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: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-540 A Giddings TX GNGSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-540 0 Giddings TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570      
979-540 1 Giddings TX   624H ONVOY SPECTRUM, LLC 570   2021-12-04   
979-540 2 Giddings TX GNGSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-540 3 Giddings TX GNGSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-540 4 Giddings TX GNGSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-540 5 Giddings TX GNGSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 570      
979-540 6 Giddings TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570      
979-540 7 Giddings TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570      
979-540 8 Giddings TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570      
979-540 9 Giddings TX BRYNTXXAX4X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 570      

Last updated: Wed, 12 Jan 2022 16:20:07 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.