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
203-390 A New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-390 2 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-390 3 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-390 4 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-390 6 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-658 A Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-658 0 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-658 1 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-658 9 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-666 3 Bridgeport CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-690 3 Bridgeport CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-701 5 Milford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-703 6 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-703 7 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-793 8 Wallingford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-833 5 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-833 6 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-833 7 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-833 8 New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
475-210 2 Bridgeport CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
475-230 A New Haven CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
475-292 1 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
475-329 6 Danbury CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
475-619 A Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
475-619 6 Stamford CT 7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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