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Washington Zone 3, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-455 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-455 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-457 A SLSPMDSSDSS  9212 VERIZON MARYLAND, INC. 236      
301-466 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-467 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-495 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-502 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-504 A SLSPMDSSDSS  9212 VERIZON MARYLAND, INC. 236      
301-509 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-512 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-518 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-520 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-523 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-523 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-526 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-537 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-551 A VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
301-557 A MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-557 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2014-09-12   
301-557 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-29   
301-557 9   318J COMCAST IP PHONE, LLC 236   2013-09-08   
301-561 A VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
301-562 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-563 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-563 0   9212 VERIZON MARYLAND, INC. 236      
301-563 1   9212 VERIZON MARYLAND, INC. 236      
301-563 2   9212 VERIZON MARYLAND, INC. 236      
301-563 3   9212 VERIZON MARYLAND, INC. 236      
301-563 4   9212 VERIZON MARYLAND, INC. 236      
301-563 5   9212 VERIZON MARYLAND, INC. 236      
301-563 6   9212 VERIZON MARYLAND, INC. 236      
301-563 7   9212 VERIZON MARYLAND, INC. 236      
301-563 8   9212 VERIZON MARYLAND, INC. 236      
301-563 9   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-12-04   
301-565 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-572 A BTVLMDBVDS0  9212 VERIZON MARYLAND, INC. 236      
301-576 A   829J PAETEC ITEL, LLC 236   2025-04-02   
301-578 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 0   9212 VERIZON MARYLAND, INC. 236      
301-578 1   9212 VERIZON MARYLAND, INC. 236      
301-578 2   071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
301-578 3   964H BARR TELL USA, INC. 236   2018-05-08   
301-578 4   9212 VERIZON MARYLAND, INC. 236      
301-578 5   071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
301-578 6   071F BANDWIDTH.COM CLEC, LLC - MD 236   2018-07-19   
301-578 7   508J CENTURYLINK COMMUNICATIONS, LLC 236   2018-03-12   
301-578 8   9212 VERIZON MARYLAND, INC. 236      
301-578 9   9212 VERIZON MARYLAND, INC. 236      
301-580 A WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-585 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-586 A BTVLMDBVDS0  9212 VERIZON MARYLAND, INC. 236      
301-586 0   9212 VERIZON MARYLAND, INC. 236      
301-586 1   9212 VERIZON MARYLAND, INC. 236      
301-586 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-11-21   
301-586 3   9212 VERIZON MARYLAND, INC. 236      
301-586 4   9212 VERIZON MARYLAND, INC. 236      
301-586 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-11-21   
301-586 6   9212 VERIZON MARYLAND, INC. 236      
301-586 7   5562 METROPCS, INC. 236   2007-11-21   
301-586 8   9212 VERIZON MARYLAND, INC. 236      
301-586 9   9212 VERIZON MARYLAND, INC. 236      
301-587 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-588 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-589 A SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-592 A SLSPMDNWDS0  9212 VERIZON MARYLAND, INC. 236      
301-592 0   9212 VERIZON MARYLAND, INC. 236      
301-592 1   9212 VERIZON MARYLAND, INC. 236      
301-592 2   9212 VERIZON MARYLAND, INC. 236      
301-592 3   9212 VERIZON MARYLAND, INC. 236      
301-592 4   9212 VERIZON MARYLAND, INC. 236      

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

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