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: 806 [Rate centres in NPA 806] [Dial plan for NPA 806]

NXX: 591

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-591 A Hereford TX AMRLTXDRSMD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 546      
806-591 1 Hereford TX AMRLTX02XBX  004F BANDWIDTH.COM CLEC, LLC - TX 546      
806-591 2 Hereford TX AMRLTX02XBX  004F BANDWIDTH.COM CLEC, LLC - TX 546      
806-591 3 Hereford TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-591 4 Hereford TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-591 5 Hereford TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-591 6 Hereford TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-591 7 Hereford TX AMRLTX02X4Y  508J CENTURYLINK COMMUNICATIONS, LLC 546      
806-591 8 Hereford TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-591 9 Hereford TX AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.