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.

Switch: BASNMO06DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
417-302 A Rockaway Beach MO 142C RYSTEC, INC 522      
417-303 A Weaubleau MO 142C RYSTEC, INC 522      
417-304 A Koshkonong MO 142C RYSTEC, INC 522      
417-305 A Collins MO 142C RYSTEC, INC 522      
417-333 A Pittsburg MO 142C RYSTEC, INC 522      
417-383 A Buffalo MO 142C RYSTEC, INC 522      
417-420 A Hurley MO 142C RYSTEC, INC 522      
417-446 A Louisburg MO 142C RYSTEC, INC 522      
417-481 A Jerico Springs MO 142C RYSTEC, INC 522      
417-487 A Schell City MO 142C RYSTEC, INC 522      
417-495 A Bronaugh MO 142C RYSTEC, INC 522      
417-497 A Milo MO 142C RYSTEC, INC 522      
417-550 A Everton MO 142C RYSTEC, INC 522      
417-551 A Ozark MO 142C RYSTEC, INC 522      
417-557 A Hermitage MO 142C RYSTEC, INC 522      
417-564 A Greenfield MO 142C RYSTEC, INC 522      
417-566 A Preston MO 142C RYSTEC, INC 522      
417-636 A Humansville MO 142C RYSTEC, INC 522      
417-670 A Urbana MO 142C RYSTEC, INC 522      
417-677 A Forsyth MO 142C RYSTEC, INC 522      
417-698 A El Dorado Springs MO 142C RYSTEC, INC 522      
417-707 A Norwood MO 142C RYSTEC, INC 522      
417-784 A Lowry City MO 142C RYSTEC, INC 522      
417-792 A Thomasville MO 142C RYSTEC, INC 522      
417-795 A Dadeville MO 142C RYSTEC, INC 522      
417-797 A Dora MO 142C RYSTEC, INC 522      
417-804 A Wheatland MO 142C RYSTEC, INC 522      
417-806 A Osceola MO 142C RYSTEC, INC 522      
417-807 A Caulfield MO 142C RYSTEC, INC 522      
417-819 A Cross Timbers MO 142C RYSTEC, INC 522      
417-821 A Thayer MO 142C RYSTEC, INC 522      
417-969 A Cape Fair MO 142C RYSTEC, INC 522      
417-973 A Branson MO 142C RYSTEC, INC 522      
417-977 A Arcola MO 142C RYSTEC, INC 522      
417-984 A Summersville MO 142C RYSTEC, INC 522      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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