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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
386-219 A Live Oak FL 318J COMCAST IP PHONE, LLC 45205      
386-350 A Interlachen FL 318J COMCAST IP PHONE, LLC 45204      
386-518 A Alachua FL 318J COMCAST IP PHONE, LLC 45205      
904-217 A St Johns FL 318J COMCAST IP PHONE, LLC 45204      
904-310 A Fernandina Beach FL 318J COMCAST IP PHONE, LLC 45204      
904-342 A St Johns FL 318J COMCAST IP PHONE, LLC 45204      
904-372 A Jacksonville Beach FL 318J COMCAST IP PHONE, LLC 45204      
904-373 A Ponte Vedra Beach FL 318J COMCAST IP PHONE, LLC 45204      
904-374 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-375 A Orange Park FL 318J COMCAST IP PHONE, LLC 45204      
904-379 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-397 A Macclenny FL 318J COMCAST IP PHONE, LLC 45204      
904-406 A Middleburg FL 318J COMCAST IP PHONE, LLC 45204      
904-409 A Sanderson FL 318J COMCAST IP PHONE, LLC 45204      
904-503 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-531 A Green Cove Springs FL 318J COMCAST IP PHONE, LLC 45204      
904-551 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-559 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-606 A Middleburg FL 318J COMCAST IP PHONE, LLC 45204      
904-619 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-628 A Callahan FL 318J COMCAST IP PHONE, LLC 45204      
904-647 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-683 A Jacksonville FL 318J COMCAST IP PHONE, LLC 45204      
904-748 A Maxville FL 318J COMCAST IP PHONE, LLC 45204      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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