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: 601

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-601 A Kennett MO STLVMOOH2MD  6529 T-MOBILE USA, INC. 520      
573-601 0 Kennett MO MNCHMOAQGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-08-03   
573-601 1 Kennett MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-601 5 Kennett MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2022-09-25   
573-601 8 Kennett MO STLVMOOH2MD  6529 T-MOBILE USA, INC. 520   2021-10-11   
573-601 9 Kennett MO STLVMOOH2MD  6529 T-MOBILE USA, INC. 520   2021-10-11   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.