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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 426

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-426 A Eldridge MO STLDMOXADS0  1951 STOUTLAND TEL. CO. 522      
417-426 3 Eldridge MO STLDMOXADS0  1951 STOUTLAND TEL. CO. 522      
417-426 4 Eldridge MO STLDMOXADS0  1951 STOUTLAND TEL. CO. 522      
417-426 5 Eldridge MO STLDMOXADS0  1951 STOUTLAND TEL. CO. 522      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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