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: HRFRCT0379Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
959-949 4 Jewett City CT 199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-09-20   
959-977 1 Winsted CT 199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-09-20   
959-977 4 Winsted CT 199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-12-23   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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