Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 594

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-594 A Exeter CA FRVLCAXFRL1  4420 FRONTIER CALIFORNIA INC. 728      
559-594 0 Exeter CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2025-02-03   
559-594 1 Exeter CA   145J TERRA NOVA TELECOM INC. 728   2024-02-11   
559-594 2 Exeter CA   9262 UTILITY TELECOM GROUP, LLC - CA 728   2016-12-08   
559-594 3 Exeter CA   649C ONVOY, LLC - CA 728   2011-09-27   
559-594 4 Exeter CA   4420 FRONTIER CALIFORNIA INC. 728      
559-594 5 Exeter CA   4420 FRONTIER CALIFORNIA INC. 728      
559-594 6 Exeter CA   4420 FRONTIER CALIFORNIA INC. 728      
559-594 7 Exeter CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2017-05-07   
559-594 8 Exeter CA   776C CHARTER FIBERLINK CA-CCO, LLC - CA 728   2017-09-14   
559-594 9 Exeter CA   4420 FRONTIER CALIFORNIA INC. 728      

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

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