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: 814C INTRADO COMMUNICATIONS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
404-540 3 Atlanta GA   438   2026-09-13   
404-554 2 Atlanta GA   438   2026-09-13   
404-826 5 Atlanta GA   438   2026-09-13   
943-302 5 Atlanta GA   438   2026-09-03   
943-302 6 Atlanta GA   438   2026-09-03   
943-302 7 Atlanta GA   438   2026-09-03   
943-302 8 Atlanta GA   438   2026-09-03   
943-302 9 Atlanta GA   438   2026-09-03   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.