Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 248 [Rate centres in NPA 248] [Dial plan for NPA 248]

NXX: 236

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-236 A Oxford MI OXFRMIOXDS0  9323 MICHIGAN BELL TEL CO 340      
248-236 0 Oxford MI   9323 MICHIGAN BELL TEL CO 340      
248-236 1 Oxford MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-05-15   
248-236 2 Oxford MI   9323 MICHIGAN BELL TEL CO 340      
248-236 3 Oxford MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 340   2009-11-14   
248-236 4 Oxford MI   9323 MICHIGAN BELL TEL CO 340      
248-236 5 Oxford MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2003-08-20   
248-236 6 Oxford MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2012-02-24   
248-236 7 Oxford MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-02-18   
248-236 8 Oxford MI   9323 MICHIGAN BELL TEL CO 340      
248-236 9 Oxford MI   9323 MICHIGAN BELL TEL CO 340      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.