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.

Brandywine, MD

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-720 8 WASHDC127MD  073H TELNYX LLC 236   2017-04-27   
301-720 9 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-782 A BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 0   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-782 1 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 2 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 3 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 4 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 5 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 6 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 7 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-782 8   829J PAETEC ITEL, LLC 236   2010-01-18   
301-782 9 BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      

<< 1 2

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.