Local Calling Guide
Area code/prefix search
  
        Marston, MO
      
  
    
      | NPA-NXX | BLOCK | Switch | OCN | LATA | LIR | Eff date | Disc date | 
  
  
          
          | 573-227 | A | STLSMOPLDS4 | 4932 LEVEL 3 COMMUNICATIONS, LLC - MO | 520 |  |  |  | 
        
          | 573-227 | 0 | STLSMOPLDS4 | 4932 LEVEL 3 COMMUNICATIONS, LLC - MO | 520 |  |  |  | 
        
          | 573-227 | 1 |  | 792K CHARTER IP ENABLED SERVICES, LLC | 520 |  | 2006-01-08 |  | 
        
          | 573-227 | 2 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2011-08-01 |  | 
        
          | 573-227 | 3 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2011-08-01 |  | 
        
          | 573-227 | 4 | STLSMOPLDS4 | 4932 LEVEL 3 COMMUNICATIONS, LLC - MO | 520 |  | 2005-08-22 |  | 
        
          | 573-227 | 5 | STLSMOGZDS5 | 225F PEERLESS NETWORK OF MISSOURI, LLC - MO | 520 |  | 2013-05-05 |  | 
        
          | 573-227 | 6 | STLSMOGZDS5 | 225F PEERLESS NETWORK OF MISSOURI, LLC - MO | 520 |  | 2013-05-05 |  | 
        
          | 573-227 | 8 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2014-05-24 |  | 
        
          | 573-227 | 9 |  | 515J IP HORIZON LLC | 520 |  | 2013-12-19 |  | 
        
          | 573-326 | A | STLTMOBOAMD | 5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 520 |  |  |  | 
        
          | 573-326 | 0 | STLTMOBOAMD | 5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 520 |  | 2003-04-11 |  | 
        
          | 573-326 | 1 | STLSMOGZ6MD | 073H TELNYX LLC | 520 |  | 2018-07-23 |  | 
        
          | 573-326 | 2 | STLSMOWQCMD | 515J IP HORIZON LLC | 520 |  | 2023-12-29 |  | 
        
          | 573-326 | 3 | STLTMOBOAMD | 5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 520 |  | 2010-02-27 |  | 
        
          | 573-326 | 4 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2015-02-28 |  | 
        
          | 573-326 | 5 | STLSMOWQDS2 | 093F ONVOY, LLC - MO | 520 |  | 2016-09-28 |  | 
        
          | 573-326 | 6 | STLSMOWQCMD | 515J IP HORIZON LLC | 520 |  | 2023-12-29 |  | 
        
          | 573-326 | 7 | STLSMO05XMX | 624H ONVOY SPECTRUM, LLC | 520 |  | 2025-01-11 |  | 
        
          | 573-326 | 8 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2017-02-10 |  | 
        
          | 573-326 | 9 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2009-01-18 |  | 
        
          | 573-643 | A | MRTNMONIRS2 | 9533 SOUTHWESTERN BELL | 520 |  |  |  | 
        
          | 573-643 | 0 | MRTNMONIRS2 | 9533 SOUTHWESTERN BELL | 520 |  |  |  | 
        
          | 573-643 | 1 | MRTNMONIRS2 | 9533 SOUTHWESTERN BELL | 520 |  |  |  | 
        
          | 573-643 | 2 | MRTNMONIRS2 | 9533 SOUTHWESTERN BELL | 520 |  |  |  | 
        
          | 573-643 | 3 | STLSMO05RMD | 993E BANDWIDTH.COM CLEC, LLC - MO | 520 |  | 2017-07-29 |  | 
        
          | 573-643 | 4 | STLSMOGZDS5 | 225F PEERLESS NETWORK OF MISSOURI, LLC - MO | 520 |  | 2018-11-29 |  | 
        
          | 573-643 | 5 | STLSMO09WMD | 516C AT&T CORP. | 520 |  | 2011-10-04 |  | 
        
          | 573-643 | 6 | MRTNMONIRS2 | 9533 SOUTHWESTERN BELL | 520 |  |  |  | 
        
          | 573-643 | 7 | STLSMOWQDS2 | 093F ONVOY, LLC - MO | 520 |  | 2021-07-24 |  | 
        
          | 573-643 | 8 |  | 145J TERRA NOVA TELECOM INC. | 520 |  | 2022-07-07 |  | 
  
  
   Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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