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: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-712 A Lawton OK   409F ONVOY, LLC - OK 536   2026-10-08   
580-712 0 Lawton OK   409F ONVOY, LLC - OK 536   2026-10-08   
580-712 1 Lawton OK   409F ONVOY, LLC - OK 536   2026-10-08   
580-712 2 Lawton OK   409F ONVOY, LLC - OK 536   2026-10-08   
580-712 3 Lawton OK   409F ONVOY, LLC - OK 536   2026-10-08   
580-712 4 Lawton OK   409F ONVOY, LLC - OK 536   2026-10-08   
580-712 6 Lawton OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2026-10-09   
580-712 7 Lawton OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2026-10-09   
580-712 8 Lawton OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2026-10-09   
580-712 9 Lawton OK   073H TELNYX LLC 536   2026-10-09   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.