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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-900 A Tupelo OK OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536      
580-900 0 Tupelo OK   145J TERRA NOVA TELECOM INC. 536   2019-04-21   
580-900 9 Tupelo OK   145J TERRA NOVA TELECOM INC. 536   2025-04-18   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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