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: HRFRCT03XOX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-336 A Darien CT 965H FRACTEL, LLC 920      
475-345 A Bridgeport CT 965H FRACTEL, LLC 920      
475-356 A Bridgeport CT 965H FRACTEL, LLC 920      
475-377 A Waterbury CT 965H FRACTEL, LLC 920      
475-455 A Ansonia-Derby CT 965H FRACTEL, LLC 920      
475-688 A Meriden CT 965H FRACTEL, LLC 920      
475-755 A Norwalk CT 965H FRACTEL, LLC 920      
475-758 A New Canaan CT 965H FRACTEL, LLC 920      
475-766 A New Haven CT 965H FRACTEL, LLC 920      
475-877 A Redding CT 965H FRACTEL, LLC 920      
475-946 A Old Greenwich CT 965H FRACTEL, LLC 920      
475-977 A Stamford CT 965H FRACTEL, LLC 920      
959-234 A Norwich CT 965H FRACTEL, LLC 920      
959-345 A Danielson CT 965H FRACTEL, LLC 920      
959-356 A Haddam CT 965H FRACTEL, LLC 920      
959-465 A Watertown CT 965H FRACTEL, LLC 920      
959-529 A Hartford CT 965H FRACTEL, LLC 920      
959-758 A Plainfield CT 965H FRACTEL, LLC 920      
959-946 A Stafford Springs CT 965H FRACTEL, LLC 920      
959-977 A Winsted CT 965H FRACTEL, LLC 920      

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

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