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.

Walled Lake, MI

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
248-255 A LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
248-255 0 SFLDMIMKNMD  460K FIRST COMMUNICATIONS, LLC 340   2008-07-12   
248-255 1 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-08-25   
248-255 2 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-08-25   
248-255 3 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-08-25   
248-255 4 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2007-03-19   
248-255 5 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-05-21   
248-255 6 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-05-21   
248-255 7 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-05-21   
248-255 8 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-04-12   
248-255 9 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-04-14   
248-295 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-295 0 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-295 1 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-04-14   
248-295 2 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-295 3 FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2009-10-27   
248-295 4 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-17   
248-295 6 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-17   
248-295 7 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-02-07   
248-295 8 ANARMIMNDS2  3535 ACD TELECOM, INC. - MI 340   2005-07-16   
248-295 9 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-17   
248-313 A FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-313 0 FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2005-07-24   
248-313 1 SFLDMIDC0MD  817J TELNET WORLDWIDE, INC. 340   2005-09-03   
248-313 2 SFLDMIDICA0  2550 123.NET, LLC 340   2005-09-04   
248-313 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2007-05-17   
248-313 4 DTRTMIBLX4Y  991E BANDWIDTH.COM CLEC, LLC - MI 340   2016-07-23   
248-313 5 SFLDMIDNDS5  9714 GRID 4 COMMUNICATIONS, INC. - MI 340   2006-09-21   
248-313 6 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-06-24   
248-313 7 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-11-03   
248-313 8 DTRTMIBLX4Y  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-09-11   
248-313 9 WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2007-04-27   
248-438 A SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-438 1 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-438 3 SFLDMIDICA0  2550 123.NET, LLC 340   2025-04-07   
248-438 4 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-438 5 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2003-08-20   
248-438 6 WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2003-03-18   
248-438 7   3535 ACD TELECOM, INC. - MI 340   2005-12-08   
248-438 8 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-02-10   
248-560 A FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-560 0 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-560 1 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-560 2 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-560 3 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-560 4 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-560 5 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-08-13   
248-560 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2016-07-25   
248-560 7 DTRTMIBLX4Y  991E BANDWIDTH.COM CLEC, LLC - MI 340   2011-03-27   
248-560 8 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      

1 2 3 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.