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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
301-281 A Washington Zone 6 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-281 0 Washington Zone 6 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-281 1 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-04-13   
301-281 2 Washington Zone 6 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-281 3 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-07-14   
301-281 4 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-07   
301-281 5 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-09-19   
301-281 6 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-07   
301-281 7 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-09-19   
301-281 8 Washington Zone 6 MD   829J PAETEC ITEL, LLC 236   2004-03-27   
301-281 9 Washington Zone 6 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-282 A Washington Zone 12 MD FALDMDFLRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 A Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 0 Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 1 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-07-14   
301-283 2 Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 3 Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 4 Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 5 Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 6 Washington Zone 6 MD BRRDMDBRRS0  9212 VERIZON MARYLAND, INC. 236      
301-283 7 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
301-283 8 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-10-12   
301-283 9 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
301-284 A Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 0 Washington Zone 10 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-05-30   
301-284 1 Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 2 Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 3 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-01-29   
301-284 4 Washington Zone 10 MD   829J PAETEC ITEL, LLC 236   2013-03-12   
301-284 5 Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 6 Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 7 Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-284 8 Washington Zone 10 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2004-11-21   
301-284 9 Washington Zone 10 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-285 A Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-286 A Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-287 A Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-287 0 Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-287 1 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-24   
301-287 2 Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-287 3 Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-287 4 Washington Zone 11 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-12-08   
301-287 5 Washington Zone 11 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-12-08   
301-287 6 Washington Zone 11 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-12-08   
301-287 7 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
301-287 8 Washington Zone 11 MD   829J PAETEC ITEL, LLC 236   2004-03-27   
301-287 9 Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-288 A Washington Zone 12 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-288 0 Washington Zone 12 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-288 1 Washington Zone 12 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-02-22   

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Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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