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: 364

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-364 A Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-364 0 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-06-01   
313-364 1 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-07-27   
313-364 2 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2018-08-03   
313-364 3 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2018-08-03   
313-364 4 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2018-08-03   
313-364 5 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2018-08-03   
313-364 6 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2018-08-03   
313-364 7 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2018-08-03   
313-364 8 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-09-21   
313-364 9 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-10-19   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.