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: OKBRILOADS3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
219-381 A Merrillville IN 7421 AT&T LOCAL 358      
224-535 A Elgin IL 7421 AT&T LOCAL 358   2005-04-21   
630-509 A Bensenville IL 7421 AT&T LOCAL 358      
630-882 A Yorkville IL 7421 AT&T LOCAL 358      
815-617 A Ottawa IL 7421 AT&T LOCAL 358      
815-710 A Morris IL 7421 AT&T LOCAL 358      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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