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.

Columbia, SC

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
803-401 6 CLMASCSN79F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 434      
803-401 7 CLMASCSN79F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 434      
803-401 8   548E ONVOY, LLC - SC 434   2026-01-05   
803-401 9 CLMASCSN79F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 434      
803-403 A CLMASCSNXSY  548E ONVOY, LLC - SC 434   2024-01-31   
803-403 0 CLMASCSNXSY  548E ONVOY, LLC - SC 434   2007-06-02   
803-403 1 CLMASCSNXMD  5258 LEVEL 3 COMMUNICATIONS, LLC - SC 434   2008-03-13   
803-403 2   548E ONVOY, LLC - SC 434   2009-02-14   
803-403 3 CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434   2008-06-09   
803-403 4 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2008-05-30   
803-403 5 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2008-05-30   
803-403 6 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2008-05-30   
803-403 7 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2008-05-30   
803-403 8 CLMASCSNXMD  5258 LEVEL 3 COMMUNICATIONS, LLC - SC 434   2008-07-17   
803-403 9 CLMASCSNXMD  5258 LEVEL 3 COMMUNICATIONS, LLC - SC 434   2008-07-17   
803-404 A CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434      
803-404 0 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2006-12-23   
803-404 1 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2006-12-23   
803-404 2 CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434   2008-01-06   
803-404 3 CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434   2008-05-18   
803-404 4 CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434   2008-05-04   
803-404 5 CLMASCSNXBY  829J PAETEC ITEL, LLC 434   2007-01-08   
803-404 6 CLMASCSNXBY  829J PAETEC ITEL, LLC 434   2007-01-08   
803-404 7 CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434   2007-01-05   
803-404 8 CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434   2007-01-05   
803-404 9 CLMASCSN13Z  8645 SUNCOM DBA T-MOBILE USA 434   2006-10-21   
803-407 A CLMASCDF78E  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 434      
803-409 A CLMASCSNXBY  829J PAETEC ITEL, LLC 434   2025-02-18   
803-409 0 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 1 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 2 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 3 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 4 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 5 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 6 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 7 CLMASCSNXBY  829J PAETEC ITEL, LLC 434      
803-409 8 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2004-10-02   
803-409 9 CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434   2004-10-02   
803-413 A CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434      
803-414 A CLMASCPQGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 434      
803-419 A CLMASCCH78E  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 434      
803-422 A CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434      
803-429 A CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434      
803-434 A CLMASCSN79F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 434      
803-440 A CLMASCSN27Z  5385 HARGRAY, INC. - SC 434      
803-440 0 CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434   2018-07-03   
803-440 1 CLMASCSN27Z  5385 HARGRAY, INC. - SC 434   2018-07-02   
803-440 2 CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434   2018-07-03   
803-440 3 CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434   2020-04-28   
803-440 4 CLMASCLNQMD  6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 434   2020-04-28   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.