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: MCALTXMUDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-217 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-362 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-429 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-578 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-618 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-630 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-631 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-632 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-661 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-664 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-668 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-682 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-683 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-686 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-687 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-688 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-872 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-926 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-928 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-971 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-972 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-992 A McAllen TX 9533 SOUTHWESTERN BELL 568      
956-994 A McAllen TX 9533 SOUTHWESTERN BELL 568      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.