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: 464

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-464 A Detroit Zone 6 MI SFLDMITO6MD  114J EXIANT COMMUNICATIONS LLC 340      
313-464 0 Detroit Zone 6 MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2020-04-19   
313-464 1 Detroit Zone 6 MI SFLDMITO6MD  114J EXIANT COMMUNICATIONS LLC 340   2019-11-07   
313-464 2 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2020-06-06   
313-464 3 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2020-06-06   
313-464 4 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2020-06-06   
313-464 5 Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2020-04-18   
313-464 7 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2020-06-06   
313-464 8 Detroit Zone 6 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2020-02-24   
313-464 9 Detroit Zone 6 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2020-02-24   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.