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: 731

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-731 A Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-731 0 Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-731 1 Birmingham MI SFLDMIDNDS5  9714 GRID 4 COMMUNICATIONS, INC. - MI 340   2011-01-29   
248-731 2 Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-731 3 Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-731 4 Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-731 5 Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-731 6 Birmingham MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
248-731 7 Birmingham MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2007-09-21   
248-731 8 Birmingham MI LIVNMIUX3MD  5562 METROPCS, INC. 340   2022-09-05   
248-731 9 Birmingham MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      

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

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