Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-242 A Brandywine MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-242 0 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-242 1 Brandywine MD BTVLMD127MD  5562 METROPCS, INC. 236      
301-242 2 Brandywine MD CHCHMDBE1MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
301-242 3 Brandywine MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-242 4 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-242 5 Brandywine MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
301-242 6 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-242 7 Brandywine MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
301-242 8 Brandywine MD   515J IP HORIZON LLC 236      
301-242 9 Brandywine MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.