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: BRPTCT01DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-248 3 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   
475-248 4 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   
475-248 5 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   
475-248 6 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   
475-248 7 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   
475-248 8 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   
475-248 9 Bridgeport CT 9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2014-08-21   

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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