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: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
832-999 A Sugar Land TX   903C ONVOY, LLC - TX 560      
832-999 0 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   
832-999 1 Sugar Land TX   903C ONVOY, LLC - TX 560   2011-11-25   
832-999 2 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   
832-999 3 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   
832-999 4 Sugar Land TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2013-01-18   
832-999 5 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   
832-999 6 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   
832-999 7 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   
832-999 8 Sugar Land TX   903C ONVOY, LLC - TX 560   2011-11-25   
832-999 9 Sugar Land TX   903C ONVOY, LLC - TX 560   2013-03-16   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.