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.

NPA: 832 [Rate centres in NPA 832] [Dial plan for NPA 832]

NXX: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
832-668 A Houston TX HSTNTXCLDS0  9533 SOUTHWESTERN BELL 560      
832-668 0 Houston TX   6701 AERIAL COMMUNICATIONS, INC. 560   2004-11-19   
832-668 1 Houston TX   9533 SOUTHWESTERN BELL 560      
832-668 2 Houston TX   9533 SOUTHWESTERN BELL 560      
832-668 3 Houston TX   9533 SOUTHWESTERN BELL 560      
832-668 4 Houston TX   6701 AERIAL COMMUNICATIONS, INC. 560   2004-12-20   
832-668 5 Houston TX   318J COMCAST IP PHONE, LLC 560   2006-04-04   
832-668 6 Houston TX   6701 AERIAL COMMUNICATIONS, INC. 560   2004-12-20   
832-668 7 Houston TX   9533 SOUTHWESTERN BELL 560      
832-668 8 Houston TX   9533 SOUTHWESTERN BELL 560      
832-668 9 Houston TX   6701 AERIAL COMMUNICATIONS, INC. 560   2004-11-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.