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.

Troy, MI

1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
248-244 A TROYMISMDS0  9323 MICHIGAN BELL TEL CO 340      
248-247 A SFLDMIDICA0  2550 123.NET, LLC 340      
248-247 0   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2011-05-16   
248-247 1   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-17   
248-247 2   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-17   
248-247 3   2550 123.NET, LLC 340   2006-12-03   
248-247 4   5562 METROPCS, INC. 340   2007-04-06   
248-247 5   543C ONVOY, LLCV - MI 340   2007-05-28   
248-247 6   543C ONVOY, LLCV - MI 340   2007-05-28   
248-247 7   543C ONVOY, LLCV - MI 340   2007-05-18   
248-247 8   543C ONVOY, LLCV - MI 340   2007-05-28   
248-247 9   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-02-17   
248-250 A WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
248-250 0   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-03-01   
248-250 1   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-03-01   
248-250 2   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-03-19   
248-250 3   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-04-02   
248-250 4   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2003-05-06   
248-250 5   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2004-12-28   
248-250 6   961J WOW! INTERNET, CABLE AND PHONE 340   2007-08-02   
248-250 7   829J PAETEC ITEL, LLC 340   2005-01-16   
248-250 8   543C ONVOY, LLCV - MI 340   2007-05-28   
248-250 9   318J COMCAST IP PHONE, LLC 340      
248-251 A DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
248-251 0   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-05-19   
248-251 1   046L CLEAR RATE COMMUNICATIONS, LLC 340   2008-07-12   
248-251 2   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2008-09-15   
248-251 3   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-04-06   
248-251 4   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-04-06   
248-251 5   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-04-06   
248-251 6   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-04-06   
248-251 7   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-04-06   
248-251 8   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2011-02-06   
248-251 9   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2008-04-06   
248-269 A TROYMISMDS0  9323 MICHIGAN BELL TEL CO 340      
248-269 0   9323 MICHIGAN BELL TEL CO 340      
248-269 1   9323 MICHIGAN BELL TEL CO 340      
248-269 2   9323 MICHIGAN BELL TEL CO 340      
248-269 3   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2009-05-06   
248-269 4   9323 MICHIGAN BELL TEL CO 340      
248-269 5   9323 MICHIGAN BELL TEL CO 340      
248-269 6   9323 MICHIGAN BELL TEL CO 340      
248-269 7   9323 MICHIGAN BELL TEL CO 340      
248-269 8   9323 MICHIGAN BELL TEL CO 340      
248-269 9   9323 MICHIGAN BELL TEL CO 340      
248-273 A TROYMISMDS0  9323 MICHIGAN BELL TEL CO 340      
248-275 A SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-275 0   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-01-08   
248-275 1   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-01-08   
248-275 2   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-01-08   

1 2 3 4 5 6 7 8 9 10 11 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.