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: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-377 A Madera CA FRSNCA01XCZ  516C AT&T CORP. 728      
559-377 0 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-08-12   
559-377 1 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-08-12   
559-377 2 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-08-12   
559-377 3 Madera CA   649C ONVOY, LLC - CA 728   2016-03-11   
559-377 4 Madera CA   649C ONVOY, LLC - CA 728   2016-03-11   
559-377 5 Madera CA   516C AT&T CORP. 728   2015-08-08   
559-377 6 Madera CA   649C ONVOY, LLC - CA 728   2016-04-24   
559-377 7 Madera CA   649C ONVOY, LLC - CA 728   2016-04-24   
559-377 8 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-10-16   
559-377 9 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-10-16   

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

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