Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 248 [Rate centres in NPA 248] [Dial plan for NPA 248]

NXX: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-300 A Royal Oak MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-02-13   
248-300 6 Royal Oak MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-09   
248-300 7 Royal Oak MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-05-11   
248-300 8 Royal Oak MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-02-13   
248-300 9 Royal Oak MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-02-13   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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