Local Calling Guide

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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-615 0 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-615 1 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-615 2 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-615 3 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-615 4 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-615 5 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-615 6 Washington Zone 4 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
240-615 7 Washington Zone 4 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
240-615 8 Washington Zone 4 MD   318J COMCAST IP PHONE, LLC 236   2014-08-25   
240-615 9 Washington Zone 4 MD   5562 METROPCS, INC. 236   2013-07-20   
240-616 A Washington Zone 13 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-616 0 Washington Zone 13 MD   515J IP HORIZON LLC 236   2013-09-06   
240-616 1 Washington Zone 13 MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-12-01   
240-616 2 Washington Zone 13 MD   876D ONVOY, LLC - MD 236   2017-07-12   
240-616 3 Washington Zone 13 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-616 4 Washington Zone 13 MD   876D ONVOY, LLC - MD 236   2012-10-07   
240-616 5 Washington Zone 13 MD   5562 METROPCS, INC. 236   2015-01-03   
240-616 6 Washington Zone 13 MD   876D ONVOY, LLC - MD 236   2021-02-18   
240-616 7 Washington Zone 13 MD   508J CENTURYLINK COMMUNICATIONS, LLC 236   2013-10-01   
240-616 8 Washington Zone 13 MD   5562 METROPCS, INC. 236   2015-01-03   
240-616 9 Washington Zone 13 MD   876D ONVOY, LLC - MD 236   2024-05-03   
240-617 A Highfield MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-617 0 Highfield MD   071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-09-14   
240-617 1 Highfield MD   876D ONVOY, LLC - MD 240   2016-09-12   
240-617 2 Highfield MD   876D ONVOY, LLC - MD 240   2016-09-12   
240-617 3 Highfield MD   876D ONVOY, LLC - MD 240   2020-01-06   
240-617 4 Highfield MD   876D ONVOY, LLC - MD 240   2020-01-06   
240-617 5 Highfield MD   876D ONVOY, LLC - MD 240   2021-03-04   
240-617 6 Highfield MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-07-31   
240-617 7 Highfield MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2016-10-27   
240-617 8 Highfield MD   073H TELNYX LLC 240   2017-08-08   
240-617 9 Highfield MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-07-31   
240-618 A Washington Zone 10 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-618 0 Washington Zone 10 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2014-11-21   
240-618 1 Washington Zone 10 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2015-01-05   
240-618 2 Washington Zone 10 MD   876D ONVOY, LLC - MD 236   2014-12-31   
240-618 3 Washington Zone 10 MD   876D ONVOY, LLC - MD 236   2014-12-31   
240-618 4 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-02-14   
240-618 5 Washington Zone 10 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2016-05-24   
240-618 6 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-02-14   
240-618 7 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-24   
240-618 8 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-24   
240-618 9 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-01-17   
240-619 A Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-619 0 Washington Zone 5 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-09-13   
240-619 1 Washington Zone 5 MD   829J PAETEC ITEL, LLC 236   2006-01-14   
240-619 2 Washington Zone 5 MD   318J COMCAST IP PHONE, LLC 236   2007-10-02   
240-619 3 Washington Zone 5 MD   318J COMCAST IP PHONE, LLC 236   2006-09-26   
240-619 4 Washington Zone 5 MD   318J COMCAST IP PHONE, LLC 236   2006-09-26   
240-619 5 Washington Zone 5 MD   318J COMCAST IP PHONE, LLC 236   2007-10-02   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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