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: BILXMSED0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA Eff date Disc date
228-233 A Biloxi MS 3099 US LEC OF TENNESSEE INC. - MS 484    
228-236 A Gulfport MS 3099 US LEC OF TENNESSEE INC. - MS 484    

Last updated: Thu, 19 Jul 2018 01:19:47 UTC

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