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.

NPA: 228 [Rate centres in NPA 228] [Dial plan for NPA 228]

NXX: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
228-300 A Ocean Springs MS BILXMSEDXJX  719E ONVOY, LLC - MS 484      
228-300 0 Ocean Springs MS   459H AIRUS, INC. - MS 484   2019-01-06   
228-300 1 Ocean Springs MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2020-01-11   
228-300 2 Ocean Springs MS   719E ONVOY, LLC - MS 484   2018-10-01   
228-300 3 Ocean Springs MS   719E ONVOY, LLC - MS 484   2018-06-18   
228-300 4 Ocean Springs MS   719E ONVOY, LLC - MS 484   2018-10-01   
228-300 5 Ocean Springs MS   719E ONVOY, LLC - MS 484   2019-10-30   
228-300 6 Ocean Springs MS   719E ONVOY, LLC - MS 484   2019-10-30   
228-300 7 Ocean Springs MS   719E ONVOY, LLC - MS 484   2020-07-03   
228-300 8 Ocean Springs MS   719E ONVOY, LLC - MS 484   2019-01-31   
228-300 9 Ocean Springs MS   719E ONVOY, LLC - MS 484   2019-01-31   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.