Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 228 [Rate centres in NPA 228] [Dial plan for NPA 228]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
228-256 A Gulfport MS BILXMSAT1MD  073H TELNYX LLC 484      
228-256 0 Gulfport MS   719E ONVOY, LLC - MS 484   2019-01-31   
228-256 1 Gulfport MS   073H TELNYX LLC 484   2017-02-11   
228-256 2 Gulfport MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2019-09-22   
228-256 3 Gulfport MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2019-09-22   
228-256 4 Gulfport MS   719E ONVOY, LLC - MS 484   2019-10-12   
228-256 5 Gulfport MS   719E ONVOY, LLC - MS 484   2019-10-12   
228-256 6 Gulfport MS   719E ONVOY, LLC - MS 484   2021-11-30   
228-256 7 Gulfport MS   719E ONVOY, LLC - MS 484   2021-11-30   
228-256 8 Gulfport MS   719E ONVOY, LLC - MS 484   2019-01-31   
228-256 9 Gulfport MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2018-04-12   

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

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