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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Switch: FRSNCA0112Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
559-212 A Hanford CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-218 A Fresno CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-320 A Fresno CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-329 A Tulare CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-334 A Visalia CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-339 A Porterville CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-390 A Alpaugh CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-391 A Reedley CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-517 A Madera CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-537 A Hanford CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-577 A Fresno CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-605 A Tulare CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-764 A Madera CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-797 A Clovis CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-803 A Fresno CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-806 A Visalia CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      
559-828 A Selma CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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