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: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-529 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
240-529 0 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
240-529 1 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
240-529 2 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-01-09   
240-529 3 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-06-13   
240-529 4 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-06-13   
240-529 5 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-11-07   
240-529 6 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-01-06   
240-529 7 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-02-04   
240-529 8 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-02-05   
240-529 9 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2006-07-02   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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