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.
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NPA: 214 [Rate centres in NPA 214] [Dial plan for NPA 214]

Region: TX

OCN: 515J IP HORIZON LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
214-200 4 Dallas TX   552   2016-03-28   
214-275 9 Dallas TX   552   2016-01-04   
214-308 7 Frisco TX   552   2015-03-31   
214-433 8 Waxahachie TX   552   2017-12-15   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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