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.

Richwoods, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
573-342 A STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-342 0 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-342 1 STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-342 2 STLSMOWQCMD  515J IP HORIZON LLC 520      
573-342 3 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-342 4 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-342 5 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-342 6 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-342 7 STLSMOWQCMD  515J IP HORIZON LLC 520      
573-342 8   515J IP HORIZON LLC 520      
573-342 9 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-678 A RCWDMOORRS1  9533 SOUTHWESTERN BELL 520      
573-678 0   145J TERRA NOVA TELECOM INC. 520      
573-678 1 RCWDMOORRS1  9533 SOUTHWESTERN BELL 520      
573-678 2 RCWDMOORRS1  9533 SOUTHWESTERN BELL 520      
573-678 3 STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-678 4 STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520      
573-678 5 STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-678 6 STLSMO09WMD  516C AT&T CORP. 520      
573-678 7   5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520      
573-678 8 STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520      
573-678 9 STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-802 A STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-802 0 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-802 1 STLSMOGZ6MD  073H TELNYX LLC 520      
573-802 8   624H ONVOY SPECTRUM, LLC 520      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.