Local Calling Guide

Area code/prefix search

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Washington Zone 4, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-918 6 LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-918 7 LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-918 8 LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-918 9 LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-927 A HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-955 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-955 0 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-955 1 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-955 2 CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2010-11-12   
301-955 3 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-955 4 CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2010-11-12   
301-955 5 CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2010-11-12   
301-955 6 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-06-16   
301-955 7 CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2010-11-12   
301-955 8 CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2010-11-12   
301-955 9 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-985 A HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 0 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 1 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 2 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-01-01   
301-985 3 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 4 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 5 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 6 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 7 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 8 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-985 9 HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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