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: 541 [Rate centres in NPA 541] [Dial plan for NPA 541]

NXX: 823

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
541-823 A Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 0 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 1 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 2 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 3 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 4 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 5 Ontario OR BOISIDMAXTX  7442 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OR 652   2011-12-01   
541-823 6 Ontario OR BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652   2012-11-13   
541-823 7 Ontario OR PCTLID26BMD  5562 METROPCS, INC. 652   2017-04-16   
541-823 8 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      
541-823 9 Ontario OR ONTRORXCDS0  9638 QWEST CORPORATION 652      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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