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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-979 0 Cumberland MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-979 1 Cumberland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-07-02   
240-979 2 Cumberland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-08-19   
240-979 3 Cumberland MD FRDRMDLH7MD  281E YMAX COMMUNICATIONS CORP. - MD 240   2009-03-13   
240-979 4 Cumberland MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2005-06-10   
240-979 5 Cumberland MD FRDRMDLH7MD  281E YMAX COMMUNICATIONS CORP. - MD 240   2009-03-13   
240-979 6 Cumberland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2011-06-02   
240-979 7 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-11-28   
240-979 8 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-11-28   
240-979 9 Cumberland MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-980 A Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-980 0 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-01-08   
240-980 1 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-03-01   
240-980 2 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-03-01   
240-980 3 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-06-17   
240-980 4 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-06-17   
240-980 5 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-08-10   
240-980 6 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-08-10   
240-980 7 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-08-10   
240-980 8 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-03-01   
240-980 9 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-04-06   
240-981 A Gaithersburg MD WASHDC093MD  732J NUSO, LLC 236      
240-981 0 Gaithersburg MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-981 1 Gaithersburg MD WASHDC093MD  732J NUSO, LLC 236   2023-04-03   
240-981 2 Gaithersburg MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-981 3 Gaithersburg MD WASHDC12NMD  490J BOOST SUBSCRIBERCO L.L.C. 236   2024-01-21   
240-981 4 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
240-981 5 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
240-981 6 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
240-981 7 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
240-981 8 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
240-981 9 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
240-982 A Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-982 0 Gaithersburg MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-03-22   
240-982 1 Gaithersburg MD SLSPMD913MD  939H COMMIO, LLC 236   2023-12-21   
240-982 2 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-03-20   
240-982 3 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-03-20   
240-982 4 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-03-20   
240-982 5 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-05-18   
240-982 6 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-05-18   
240-982 7 Gaithersburg MD SLSPMD913MD  939H COMMIO, LLC 236   2023-12-21   
240-982 8 Gaithersburg MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-07-06   
240-982 9 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-07-06   
240-983 A Hagerstown MD CMLDMD304MD  732J NUSO, LLC 240      
240-983 0 Hagerstown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2025-06-04   
240-983 1 Hagerstown MD CMLDMD304MD  732J NUSO, LLC 240   2023-04-03   
240-983 2 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2023-04-20   
240-983 3 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2023-04-20   
240-983 4 Hagerstown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240   2024-12-05   
240-983 5 Hagerstown MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2024-11-21   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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