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: 575

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-575 A Laurel MD   829J PAETEC ITEL, LLC 236   2025-04-02   
301-575 0 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 1 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 2 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 3 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 4 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
301-575 5 Laurel MD   829J PAETEC ITEL, LLC 236   2006-07-30   
301-575 6 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-08-07   
301-575 7 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-08-07   
301-575 8 Laurel MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-575 9 Laurel MD   829J PAETEC ITEL, LLC 236      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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