Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-821 A Laurel MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-821 0 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
301-821 1 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
301-821 2 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-08-07   
301-821 3 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-09-20   
301-821 4 Laurel MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-821 5 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-09-20   
301-821 6 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
301-821 7 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
301-821 8 Laurel MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236   2005-11-17   
301-821 9 Laurel MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-11-08   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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