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: CLMAMOXAXBX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-229 6 Meta MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2014-07-31   
573-469 7 Jefferson City MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2013-08-01   
573-488 A Ashland MO 508J CENTURYLINK COMMUNICATIONS, LLC 521      
573-488 7 Ashland MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2013-09-30   
573-553 7 Westphalia MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2014-07-31   
573-554 A Columbia MO 508J CENTURYLINK COMMUNICATIONS, LLC 521      
573-554 1 Columbia MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2016-04-20   
573-554 7 Columbia MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2013-08-01   
573-691 6 Jefferson City MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2018-08-03   
573-744 6 Freeburg MO 508J CENTURYLINK COMMUNICATIONS, LLC 521   2014-07-31   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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