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: 227

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-227 A Marston MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-227 0 Marston MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-227 1 Marston MO CPGRMOLK0MD  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520   2006-01-08   
573-227 2 Marston MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2011-08-01   
573-227 3 Marston MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2011-08-01   
573-227 4 Marston MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-08-22   
573-227 5 Marston MO STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
573-227 6 Marston MO STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
573-227 8 Marston MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-05-24   
573-227 9 Marston MO   515J IP HORIZON LLC 520   2013-12-19   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.