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: 373

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-373 A Bessie OK BESSOKMARS1  9533 SOUTHWESTERN BELL 536      
580-373 0 Bessie OK BESSOKMARS1  9533 SOUTHWESTERN BELL 536      
580-373 1 Bessie OK   624H ONVOY SPECTRUM, LLC 536   2024-10-24   
580-373 2 Bessie OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2021-07-04   
580-373 5 Bessie OK OKCYOKCEXXY  516C AT&T CORP. 536   2015-04-27   
580-373 6 Bessie OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-12-28   
580-373 7 Bessie OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-12-28   
580-373 8 Bessie OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2015-01-09   
580-373 9 Bessie OK   624H ONVOY SPECTRUM, LLC 536   2024-10-24   

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.