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: 910

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-910 A Frederick MD CMLDMDCMZMD  566J RADIANTIQ LLC 240      
240-910 0 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2021-06-05   
240-910 1 Frederick MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2021-07-01   
240-910 2 Frederick MD HGTWMD539MD  939H COMMIO, LLC 240   2021-07-17   
240-910 3 Frederick MD HGTWMD539MD  939H COMMIO, LLC 240   2021-07-17   
240-910 4 Frederick MD HGTWMD539MD  939H COMMIO, LLC 240   2021-07-17   
240-910 5 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2022-03-16   
240-910 6 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2022-03-16   
240-910 7 Frederick MD FRDRMDFR9MD  5562 METROPCS, INC. 240   2022-12-02   
240-910 8 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2021-07-08   
240-910 9 Frederick MD CMLDMDCMZMD  566J RADIANTIQ LLC 240   2021-04-30   

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

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