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.

Ludington, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
231-233 A GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-239 A GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-239 0 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-239 1 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-239 2 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2008-07-05   
231-239 3 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2009-02-05   
231-239 4 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2009-04-25   
231-239 5 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2009-04-25   
231-239 6 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-18   
231-239 7 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2017-05-26   
231-239 8 GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2018-06-02   
231-239 9 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-261 A MSKGMIXK5MD  116F PENINSULA FIBER NETWORK, LLC - MI 348      
231-261 0 MSKGMIXK5MD  116F PENINSULA FIBER NETWORK, LLC - MI 348   2019-02-21   
231-261 1 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-06-14   
231-261 2 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-06-14   
231-261 3 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-06-17   
231-261 4 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-02-04   
231-261 5 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-02-04   
231-261 6 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-02-04   
231-261 7 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   
231-261 8 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   
231-261 9 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-06-17   
231-316 A GDRPMIBQ1MD  4632 TELNET WORLDWIDE, INC. 348      
231-336 A GDRPMIBL44Z  6630 USA MOBILITY WIRELESS, INC. 348      
231-425 A GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 0 GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 2 GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-02-11   
231-425 3 ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2007-02-25   
231-425 4 ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2008-09-04   
231-425 5 MSKGMIXKFMD  691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI 348   2007-04-30   
231-425 6 GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 7 GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 8 GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 9 ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2015-06-13   
231-480 A GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-480 0 GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-480 1 GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2009-03-07   
231-480 2 LDNGMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348   2013-02-20   
231-480 3 GDRQMIBODS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 348   2011-05-01   
231-480 4 GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-07-04   
231-480 6 GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2018-08-26   
231-480 7 TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2017-10-04   
231-480 8 MSKGMIXKQMD  624H ONVOY SPECTRUM, LLC 348   2021-06-19   
231-480 9 GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-583 A GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-583 0 GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-583 1 GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-690 A GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-813 A GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-843 A LDNGMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-845 A LDNGMIXGDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-852 A WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-852 0 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-852 3 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2011-09-02   
231-852 4 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-852 9 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2021-06-06   
231-907 A WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-907 0 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-907 1 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2009-11-03   
231-907 2 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2011-05-14   
231-907 3 GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2011-11-02   
231-907 4 GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2016-05-13   
231-907 5 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-07-11   
231-907 6 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-07-11   
231-907 7 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2016-08-25   
231-907 8 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2014-10-09   
231-907 9 WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2010-07-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.