Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-358 A Fairmont OK FAMTOKMARL0  9533 SOUTHWESTERN BELL 536      
580-358 0 Fairmont OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-19   
580-358 1 Fairmont OK   9533 SOUTHWESTERN BELL 536      
580-358 2 Fairmont OK   9533 SOUTHWESTERN BELL 536      
580-358 3 Fairmont OK   409F ONVOY, LLC - OK 536   2018-05-03   
580-358 4 Fairmont OK   073H TELNYX LLC 536   2019-09-28   
580-358 7 Fairmont OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2019-06-28   
580-358 8 Fairmont OK   409F ONVOY, LLC - OK 536   2016-06-14   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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