Local Calling Guide

Area code/prefix search

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Mount Airy, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-369 A MTARMDSDGT0  2593 CORE COMMUNICATIONS, INC. - MD 240      
240-394 A MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-02-03   
240-394 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-02-03   
240-394 1   071F BANDWIDTH.COM CLEC, LLC - MD 240   2010-02-22   
240-394 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-02-03   
240-394 3   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 240   2010-02-01   
240-394 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2008-03-13   
240-394 5   071F BANDWIDTH.COM CLEC, LLC - MD 240   2010-08-08   
240-394 6   071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-07-31   
240-394 7   071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-08-17   
240-394 8   071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-09-02   
240-394 9   071F BANDWIDTH.COM CLEC, LLC - MD 240   2008-12-04   
240-732 A   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-732 0   071F BANDWIDTH.COM CLEC, LLC - MD 240   2016-09-19   
240-732 1   876D ONVOY, LLC - MD 240   2016-09-12   
240-732 2   876D ONVOY, LLC - MD 240   2016-09-12   
240-732 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2018-04-02   
240-732 4   2593 CORE COMMUNICATIONS, INC. - MD 240   2019-03-29   
240-732 5   2593 CORE COMMUNICATIONS, INC. - MD 240   2019-03-29   
240-732 6   2593 CORE COMMUNICATIONS, INC. - MD 240   2019-03-29   
240-732 7   7575 CENTURYLINK COMMUNICATIONS LLC 240   2016-10-27   
240-732 8   073H TELNYX LLC 240   2017-08-08   
240-732 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2016-01-11   
240-875 A   876D ONVOY, LLC - MD 240   2019-12-11   
240-875 7   876D ONVOY, LLC - MD 240   2019-12-11   
240-875 8   876D ONVOY, LLC - MD 240   2019-12-11   
301-703 A FRDRMDFRJMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
301-703 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2014-05-05   
301-703 1   318J COMCAST IP PHONE, LLC 240   2015-09-17   
301-703 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2006-05-20   
301-703 3   2589 US LEC OF MARYLAND, INC. 240   2009-11-16   
301-703 4   9212 VERIZON MARYLAND, INC. 240   2004-11-17   
301-703 5   318J COMCAST IP PHONE, LLC 240   2012-05-26   
301-703 6   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 240   2013-06-10   
301-703 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2013-03-10   
301-703 8   318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-703 9   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2005-02-17   
301-829 A MTARMDMARS1  9212 VERIZON MARYLAND, INC. 240      
301-829 0   9212 VERIZON MARYLAND, INC. 240      
301-829 1   9212 VERIZON MARYLAND, INC. 240      
301-829 2   9212 VERIZON MARYLAND, INC. 240      
301-829 3   9212 VERIZON MARYLAND, INC. 240      
301-829 4   9212 VERIZON MARYLAND, INC. 240      
301-829 5   9212 VERIZON MARYLAND, INC. 240      
301-829 6   9212 VERIZON MARYLAND, INC. 240      
301-829 7   9212 VERIZON MARYLAND, INC. 240   2001-11-03   
301-829 8   9212 VERIZON MARYLAND, INC. 240      
301-829 9   9212 VERIZON MARYLAND, INC. 240      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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