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: 333

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-333 A Caruthersville MO CTVLMOEDRSL  9533 SOUTHWESTERN BELL 520      
573-333 0 Caruthersville MO   9533 SOUTHWESTERN BELL 520      
573-333 1 Caruthersville MO   9533 SOUTHWESTERN BELL 520      
573-333 2 Caruthersville MO   9533 SOUTHWESTERN BELL 520      
573-333 3 Caruthersville MO   5562 METROPCS, INC. 520   2018-04-05   
573-333 4 Caruthersville MO   9533 SOUTHWESTERN BELL 520      
573-333 5 Caruthersville MO   9533 SOUTHWESTERN BELL 520      
573-333 6 Caruthersville MO   9533 SOUTHWESTERN BELL 520      
573-333 7 Caruthersville MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2011-05-01   
573-333 8 Caruthersville MO   145J TERRA NOVA TELECOM INC. 520   2023-08-06   
573-333 9 Caruthersville MO   9533 SOUTHWESTERN BELL 520      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.