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.

NPA: 352 [Rate centres in NPA 352] [Dial plan for NPA 352]

NXX: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
352-668 A San Antonio FL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 45403      
352-668 1 San Antonio FL   937C ONVOY, LLC - FL 45403   2016-04-11   
352-668 2 San Antonio FL   937C ONVOY, LLC - FL 45403   2016-04-11   
352-668 3 San Antonio FL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 45403   2004-07-05   
352-668 4 San Antonio FL   045L BHN IP ENABLED SERVICES, LLC 45403   2007-04-14   
352-668 5 San Antonio FL   829J PAETEC ITEL, LLC 45403   2007-12-28   
352-668 6 San Antonio FL   829J PAETEC ITEL, LLC 45403   2005-06-16   
352-668 8 San Antonio FL   045L BHN IP ENABLED SERVICES, LLC 45403   2013-05-25   
352-668 9 San Antonio FL   937C ONVOY, LLC - FL 45403   2019-04-15   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.