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: 720

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-720 A Brandywine MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-720 0 Brandywine MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-720 1 Brandywine MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-720 2 Brandywine MD   5562 METROPCS, INC. 236   2019-07-11   
301-720 3 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-720 4 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-720 5 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
301-720 6 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
301-720 7 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
301-720 8 Brandywine MD   073H TELNYX LLC 236   2017-04-27   
301-720 9 Brandywine MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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