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: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
228-306 A Biloxi MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2025-06-20   
228-306 5 Biloxi MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2025-06-20   
228-306 6 Biloxi MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2025-06-20   
228-306 7 Biloxi MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2025-06-20   
228-306 8 Biloxi MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2025-06-20   
228-306 9 Biloxi MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 484   2025-06-20   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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