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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-600 A Calera OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-600 0 Calera OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536   2023-09-17   
580-600 6 Calera OK   145J TERRA NOVA TELECOM INC. 536   2025-07-10   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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