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: TULSOKTBY0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
539-228 A Grove OK 425J CSC WIRELESS, LLC 538      
539-228 0 Grove OK 425J CSC WIRELESS, LLC 538   2019-08-30   
539-228 2 Grove OK 425J CSC WIRELESS, LLC 538   2019-05-17   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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