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: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 560

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-560 A Kirkland WA   598J FIVE9, INC. 674   2024-02-23   
425-560 0 Kirkland WA   598J FIVE9, INC. 674   2024-02-23   
425-560 8 Kirkland WA   939H COMMIO, LLC 674   2024-04-18   
425-560 9 Kirkland WA   939H COMMIO, LLC 674   2024-04-18   

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

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