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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
240-644 1 Washington Zone 2 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-644 2 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-06-04   
240-644 3 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-16   
240-644 4 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-14   
240-644 5 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-14   
240-644 6 Washington Zone 2 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-644 7 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-07-14   
240-644 8 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-04-12   
240-644 9 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-04-23   
240-645 A Washington Zone 3 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-645 0 Washington Zone 3 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-645 1 Washington Zone 3 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-645 2 Washington Zone 3 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-08-23   
240-645 3 Washington Zone 3 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-08-23   
240-645 4 Washington Zone 3 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-645 5 Washington Zone 3 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
240-645 6 Washington Zone 3 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
240-645 7 Washington Zone 3 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
240-645 8 Washington Zone 3 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-09-15   
240-645 9 Washington Zone 3 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-04-20   
240-646 A Laurel MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-646 0 Laurel MD   829J PAETEC ITEL, LLC 236      
240-646 1 Laurel MD   829J PAETEC ITEL, LLC 236      
240-646 2 Laurel MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-07-17   
240-646 3 Laurel MD   829J PAETEC ITEL, LLC 236      
240-646 4 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-12-21   
240-646 5 Laurel MD   829J PAETEC ITEL, LLC 236      
240-646 6 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-12-21   
240-646 7 Laurel MD   829J PAETEC ITEL, LLC 236      
240-646 8 Laurel MD   829J PAETEC ITEL, LLC 236      
240-646 9 Laurel MD   829J PAETEC ITEL, LLC 236      
240-647 A Clear Spring MD HGTWMD53DS0  2593 CORE COMMUNICATIONS, INC.- MD 240      
240-647 0 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-08-02   
240-647 1 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-08-02   
240-647 2 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-08-02   
240-647 3 Clear Spring MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2019-06-21   
240-647 4 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-03-28   
240-647 5 Clear Spring MD   876D ONVOY, LLC - MD 240   2020-01-05   
240-647 6 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-07-31   
240-647 7 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-03-28   
240-647 8 Clear Spring MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-07-31   
240-647 9 Clear Spring MD   876D ONVOY, LLC - MD 240   2020-01-05   
240-648 A Keedysville MD HGTWMD53DS0  2593 CORE COMMUNICATIONS, INC.- MD 240      
240-648 0 Keedysville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-08-03   
240-648 1 Keedysville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-08-03   
240-648 2 Keedysville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-08-03   
240-648 3 Keedysville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 240   2018-11-20   
240-648 4 Keedysville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-05-02   
240-648 5 Keedysville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2019-06-21   
240-648 6 Keedysville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-05-02   

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

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