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: 979 [Rate centres in NPA 979] [Dial plan for NPA 979]

NXX: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-358 A Wharton TX HSTNTXGIDS0  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
979-358 0 Wharton TX HSTPTXJAAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-10-29   
979-358 1 Wharton TX   515J IP HORIZON LLC 560   2017-12-15   
979-358 2 Wharton TX BYTWTXXARMD  624H ONVOY SPECTRUM, LLC 560   2021-11-26   
979-358 3 Wharton TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2010-03-15   
979-358 4 Wharton TX BYTWTXXARMD  624H ONVOY SPECTRUM, LLC 560   2021-11-26   
979-358 5 Wharton TX HSTNTXPB6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 560   2012-04-15   
979-358 7 Wharton TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560   2015-05-20   
979-358 8 Wharton TX   145J TERRA NOVA TELECOM INC. 560   2022-05-05   
979-358 9 Wharton TX HSTNTXGIDS0  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.