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
313-627 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-627 0 Detroit Zone 5 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-627 1 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 2 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 3 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 4 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 5 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 6 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 7 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 8 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   
313-627 9 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-06-09   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.