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: 227

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
228-227 A Biloxi MS BILXMSMR5MD  732J NUSO, LLC 484      
228-227 0 Biloxi MS BILXMSEDXOY  624H ONVOY SPECTRUM, LLC 484   2023-08-10   
228-227 1 Biloxi MS BILXMSMR5MD  732J NUSO, LLC 484   2023-05-06   
228-227 2 Biloxi MS BILXMSEDXOY  624H ONVOY SPECTRUM, LLC 484   2023-08-10   
228-227 3 Biloxi MS BILXMSEDXOY  624H ONVOY SPECTRUM, LLC 484   2023-08-10   
228-227 4 Biloxi MS BILXMSEDXJX  719E ONVOY, LLC - MS 484   2023-09-08   
228-227 5 Biloxi MS BILXMSEDXJX  719E ONVOY, LLC - MS 484   2023-09-08   
228-227 6 Biloxi MS GLPTMSATX4X  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2023-08-26   
228-227 7 Biloxi MS GLPTMSATX4X  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2023-08-26   
228-227 8 Biloxi MS BILXMSEDXOY  624H ONVOY SPECTRUM, LLC 484   2023-08-10   
228-227 9 Biloxi MS BILXMSEDXOY  624H ONVOY SPECTRUM, LLC 484   2023-08-10   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.