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: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-312 A Elsberry MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-312 0 Elsberry MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-18   
573-312 1 Elsberry MO STLSMO09XMD  6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2020-08-14   
573-312 2 Elsberry MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-04-04   
573-312 3 Elsberry MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-04-04   
573-312 4 Elsberry MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-01-23   
573-312 5 Elsberry MO STLSMO09WMD  516C AT&T CORP. 520   2011-05-20   
573-312 6 Elsberry MO STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2012-10-15   
573-312 8 Elsberry MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-09-27   
573-312 9 Elsberry MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-09-27   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.