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: 983 [Rate centres in NPA 983] [Dial plan for NPA 983]

NXX: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
983-204 A Denver CO   026D ONVOY, LLC - CO 656   2024-10-13   
983-204 0 Denver CO   026D ONVOY, LLC - CO 656      
983-204 1 Denver CO   026D ONVOY, LLC - CO 656      
983-204 2 Denver CO   026D ONVOY, LLC - CO 656      
983-204 3 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      
983-204 4 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      
983-204 5 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      
983-204 6 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      
983-204 7 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      
983-204 8 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      
983-204 9 Denver CO   6010 NEW CINGULAR WIRELESS PCS, LLC 656      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.