Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 439

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-439 A Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-439 0 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2008-08-14   
240-439 1 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2008-10-12   
240-439 2 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240   2008-09-16   
240-439 3 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2011-05-02   
240-439 4 Frederick MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2010-07-03   
240-439 5 Frederick MD FRDRMDFR9MD  5562 METROPCS, INC. 240   2010-07-16   
240-439 6 Frederick MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2010-05-09   
240-439 7 Frederick MD FRDRMDFR9MD  5562 METROPCS, INC. 240   2010-09-02   
240-439 8 Frederick MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2009-08-13   
240-439 9 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2008-10-03   

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

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