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: 577

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-577 A Hannibal MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520      
573-577 0 Hannibal MO STLSMOGZ6MD  073H TELNYX LLC 520   2017-06-16   
573-577 1 Hannibal MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-05-07   
573-577 2 Hannibal MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-11-28   
573-577 3 Hannibal MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-11-28   
573-577 4 Hannibal MO COVLILCQXMX  495J STRATUS NETWORKS 520   2021-04-12   
573-577 5 Hannibal MO STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2023-03-01   
573-577 7 Hannibal MO   965H FRACTEL, LLC 520   2020-01-15   
573-577 8 Hannibal MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2015-05-28   
573-577 9 Hannibal MO STLSMOGZEMD  145J TERRA NOVA TELECOM INC. 520   2024-09-14   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.