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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-203 A Allison TX AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-203 0 Allison TX AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-203 1 Allison TX AMRLTX9843Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 546      
806-203 2 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 3 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 4 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 5 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 6 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 7 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 8 Allison TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-203 9 Allison 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.