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: 405 [Rate centres in NPA 405] [Dial plan for NPA 405]

NXX: 829

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-829 A Cement OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
405-829 0 Cement OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
405-829 1 Cement OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2009-12-21   
405-829 2 Cement OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2019-12-19   
405-829 3 Cement OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2019-12-19   
405-829 4 Cement OK   409F ONVOY, LLC - OK 536   2016-07-06   
405-829 5 Cement OK   516C AT&T CORP. 536   2015-04-27   
405-829 6 Cement OK   409F ONVOY, LLC - OK 536   2021-01-21   
405-829 7 Cement OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2025-07-19   
405-829 8 Cement OK   409F ONVOY, LLC - OK 536   2021-01-23   
405-829 9 Cement OK   073H TELNYX LLC 536   2019-01-21   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.