Local Calling Guide

Area code/prefix search

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Washington Zone 14, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-225 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-249 A UPMRMDCCDS0  9212 VERIZON MARYLAND, INC. 236      
301-262 A BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-291 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-291 0   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-291 1   5562 METROPCS, INC. 236   2016-11-10   
301-291 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2003-07-25   
301-291 3   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-291 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-291 5   071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-08-12   
301-291 6   5562 METROPCS, INC. 236   2019-07-20   
301-291 7   071F BANDWIDTH.COM CLEC, LLC - MD 236   2004-11-21   
301-291 8   5562 METROPCS, INC. 236   2017-01-18   
301-291 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-352 A BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-383 A ARTNVAARXDY  318J COMCAST IP PHONE LLC 236   2021-01-26   
301-383 0   318J COMCAST IP PHONE LLC 236   2012-11-03   
301-383 1   318J COMCAST IP PHONE LLC 236      
301-383 2   318J COMCAST IP PHONE LLC 236   2016-07-12   
301-383 3   5562 METROPCS, INC. 236   2016-09-26   
301-383 4   5562 METROPCS, INC. 236   2017-03-25   
301-383 5   5562 METROPCS, INC. 236   2016-11-25   
301-383 6   5562 METROPCS, INC. 236   2017-07-14   
301-383 7   5562 METROPCS, INC. 236   2017-11-22   
301-383 8   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-383 9   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-390 A UPMRMDCCDS0  9212 VERIZON MARYLAND, INC. 236      
301-430 A UPMRMDCCDS0  9212 VERIZON MARYLAND, INC. 236      
301-430 0   9212 VERIZON MARYLAND, INC. 236      
301-430 1   082H LOCAL ACCESS LLC - MD 236   2016-05-31   
301-430 2   9212 VERIZON MARYLAND, INC. 236      
301-430 3   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-430 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-430 5   9212 VERIZON MARYLAND, INC. 236      
301-430 6   9212 VERIZON MARYLAND, INC. 236      
301-430 7   9212 VERIZON MARYLAND, INC. 236      
301-430 8   9212 VERIZON MARYLAND, INC. 236      
301-430 9   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-464 A BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-470 A LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-470 0   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-470 1   9212 VERIZON MARYLAND, INC. 236      
301-470 2   9212 VERIZON MARYLAND, INC. 236      
301-470 3   9212 VERIZON MARYLAND, INC. 236      
301-470 4   9212 VERIZON MARYLAND, INC. 236      
301-470 5   9212 VERIZON MARYLAND, INC. 236      

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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