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: 463

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
248-463 A Birmingham MI TROYMISMDS0  9323 MICHIGAN BELL TEL CO 340      
248-463 0 Birmingham MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2011-08-21   
248-463 4 Birmingham MI TROYMISMDS0  9323 MICHIGAN BELL TEL CO 340      
248-463 6 Birmingham MI TROYMISMDS0  9323 MICHIGAN BELL TEL CO 340      
248-463 8 Birmingham MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2013-11-05   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.