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: HRFRCTBE2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-286 A Branford CT 073H TELNYX LLC 920      
475-286 0 Branford CT 073H TELNYX LLC 920   2021-08-14   
959-227 8 Canaan CT 073H TELNYX LLC 920   2022-04-22   
959-249 1 Canaan CT 073H TELNYX LLC 920   2023-02-27   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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