Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 959 [Rate centres in NPA 959] [Dial plan for NPA 959]

NXX: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
959-997 A Hartford CT   639C ONVOY, LLC - CT 920   2026-09-14   
959-997 0 Hartford CT   639C ONVOY, LLC - CT 920   2026-09-14   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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