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: 927

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-927 A Coalgate OK CLGTOKMARS1  9533 SOUTHWESTERN BELL 536      
580-927 0 Coalgate OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-927 1 Coalgate OK   9533 SOUTHWESTERN BELL 536      
580-927 2 Coalgate OK   9533 SOUTHWESTERN BELL 536      
580-927 3 Coalgate OK   9533 SOUTHWESTERN BELL 536      
580-927 4 Coalgate OK   073H TELNYX LLC 536   2019-09-28   
580-927 5 Coalgate OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-927 6 Coalgate OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-927 7 Coalgate OK   5562 METROPCS, INC. 536   2025-05-08   
580-927 8 Coalgate OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536   2015-07-01   
580-927 9 Coalgate OK   9533 SOUTHWESTERN BELL 536      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.