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: 248 [Rate centres in NPA 248] [Dial plan for NPA 248]

NXX: 784

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-784 A Southfield MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 0 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 1 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 2 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 3 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 4 Southfield MI   145J TERRA NOVA TELECOM INC. 340   2025-11-25   
248-784 5 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 6 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 7 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 8 Southfield MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-784 9 Southfield MI   321J HD CARRIER LLC 340   2026-03-27   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.