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: RSBGTXRRDS0

Remotes:

Switch Switch name Switch type
BYCYTXBYDS0  BAY CITY  EXM 
ELCMTXELDS0  El CAMPO  EXM 
MTGRTXMTRS1  MATAGORDA  5ER 
SMLKTXSMDS0  EL CAMPO  EXM 
VLLDTXVLDS0  VALLEY LODGE  EXM 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
832-471 A Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560      
832-471 1 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 2 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 3 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 4 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-06-30   
832-471 5 Richmond-Rosenberg EMS TX 9533 SOUTHWESTERN BELL 560   2011-07-06   
832-595 A Richmond-Rosenberg TX 9533 SOUTHWESTERN BELL 560      

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

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