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.

Switch: MMPHTNMAYEX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
901-456 A Memphis TN 114J EXIANT COMMUNICATIONS LLC 468      
901-456 1 Memphis TN 114J EXIANT COMMUNICATIONS LLC 468   2019-10-24   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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