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.

Enid, OK

<< 1 2 3

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-977 6 OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-977 7 OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-977 8 OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-977 9 OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      

<< 1 2 3

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.