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: 442 [Rate centres in NPA 442] [Dial plan for NPA 442]

NXX: 733

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-733 A Pinyon CA PLSPCA19CMD  516J TON80 COMMUNICATIONS, LLC 973      
442-733 0 Pinyon CA PLSPCAXGXPY  649C ONVOY, LLC - CA 973   2023-07-22   
442-733 6 Pinyon CA PLSPCA19CMD  516J TON80 COMMUNICATIONS, LLC 973   2022-03-17   
442-733 7 Pinyon CA PLSPCA199MD  145J TERRA NOVA TELECOM INC. 973   2024-09-08   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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