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: 748

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-748 A Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2024-02-09   
301-748 0 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-748 1 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 2 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 3 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 4 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 5 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 6 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 7 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 8 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-748 9 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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