Local Calling Guide

Area code/prefix search

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

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-666 A Rocky OK RCKYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-666 0 Rocky OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-22   
580-666 1 Rocky OK RCKYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-666 2 Rocky OK RCKYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-666 3 Rocky OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-14   
580-666 5 Rocky OK   145J TERRA NOVA TELECOM INC. 536   2025-04-09   
580-666 6 Rocky OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-03-24   
580-666 8 Rocky OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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