELL 560      
979-534 0 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 A El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 3 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 4 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 5 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 6 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 7 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-541 9 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-543 A El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 A El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 0 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 1 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 2 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 3 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 4 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 5 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 6 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 8 El Campo TX 9533 SOUTHWESTERN BELL 560      
979-578 9 El Campo TX 9533 SOUTHWESTERN BELL 560      

Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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