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

NXX: 548

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-548 A Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 0 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 1 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 2 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 3 Enid OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-548 4 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 5 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 6 Enid OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-548 7 Enid OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-548 8 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      
580-548 9 Enid OK ENIDOKMADS0  9533 SOUTHWESTERN BELL 536      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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