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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-909 A Washington Zone 5 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-910 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-912 A Washington Zone 14 (Baltimore LATA) MD ODTNMDONDS0  9212 VERIZON MARYLAND, INC. 238      
301-913 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-914 A Oakland MD THVLMDTV0MD  676A MOUNTAIN COMMUNICATIONS, LLC DBA PROCOM - MD 240      
301-915 A Washington Zone 2 MD LNHMMDADGT0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-916 A Gaithersburg MD GMTWMDGNDS0  9212 VERIZON MARYLAND, INC. 236      
301-917 A Washington Zone 10 MD LNHMMDADGT0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-918 A Washington Zone 4 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-919 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-920 A Washington Zone 3 MD LNHMMDADGT0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-921 A Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-922 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-923 A Washington Zone 13 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-924 A Washington Zone 12 MD OLNYMDOKRP0  9212 VERIZON MARYLAND, INC. 236      
301-925 A Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-926 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-927 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-928 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-929 A Washington Zone 11 MD WHTNMDWTDS0  9212 VERIZON MARYLAND, INC. 236      
301-930 A Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-931 A Washington Zone 13 MD BTVLMDBVDS0  9212 VERIZON MARYLAND, INC. 236      
301-932 A Waldorf MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-933 A Washington Zone 11 MD WHTNMDWTDS0  9212 VERIZON MARYLAND, INC. 236      
301-934 A La Plata MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236      
301-935 A Washington Zone 13 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-936 A Hagerstown MD HGTWMD530MD  073H TELNYX LLC 240      
301-937 A Washington Zone 13 MD BTVLMDBVDS0  9212 VERIZON MARYLAND, INC. 236      
301-938 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-939 A Washington Zone 13 MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-940 A Washington Zone 4 MD LDVRMDLORP0  9212 VERIZON MARYLAND, INC. 236   2025-02-03   
301-941 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-942 A Washington Zone 11 MD WHTNMDWTDS0  9212 VERIZON MARYLAND, INC. 236      
301-943 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-944 A Gaithersburg MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-945 A Washington Zone 11 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-946 A Washington Zone 11 MD WHTNMDWTDS0  9212 VERIZON MARYLAND, INC. 236      
301-947 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-948 A Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-949 A Washington Zone 11 MD WHTNMDWTDS0  9212 VERIZON MARYLAND, INC. 236      
301-951 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-952 A Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-953 A Washington Zone 13 MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-954 A Washington Zone 4 MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 236      
301-955 A Washington Zone 4 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-956 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-957 A Laurel MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-960 A Washington Zone 3 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-961 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-962 A Washington Zone 11 MD WHTNMDWTDS0  9212 VERIZON MARYLAND, INC. 236      
301-963 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-964 A Myersville MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-965 A Washington Zone 6 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-966 A Washington Zone 12 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-967 A Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-968 A Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-969 A Brunswick MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
301-970 A Washington Zone 14 (Baltimore LATA) MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
301-971 A Washington Zone 6 MD LNHMMDADGT0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-972 A Gaithersburg MD GMTWMDGNDS0  9212 VERIZON MARYLAND, INC. 236      
301-973 A Washington Zone 14 (Baltimore LATA) MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
301-974 A Laurel MD LNHMMDADGT0  8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-975 A Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-977 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-978 A Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-979 A Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-980 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-981 A Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
301-982 A Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-983 A Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-984 A Washington Zone 11 MD RKVLMDMRDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-986 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-987 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-988 A Hagerstown MD CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
301-989 A Washington Zone 12 MD SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-990 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-991 A Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-992 A Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-993 A Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-994 A Lexington Park-Great Mills MD VYLEMDVLRS0  9212 VERIZON MARYLAND, INC. 236      
301-995 A Lexington Park-Great Mills MD PNATMDAFDS0  9212 VERIZON MARYLAND, INC. 236      
301-996 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-997 A Leonardtown MD LNTWMDLTRS0  9212 VERIZON MARYLAND, INC. 236      
301-998 A Washington Zone 11 MD RKVLMDMRDS0  9212 VERIZON MARYLAND, INC. 236      
301-999 A Hagerstown MD HGTWMDCACM8  9212 VERIZON MARYLAND, INC. 240      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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