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

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-963 A Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-964 A Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
240-965 A Washington Zone 13 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-966 A Washington Zone 16 MD ARTNVAARXJY  516J TON80 COMMUNICATIONS, LLC 236   2024-01-31   
240-967 A Cumberland MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-968 A Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-969 A Walkersville MD HGTWMD539MD  939H COMMIO, LLC 240      
240-970 A Washington Zone 12 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-971 A Frederick MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      
240-972 A Laurel (Baltimore LATA) MD BLTMMDSN3MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238      
240-973 A Washington Zone 12 MD BTVLMD12CMA  5562 METROPCS, INC. 236      
240-974 A Washington Zone 10 MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-975 A Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-977 A Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-978 A Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-979 A Cumberland MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-980 A Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-981 A Gaithersburg MD WASHDC093MD  732J NUSO, LLC 236      
240-982 A Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-983 A Hagerstown MD CMLDMD304MD  732J NUSO, LLC 240      
240-984 A New Market MD FRDRMDFRXAX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 240      
240-985 A Williamsport MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      
240-986 A Nanjemoy MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-987 A Washington Zone 10 MD BTVLMD18G00  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-988 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-989 A Myersville MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-990 A Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-991 A Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-992 A Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-993 A Indian Head MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-994 A Washington Zone 10 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-995 A Flintstone MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-996 A Brunswick MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-997 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-998 A Hancock MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      

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

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