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: 454

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-454 A Flat River MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-454 0 Flat River MO   624H ONVOY SPECTRUM, LLC 520   2024-03-23   
573-454 1 Flat River MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-18   
573-454 2 Flat River MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2003-09-30   
573-454 3 Flat River MO STLTMOBODS1  7432 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 520   2012-02-01   
573-454 4 Flat River MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2012-09-14   
573-454 5 Flat River MO STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2014-07-21   
573-454 6 Flat River MO   515J IP HORIZON LLC 520   2013-12-19   
573-454 7 Flat River MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2010-03-15   
573-454 8 Flat River MO STLSMOGZ6MD  073H TELNYX LLC 520   2017-06-13   
573-454 9 Flat River MO MNCHMOAQGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2022-10-03   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.