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: 816 [Rate centres in NPA 816] [Dial plan for NPA 816]

NXX: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
816-636 A Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 0 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 1 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 2 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 3 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 4 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 5 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 6 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 7 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 8 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   
816-636 9 Adrian MO   839J EON TELECOM, INC. 524   2025-06-13   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.