Local Calling Guide

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Washington Zone 14, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
227-218 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
227-218 0   876D ONVOY, LLC - MD 236   2024-02-19   
227-218 1   876D ONVOY, LLC - MD 236   2024-02-19   
227-218 2   876D ONVOY, LLC - MD 236   2024-02-19   
227-218 3   876D ONVOY, LLC - MD 236   2024-02-19   
227-218 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-05-16   
227-218 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-05-16   
227-218 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-12-03   
227-218 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-12-03   
227-218 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-12-03   
227-238 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-06-20   
227-238 0   876D ONVOY, LLC - MD 236   2024-07-12   
227-238 1   876D ONVOY, LLC - MD 236   2024-07-12   
227-238 2   876D ONVOY, LLC - MD 236   2024-07-12   
227-238 7   876D ONVOY, LLC - MD 236   2024-11-04   
227-238 8   071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-11-02   
227-238 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-06-20   
227-257 A VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-12-05   
227-257 0   876D ONVOY, LLC - MD 236   2024-12-05   
227-257 1   876D ONVOY, LLC - MD 236   2024-12-14   
227-257 2   876D ONVOY, LLC - MD 236   2025-04-06   
227-257 3   876D ONVOY, LLC - MD 236   2025-05-10   
227-257 4   876D ONVOY, LLC - MD 236   2025-11-28   
227-257 8   876D ONVOY, LLC - MD 236   2025-10-12   
227-257 9   876D ONVOY, LLC - MD 236   2025-09-06   
240-206 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-206 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-206 1   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-04-18   
240-206 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-206 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
240-206 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
240-206 5   071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-09-13   
240-206 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-15   
240-206 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2008-10-01   
240-206 8   318J COMCAST IP PHONE, LLC 236   2007-11-01   
240-206 9   318J COMCAST IP PHONE, LLC 236   2006-03-14   
240-232 A MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-232 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-232 1   073H TELNYX LLC 236   2021-07-29   
240-232 2   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-13   
240-232 3   624H ONVOY SPECTRUM, LLC 236   2021-10-10   
240-232 4   876D ONVOY, LLC - MD 236   2021-09-24   
240-232 5   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-17   
240-232 6   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-02-26   
240-232 7   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
240-232 8   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-06-06   
240-232 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-10-10   
240-245 A LNHMMDADGT0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-245 0   071F BANDWIDTH.COM CLEC, LLC - MD 236   2008-12-13   
240-245 1   829J PAETEC ITEL, LLC 236   2006-01-14   

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

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