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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-780 4 Washington Zone 15 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-07-12   
301-780 5 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 6 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 7 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 8 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 9 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-781 A Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-781 0 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 1 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 2 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 3 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 4 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 5 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 6 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 7 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 8 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-781 9 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-18   
301-782 A Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 0 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-782 1 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 2 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 3 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 4 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 5 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 6 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 7 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 8 Brandywine MD   829J PAETEC ITEL, LLC 236   2010-01-18   
301-782 9 Brandywine MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-783 A Cumberland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-784 A Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 0 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 1 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 2 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 3 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 4 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 5 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 6 Cumberland MD CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
301-784 7 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 8 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-784 9 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2014-08-08   
301-785 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-786 A McCoole MD CSTWMDCRDS0  9212 VERIZON MARYLAND, INC. 240      
301-786 0 McCoole MD HGTWMD530MD  073H TELNYX LLC 240   2017-08-08   
301-786 1 McCoole MD CMLDMDCH0MD  228C IDT AMERICA, CORP. - MD 240   2006-03-10   
301-786 2 McCoole MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2013-05-23   
301-786 3 McCoole MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-786 4 McCoole MD CSTWMDCRDS0  9212 VERIZON MARYLAND, INC. 240      
301-786 5 McCoole MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-786 6 McCoole MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2016-11-12   
301-786 7 McCoole MD CSTWMDCRDS0  9212 VERIZON MARYLAND, INC. 240      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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