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.

Oskaloosa, KS

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
785-574 A WTMRKSXADS1  5237 GIANT COMMUNICATIONS, INC. - KS 534      
785-574 1   5237 GIANT COMMUNICATIONS, INC. - KS 534   2014-05-02   
785-574 3   7593 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 534   2018-01-19   
785-863 A OSKLKSXARS0  1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 0   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 1   2240 LEVEL 3 COMMUNICATIONS, LLC - KS 534   2014-03-31   
785-863 2   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 3   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 4   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 5   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 6   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 7   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 8   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      
785-863 9   1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 534      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.