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: MMPHTNMA81Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
662-548 A Memphis MS 516C AT&T CORP. 468      
662-642 A Michigan City MS 516C AT&T CORP. 468      
731-236 A Grand Junction TN 516C AT&T CORP. 468      
731-462 A Medina TN 516C AT&T CORP. 468      
731-982 A Selmer TN 516C AT&T CORP. 468      
901-235 A Somerville TN 516C AT&T CORP. 468      
901-236 A Memphis TN 516C AT&T CORP. 468      
901-249 A Memphis TN 516C AT&T CORP. 468      
901-443 A Memphis TN 516C AT&T CORP. 468      
901-567 A Memphis TN 516C AT&T CORP. 468      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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