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Washington Zone 10, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-201 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-21   
301-201 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-01-08   
301-201 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-01-08   
301-201 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-01-08   
301-201 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-01-08   
301-201 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-09   
301-201 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-07   
301-201 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-07   
301-212 A GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-212 0   5562 METROPCS, INC. 236   2013-06-16   
301-212 1   9212 VERIZON MARYLAND, INC. 236      
301-212 2   9212 VERIZON MARYLAND, INC. 236      
301-212 3   9212 VERIZON MARYLAND, INC. 236      
301-212 4   9212 VERIZON MARYLAND, INC. 236      
301-212 5   9212 VERIZON MARYLAND, INC. 236      
301-212 6   9212 VERIZON MARYLAND, INC. 236      
301-212 7   9212 VERIZON MARYLAND, INC. 236      
301-212 8   9212 VERIZON MARYLAND, INC. 236      
301-212 9   9212 VERIZON MARYLAND, INC. 236      
301-217 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-240 A GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-240 0   9212 VERIZON MARYLAND, INC. 236      
301-240 1   9212 VERIZON MARYLAND, INC. 236      
301-240 2   9212 VERIZON MARYLAND, INC. 236      
301-240 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-240 4   9212 VERIZON MARYLAND, INC. 236      
301-240 5   9212 VERIZON MARYLAND, INC. 236      
301-240 6   9212 VERIZON MARYLAND, INC. 236      
301-240 7   9212 VERIZON MARYLAND, INC. 236      
301-240 8   9212 VERIZON MARYLAND, INC. 236      
301-240 9   9212 VERIZON MARYLAND, INC. 236      
301-251 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-258 A GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-279 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-284 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 0   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-05-30   
301-284 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 3   876D ONVOY, LLC - MD 236   2016-01-29   
301-284 4   829J PAETEC ITEL, LLC 236   2013-03-12   
301-284 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 8   071F BANDWIDTH.COM CLEC, LLC - MD 236   2004-11-21   
301-284 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-294 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-296 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 6   318J COMCAST IP PHONE, LLC 236   2013-08-01   
301-296 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-296 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-299 A BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-309 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-309 0   9212 VERIZON MARYLAND, INC. 236      
301-309 1   9212 VERIZON MARYLAND, INC. 236      
301-309 2   9212 VERIZON MARYLAND, INC. 236      
301-309 3   9212 VERIZON MARYLAND, INC. 236      
301-309 4   9212 VERIZON MARYLAND, INC. 236      
301-309 5   9212 VERIZON MARYLAND, INC. 236      
301-309 6   9212 VERIZON MARYLAND, INC. 236      
301-309 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2021-08-20   
301-309 8   9212 VERIZON MARYLAND, INC. 236      
301-309 9   9212 VERIZON MARYLAND, INC. 236      
301-315 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-339 A   829J PAETEC ITEL, LLC 236   2025-04-02   
301-339 0   829J PAETEC ITEL, LLC 236      
301-339 1   829J PAETEC ITEL, LLC 236      
301-339 2   829J PAETEC ITEL, LLC 236      
301-339 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-12-15   
301-339 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-30   
301-339 5   829J PAETEC ITEL, LLC 236      
301-339 6   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236   2012-03-02   
301-339 7   829J PAETEC ITEL, LLC 236   2006-12-21   
301-339 8   318J COMCAST IP PHONE, LLC 236   2012-12-01   
301-339 9   829J PAETEC ITEL, LLC 236      
301-340 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-353 A GMTWMDGNDS0  9212 VERIZON MARYLAND, INC. 236      
301-354 A WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 6   508J CENTURYLINK COMMUNICATIONS, LLC 236   2013-10-01   
301-354 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-398 A RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-398 0   9212 VERIZON MARYLAND, INC. 236   2003-11-09   
301-398 1   9212 VERIZON MARYLAND, INC. 236   2003-11-09   
301-398 2   9212 VERIZON MARYLAND, INC. 236   2003-11-09   
301-398 3   9212 VERIZON MARYLAND, INC. 236   2003-11-09   
301-398 4   9212 VERIZON MARYLAND, INC. 236   2003-11-09   

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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