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
240-543 1 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-12-04   
240-543 2 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-10-09   
240-543 3 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-11   
240-543 4 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-11   
240-543 5 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-11   
240-543 6 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-11-30   
240-543 7 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-11-30   
240-543 8 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-09-15   
240-543 9 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-09-15   
240-544 A Washington Zone 14 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-544 0 Washington Zone 14 MD   829J PAETEC ITEL, LLC 236      
240-544 1 Washington Zone 14 MD   829J PAETEC ITEL, LLC 236      
240-544 2 Washington Zone 14 MD   829J PAETEC ITEL, LLC 236      
240-544 3 Washington Zone 14 MD   829J PAETEC ITEL, LLC 236      
240-544 4 Washington Zone 14 MD LARLMDCCDS0  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 236   2004-04-06   
240-544 5 Washington Zone 14 MD   829J PAETEC ITEL, LLC 236      
240-544 6 Washington Zone 14 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-14   
240-544 7 Washington Zone 14 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-14   
240-544 8 Washington Zone 14 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-02-09   
240-544 9 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-545 A Washington Zone 15 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-545 0 Washington Zone 15 MD   829J PAETEC ITEL, LLC 236      
240-545 1 Washington Zone 15 MD   829J PAETEC ITEL, LLC 236      
240-545 2 Washington Zone 15 MD   829J PAETEC ITEL, LLC 236      
240-545 3 Washington Zone 15 MD   829J PAETEC ITEL, LLC 236      
240-545 4 Washington Zone 15 MD   829J PAETEC ITEL, LLC 236      
240-545 5 Washington Zone 15 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-10-22   
240-545 6 Washington Zone 15 MD WASHDC127MD  073H TELNYX LLC 236   2017-04-27   
240-545 7 Washington Zone 15 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2010-08-19   
240-545 8 Washington Zone 15 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-545 9 Washington Zone 15 MD   876D ONVOY, LLC - MD 236   2025-05-10   
240-546 A Washington Zone 16 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-546 0 Washington Zone 16 MD   829J PAETEC ITEL, LLC 236      
240-546 1 Washington Zone 16 MD   829J PAETEC ITEL, LLC 236      
240-546 2 Washington Zone 16 MD   829J PAETEC ITEL, LLC 236      
240-546 3 Washington Zone 16 MD   829J PAETEC ITEL, LLC 236      
240-546 4 Washington Zone 16 MD   829J PAETEC ITEL, LLC 236      
240-546 5 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
240-546 6 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-06-27   
240-546 7 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
240-546 8 Washington Zone 16 MD   515J IP HORIZON LLC 236   2016-05-31   
240-546 9 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-05-01   
240-547 A Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-547 0 Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 1 Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 2 Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-547 3 Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 4 Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-547 5 Laurel MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-547 6 Laurel MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2006-10-27   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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