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.

NPA: 959 [Rate centres in NPA 959] [Dial plan for NPA 959]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
959-256 A Hartford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
959-256 0 Hartford CT HRFRCT03SMD  939H COMMIO, LLC 920   2023-12-23   
959-256 1 Hartford CT HRFRCT03SMD  939H COMMIO, LLC 920   2023-12-23   
959-256 2 Hartford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-11-05   
959-256 3 Hartford CT HRFRCT03SMD  939H COMMIO, LLC 920   2023-12-23   
959-256 4 Hartford CT HRFRCT03SMD  939H COMMIO, LLC 920   2023-12-23   
959-256 5 Hartford CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2024-02-04   
959-256 6 Hartford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2024-01-23   
959-256 7 Hartford CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-11-17   
959-256 8 Hartford CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-11-17   
959-256 9 Hartford CT MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-11-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.