Local Calling Guide

Area code/prefix search

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

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-377 A Laurel MD ARTNVAARXDY  318J COMCAST IP PHONE LLC 236   2021-01-26   
301-377 0 Laurel MD   318J COMCAST IP PHONE LLC 236      
301-377 1 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2010-02-04   
301-377 2 Laurel MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2010-06-15   
301-377 3 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2010-05-28   
301-377 4 Laurel MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-02-19   
301-377 5 Laurel MD   9212 VERIZON MARYLAND, INC. 236   2005-11-15   
301-377 6 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2010-02-04   
301-377 7 Laurel MD   9212 VERIZON MARYLAND, INC. 236   2007-02-17   
301-377 8 Laurel MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-09-08   
301-377 9 Laurel MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2010-05-10   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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