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, MO

<< 1 2 3 4 5 6 7 8 9 10 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
573-639 7 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2013-10-13   
573-639 8 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2013-10-13   
573-639 9 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 A CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 0 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 1 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 2 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 3 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 4 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 5 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 6 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 7 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 8 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521      
573-673 9 CLMAMOXAYMD  5562 METROPCS, INC. 521      
573-771 A CLMAMOXADS1  9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-777 A CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521      
573-777 0 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2008-07-01   
573-777 1 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2003-08-04   
573-777 2 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2008-08-26   
573-777 3 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2009-09-13   
573-777 4 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2010-08-13   
573-777 5 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2010-04-05   
573-777 6 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2008-02-15   
573-777 7 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2006-02-12   
573-777 8 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2007-06-04   
573-777 9 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2009-02-12   
573-801 A CLMAMOXAXSX  495J STRATUS NETWORKS 521      
573-801 0 JFCYMOXAXZX  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 521   2022-06-14   
573-801 1 CLMAMOXAXSX  495J STRATUS NETWORKS 521   2021-05-15   
573-801 2 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-11-11   
573-801 3 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-11-11   
573-801 4 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-11-11   
573-801 5 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-11-11   
573-801 6 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2022-10-24   
573-801 7 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2022-10-24   
573-801 8 JFCYMOXAXZX  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 521   2022-06-14   
573-801 9 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2022-10-24   
573-808 A CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521      
573-810 A CLMAMOXAXIX  093F ONVOY, LLC - MO 521      
573-810 0 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-04-25   
573-810 1 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-04-25   
573-810 2 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-04-25   
573-810 3 CLMAMOXAYMD  6529 T-MOBILE USA, INC. 521   2021-04-25   
573-810 4 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2021-06-06   
573-810 5 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-05-14   
573-810 6 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-05-14   
573-810 7 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2023-02-18   
573-810 8 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-04-01   
573-810 9 JFCYMOXAXZX  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 521   2022-11-07   
573-814 A CLMAMOXADS1  9784 BRIGHTSPEED OF MISSOURI, LLC 521      

<< 1 2 3 4 5 6 7 8 9 10 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.