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: 677

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-677 A Royal Oak MI DTRTMIBADS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
248-677 0 Royal Oak MI   318J COMCAST IP PHONE, LLC 340   2011-11-07   
248-677 1 Royal Oak MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
248-677 2 Royal Oak MI   543C ONVOY, LLCV - MI 340   2009-02-11   
248-677 3 Royal Oak MI   516C AT&T CORP. 340   2006-07-07   
248-677 4 Royal Oak MI   516C AT&T CORP. 340   2011-05-13   
248-677 5 Royal Oak MI   543C ONVOY, LLCV - MI 340   2008-10-16   
248-677 6 Royal Oak MI   543C ONVOY, LLCV - MI 340   2008-10-16   
248-677 7 Royal Oak MI   829J PAETEC ITEL, LLC 340   2006-12-02   
248-677 8 Royal Oak MI   543C ONVOY, LLCV - MI 340   2009-02-11   
248-677 9 Royal Oak MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      

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

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