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: 772

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-772 A Detroit Zone 4 MI DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-772 0 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-772 1 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-772 2 Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-772 3 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-772 4 Detroit Zone 4 MI   961J WOW! INTERNET, CABLE AND PHONE 340      
313-772 5 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-772 6 Detroit Zone 4 MI DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-772 7 Detroit Zone 4 MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-772 8 Detroit Zone 4 MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-772 9 Detroit Zone 4 MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.