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.

South Coldwater, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-589 A CDWRKSLURS0  9533 SOUTHWESTERN BELL 532      
580-589 0   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 532   2016-02-15   
580-589 1   073H TELNYX LLC 532   2019-09-28   
580-589 2   9533 SOUTHWESTERN BELL 532      
580-589 3   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 532   2020-05-30   
580-589 4   409F ONVOY, LLC - OK 532   2020-07-10   
580-589 5   409F ONVOY, LLC - OK 532   2020-07-10   
580-589 6   516C AT&T CORP. 532   2024-10-07   
580-589 7   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 532   2014-03-13   
580-589 8   409F ONVOY, LLC - OK 532   2023-08-06   
580-589 9   409F ONVOY, LLC - OK 532   2018-07-24   
580-785 A   624H ONVOY SPECTRUM, LLC 532   2025-03-06   
580-785 0   624H ONVOY SPECTRUM, LLC 532   2025-03-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.