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: BILXMSMADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-444 A Biloxi MS 806K RGTN USA, INC. 484   2025-11-14   
228-444 0 Biloxi MS 806K RGTN USA, INC. 484   2025-11-14   
228-444 4 Biloxi MS 806K RGTN USA, INC. 484   2025-11-14   
228-444 7 Biloxi MS 806K RGTN USA, INC. 484   2025-11-14   
228-444 8 Biloxi MS 806K RGTN USA, INC. 484   2025-11-14   
228-587 A Pass Christian MS 806K RGTN USA, INC. 484   2025-11-17   
228-587 0 Pass Christian MS 806K RGTN USA, INC. 484   2025-11-17   
228-587 2 Pass Christian MS 806K RGTN USA, INC. 484   2025-11-17   
228-587 7 Pass Christian MS 806K RGTN USA, INC. 484   2025-11-17   
228-587 8 Pass Christian MS 806K RGTN USA, INC. 484   2025-11-17   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.