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: HRLNTXHGDS0

Remotes:

Switch Switch name Switch type
BWVLTXTERS0  Terminal  DRL 
LSFRTXLFRS0  Los Fresnos  DRL 
PTISTXPIRS0  Port Isabel  DRL 
PTISTXSPRS0  South Padre  DRL 
RHNDTXRHRS0  Rio Hondo  DRL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-228 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-291 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-364 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-365 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-366 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-389 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-392 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-412 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-421 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-423 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-425 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-427 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-428 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-430 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-440 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-444 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-577 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-610 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-730 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-752 A Harlingen TX 9533 SOUTHWESTERN BELL 568      
956-760 A Harlingen TX 9533 SOUTHWESTERN BELL 568      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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