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: MRLNTXMLRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-803 A Marlin EACS TX 9533 SOUTHWESTERN BELL 556      
254-803 1 Marlin EACS TX 9533 SOUTHWESTERN BELL 556      
254-803 2 Marlin EACS TX 9533 SOUTHWESTERN BELL 556      
254-803 3 Marlin EACS TX 9533 SOUTHWESTERN BELL 556      
254-803 5 Marlin EACS TX 9533 SOUTHWESTERN BELL 556      
254-804 A Marlin TX 9533 SOUTHWESTERN BELL 556      
254-804 0 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-804 1 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-804 9 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 A Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 0 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 1 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 2 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 3 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 4 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 5 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 6 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 7 Marlin TX 9533 SOUTHWESTERN BELL 556      
254-883 8 Marlin TX 9533 SOUTHWESTERN BELL 556      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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