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: OSWTKSXADS0

Remotes:

Switch Switch name Switch type
FNTAKSXARS0  FONTANA  RSC 
LNWDKSXARS0  LINWOOD  RSC 
PRKRKSXARS0  PARKER  RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
913-256 A Osawatomie Metro KS 1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 524      
913-755 A Osawatomie KS 1842 UNITED TEL. CO. OF KANSAS DBA CENTURYLINK 524      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.