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: GLPTMSATX5X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-200 A Hurley MS 516C AT&T CORP. 484 2011-09-19   

Last updated: Sat, 01 Dec 2018 01:51:37 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.