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: 840

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-840 A Frederick MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-840 0 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-840 1 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-840 2 Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      
240-840 3 Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      
240-840 4 Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      
240-840 5 Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      
240-840 6 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-840 7 Frederick MD FRDRMDFR9MD  5562 METROPCS, INC. 240      
240-840 8 Frederick MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-840 9 Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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