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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
248-245 A Holly MI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-233 A Plymouth MI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-730 A Ann Arbor MI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-813 A Flint MI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      

Last updated: Wed, 10 Apr 2019 01:22:05 UTC

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