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: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-826 A Detroit Zone 3 MI SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-826 0 Detroit Zone 3 MI   8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2006-11-17   
313-826 1 Detroit Zone 3 MI   8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2006-11-17   
313-826 2 Detroit Zone 3 MI   5562 METRO PCS, INC. 340   2008-02-22   
313-826 3 Detroit Zone 3 MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-826 4 Detroit Zone 3 MI   5562 METRO PCS, INC. 340   2007-02-26   
313-826 5 Detroit Zone 3 MI   5562 METRO PCS, INC. 340   2007-02-26   
313-826 6 Detroit Zone 3 MI   8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2006-10-04   
313-826 7 Detroit Zone 3 MI   8935 COMCAST PHONE OF MICHIGAN, LLC - MI 340   2006-10-04   
313-826 8 Detroit Zone 3 MI   5562 METRO PCS, INC. 340   2006-07-22   
313-826 9 Detroit Zone 3 MI   5562 METRO PCS, INC. 340   2007-02-26   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.