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.

Switch: WASHDCTTDS0

<< 1 2 3 4 5 6 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-458 2 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-458 4 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-539 A La Plata MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-539 0 La Plata MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 A Washington Zone 5 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 1 Washington Zone 5 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 2 Washington Zone 5 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 5 Washington Zone 5 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-542 A Waldorf MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-542 0 Waldorf MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 A Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 1 Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 2 Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 3 Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 4 Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 5 Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-543 6 Laurel MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-556 A Gaithersburg MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-556 0 Gaithersburg MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-556 1 Gaithersburg MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-556 2 Gaithersburg MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-556 4 Gaithersburg MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-556 9 Gaithersburg MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 A Washington Zone 13 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 0 Washington Zone 13 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 1 Washington Zone 13 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 2 Washington Zone 13 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 3 Washington Zone 13 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 4 Washington Zone 13 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 A Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 0 Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 1 Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 2 Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 3 Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 4 Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 5 Washington Zone 3 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-634 A Washington Zone 2 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-658 A Ashton MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-658 9 Ashton MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-666 A Washington Zone 14 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-666 3 Washington Zone 14 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-679 A Washington Zone 12 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-679 4 Washington Zone 12 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-683 A Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-683 0 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-683 1 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-683 2 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-683 3 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-683 6 Washington Zone 4 MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-684 A Indian Head MD 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      

<< 1 2 3 4 5 6 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.