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: BILXMSATHMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-299 A Pearlington MS 7421 AT&T - LOCAL 484      
228-299 9 Pearlington MS 7421 AT&T - LOCAL 484   2019-09-02   
228-574 A Gulfport MS 7421 AT&T - LOCAL 484      
228-574 9 Gulfport MS 7421 AT&T - LOCAL 484      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.