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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-850 A Royal Oak MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
248-850 0 Royal Oak MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2007-01-26   
248-850 1 Royal Oak MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-05-15   
248-850 2 Royal Oak MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-05-15   
248-850 3 Royal Oak MI   543C ONVOY, LLCV - MI 340   2009-02-11   
248-850 5 Royal Oak MI   543C ONVOY, LLCV - MI 340   2008-10-16   
248-850 6 Royal Oak MI   5562 METROPCS, INC. 340   2007-04-03   
248-850 7 Royal Oak MI   318J COMCAST IP PHONE, LLC 340   2006-11-29   
248-850 8 Royal Oak MI   318J COMCAST IP PHONE, LLC 340   2006-11-29   
248-850 9 Royal Oak MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2006-04-21   

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

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