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: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-540 A Enid OK ENIDOKMARL1  9533 SOUTHWESTERN BELL 536      
580-540 0 Enid OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2014-03-20   
580-540 1 Enid OK   9533 SOUTHWESTERN BELL 536      
580-540 2 Enid OK   516C AT&T CORP. 536   2011-02-05   
580-540 3 Enid OK   7258 BROOKS FIBER COMMUNICATIONS OF OKLAHOMA, INC. - OK 536   2007-08-01   
580-540 4 Enid OK   390E CEBRIDGE TELECOM OK, LLC DBA SUDDENLINK COMMS - OK 536   2007-01-10   
580-540 5 Enid OK   5562 METRO PCS, INC. 536   2016-05-15   
580-540 6 Enid OK   362E YMAX COMMUNICATIONS CORP. - OK 536   2009-07-23   
580-540 7 Enid OK   362E YMAX COMMUNICATIONS CORP. - OK 536   2009-07-23   
580-540 8 Enid OK   390E CEBRIDGE TELECOM OK, LLC DBA SUDDENLINK COMMS - OK 536   2009-01-08   
580-540 9 Enid OK   390E CEBRIDGE TELECOM OK, LLC DBA SUDDENLINK COMMS - OK 536   2012-04-06   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.