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: PNCYFLMADS4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
850-854 A Havana FL 213H VOICE STREAM NETWORK, INC. - FL 45009      
850-854 0 Havana FL 213H VOICE STREAM NETWORK, INC. - FL 45009   2014-01-05   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.