Local Calling Guide

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Search area code/prefix (NPA/NXX)
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Washington Zone 2, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-383 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-383 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-395 A   829J PAETEC ITEL, LLC 236   2025-04-02   
240-395 0   829J PAETEC ITEL, LLC 236      
240-395 1   829J PAETEC ITEL, LLC 236      
240-395 2   829J PAETEC ITEL, LLC 236      
240-395 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-05-09   
240-395 4   829J PAETEC ITEL, LLC 236      
240-395 5   829J PAETEC ITEL, LLC 236      
240-395 6   624H ONVOY SPECTRUM, LLC 236   2021-11-15   
240-395 7   624H ONVOY SPECTRUM, LLC 236   2021-11-15   
240-395 8   829J PAETEC ITEL, LLC 236      
240-395 9   829J PAETEC ITEL, LLC 236      
240-396 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-396 0   624H ONVOY SPECTRUM, LLC 236   2024-12-05   
240-396 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-396 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-396 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-09-05   
240-396 4   624H ONVOY SPECTRUM, LLC 236   2024-12-05   
240-396 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-396 6   318J COMCAST IP PHONE, LLC 236   2005-07-25   
240-396 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-02-03   
240-396 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-12-16   
240-396 9   876D ONVOY, LLC - MD 236   2024-10-21   
240-400 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-400 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2011-10-06   
240-400 1   073H TELNYX LLC 236   2023-12-11   
240-400 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-400 3   939H COMMIO, LLC 236   2023-12-23   
240-400 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-04   
240-400 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-400 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-400 7   071F BANDWIDTH.COM CLEC, LLC - MD 236   2023-02-03   
240-400 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-06-01   
240-400 9   939H COMMIO, LLC 236   2023-12-23   
240-418 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-418 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-425 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-425 0   073H TELNYX LLC 236   2021-05-23   
240-425 1   624H ONVOY SPECTRUM, LLC 236   2021-05-21   
240-425 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-02   

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

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