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: JHCYTNXC9MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
276-221 A Mouth of Wilson VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-250 A Rural Retreat VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-271 A Independence VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-521 A Chilhowie VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-522 A Ceres VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-601 A Galax VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-663 A Rural Retreat VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-664 A Cana VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
276-821 A Bristol VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 956      
423-207 A Midway (Washington) TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-212 A Blountville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-217 A Bristol TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-218 A Johnson City TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-278 A Greeneville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-297 A Elizabethton TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-482 A Blountville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-484 A Bristol TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-525 A Greeneville TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-722 A Johnson City TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-723 A Kingsport TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-793 A Bristol TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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