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Gaithersburg, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-252 6 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-03-18   
240-252 7 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-03-18   
240-252 8 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-09-18   
240-252 9 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-03-03   
240-261 A VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-261 0 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-25   
240-261 1 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-25   
240-261 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-25   
240-261 3 BTVLMD12CMA  5562 METROPCS, INC. 236   2016-03-26   
240-261 4 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-04-25   
240-261 5 VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-05-18   
240-261 6 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-08-12   
240-261 7 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2016-09-19   
240-261 8 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2018-07-09   
240-261 9   515J IP HORIZON LLC 236   2016-05-31   
240-306 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-306 0 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-306 1 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-306 2 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-306 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-306 4 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2022-11-18   
240-306 5 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2017-09-19   
240-306 6 BTVLMD12CMA  5562 METROPCS, INC. 236   2018-07-24   
240-306 7 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-10-22   
240-306 8 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-10-22   
240-306 9 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-327 A CHCHMDBEPS0  2593 CORE COMMUNICATIONS, INC.- MD 236   2024-01-16   
240-361 A WASHDCSW01Z  829J PAETEC ITEL, LLC 236   2025-04-02   
240-361 0 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 1 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 2 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 3 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 4 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 5 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 6 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-361 7 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-01-28   
240-361 8 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-01-28   
240-361 9 WASHDCSW01Z  829J PAETEC ITEL, LLC 236      
240-364 A WASHDCSWXZZ  829J PAETEC ITEL, LLC 236   2025-04-02   
240-364 0 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 1 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 2 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 3 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 4 CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2007-10-17   
240-364 5 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 6 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 7 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 8 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-364 9 WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
240-372 A BTVLMD12CMA  5562 METROPCS, INC. 236      

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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