Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 564 [Rate centres in NPA 564] [Dial plan for NPA 564]

NXX: 260

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
564-260 A Mount Vernon WA BOTHWAAK2MD  6529 T-MOBILE USA, INC. 674   2024-11-15   
564-260 0 Mount Vernon WA   732J NUSO, LLC 674   2024-11-18   
564-260 1 Mount Vernon WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2024-11-18   
564-260 3 Mount Vernon WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2025-01-13   
564-260 4 Mount Vernon WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2024-12-22   
564-260 5 Mount Vernon WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2024-12-22   
564-260 6 Mount Vernon WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2024-12-15   
564-260 7 Mount Vernon WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-07-25   
564-260 8 Mount Vernon WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-11-12   
564-260 9 Mount Vernon WA   6529 T-MOBILE USA, INC. 674   2024-11-15   

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

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