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: BRDVILBOCM1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
872-484 A Chicago Zone 03-Kildare IL 6664 SPRINT SPECTRUM L.P. 358   2011-08-14   
872-600 A Chicago Zone 03-Kildare IL 6664 SPRINT SPECTRUM L.P. 358   2011-05-09   
872-800 A Chicago Zone 03-Kildare IL 6664 SPRINT SPECTRUM L.P. 358   2011-06-16   

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Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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