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: 554

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-554 A Royal Oak MI BRHMMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-554 0 Royal Oak MI   9323 MICHIGAN BELL TEL CO 340      
248-554 1 Royal Oak MI   543C ONVOY, LLCV - MI 340   2011-08-10   
248-554 2 Royal Oak MI   543C ONVOY, LLCV - MI 340   2010-12-15   
248-554 3 Royal Oak MI   817J INTERACTIVE SERVICES NETWORK, INC. 340   2005-09-03   
248-554 4 Royal Oak MI   9323 MICHIGAN BELL TEL CO 340      
248-554 5 Royal Oak MI   5562 METROPCS, INC. 340   2011-09-09   
248-554 6 Royal Oak MI   9323 MICHIGAN BELL TEL CO 340      
248-554 7 Royal Oak MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2011-09-09   
248-554 8 Royal Oak MI   9323 MICHIGAN BELL TEL CO 340      
248-554 9 Royal Oak MI   9323 MICHIGAN BELL TEL CO 340      

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

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