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: 417 [Rate centres in NPA 417] [Dial plan for NPA 417]

NXX: 727

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-727 A Polk MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522      
417-727 0 Polk MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2006-10-27   
417-727 2 Polk MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2021-05-11   

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

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