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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
228-346 A Gulfport MS BILXMSEDX4Y  508J CENTURYLINK COMMUNICATIONS LLC 484      
228-346 0 Gulfport MS GLPTMSATX4X  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2019-01-28   
228-346 1 Gulfport MS GLPTMSATX4X  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2016-07-18   
228-346 2 Gulfport MS GLPTMSATX7X  516C AT&T CORP. 484   2016-09-16   
228-346 3 Gulfport MS BILXMSEDXNX  6581 CELLULAR SOUTH, INC. 484   2019-12-19   
228-346 4 Gulfport MS BILXMSEDXNX  6581 CELLULAR SOUTH, INC. 484   2019-12-19   
228-346 5 Gulfport MS   6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC DBA T-MOBILE USA 484   2022-02-18   
228-346 6 Gulfport MS   6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC DBA T-MOBILE USA 484   2022-02-18   
228-346 7 Gulfport MS BILXMSEDX4Y  508J CENTURYLINK COMMUNICATIONS LLC 484   2014-04-17   
228-346 8 Gulfport MS GLPTMSATX4X  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2016-07-18   
228-346 9 Gulfport MS   6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC DBA T-MOBILE USA 484   2022-02-18   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.