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: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-383 A Manassas VA WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
571-383 0 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-01   
571-383 1 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-01   
571-383 2 Manassas VA   8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2011-12-25   
571-383 3 Manassas VA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2011-10-06   
571-383 4 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-04-12   
571-383 5 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-04-12   
571-383 6 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-04-12   
571-383 7 Manassas VA   6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2012-06-22   
571-383 8 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-01   
571-383 9 Manassas VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-01   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.