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.

Indian Head, MD

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-684 4 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-684 5 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-684 6 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-684 7 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236      
301-684 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-684 9 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-743 A INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 1 VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-743 2 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 3 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 4 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 5 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 6 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 7 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 8 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-743 9 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 A INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 0 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-744 1 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 2 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 3 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 4 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 5 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 6 INHDMDINRS0  9212 VERIZON MARYLAND, INC. 236      
301-744 7 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-744 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-744 9 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      

<< 1 2

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.