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: 833

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-833 A Pocahontas MO PCHNMOTERSM  9533 SOUTHWESTERN BELL 520      
573-833 0 Pocahontas MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-18   
573-833 1 Pocahontas MO PCHNMOTERSM  9533 SOUTHWESTERN BELL 520      
573-833 3 Pocahontas MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-09-29   
573-833 4 Pocahontas MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-05-24   
573-833 5 Pocahontas MO STLSMO09WMD  516C AT&T CORP. 520   2011-10-04   
573-833 6 Pocahontas MO PCHNMOTERSM  9533 SOUTHWESTERN BELL 520      
573-833 8 Pocahontas MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-09-29   
573-833 9 Pocahontas MO CPGRMOLK0MD  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520   2018-02-07   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.