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: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 688

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-688 A Lilbourn MO LLBRMOOVRS0  9533 SOUTHWESTERN BELL 520      
573-688 0 Lilbourn MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-688 1 Lilbourn MO LLBRMOOVRS0  9533 SOUTHWESTERN BELL 520      
573-688 2 Lilbourn MO LLBRMOOVRS0  9533 SOUTHWESTERN BELL 520      
573-688 4 Lilbourn MO STLSMO09WMD  516C AT&T CORP. 520   2011-10-04   
573-688 5 Lilbourn MO   145J TERRA NOVA TELECOM INC. 520   2021-01-20   
573-688 6 Lilbourn MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-07-24   
573-688 7 Lilbourn MO WNVLMOXAXBX  508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-07-22   
573-688 8 Lilbourn MO STLSMOGZFMD  965H FRACTEL, LLC 520   2020-01-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.