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.

OCN: 2700 CTC COMMUNICATIONS CORP. - VA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
571-351 4 Washington Zone 8 VA WASHDCMTX7X  236   2015-06-08   
571-435 8 Washington Zone 19 VA WASHDCMTX7X  236   2005-08-07   
571-451 A Washington Zone 8 VA WASHDCMTX7X  236      
571-451 1 Washington Zone 8 VA WASHDCMTX7X  236   2005-08-04   
571-458 7 Washington Zone 8 VA WASHDCMTX7X  236   2014-05-24   
703-357 A Occoquan VA WASHDCMTX7X  236      
703-357 1 Occoquan VA WASHDCMTX7X  236   2005-08-04   
703-454 3 Engleside VA WASHDCMTX7X  236   2007-02-06   
703-776 1 Washington Zone 17 VA WASHDCMTX7X  236   2006-01-20   
703-828 6 Braddock VA WASHDCMTX7X  236   2013-01-16   
703-853 A Manassas VA WASHDCMTX7X  236      
703-853 1 Manassas VA WASHDCMTX7X  236   2005-08-04   
703-877 6 Washington Zone 19 VA WASHDCMTX7X  236      
703-955 5 Herndon VA WASHDCMTX7X  236   2006-02-25   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.