Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 860 [Rate centres in NPA 860] [Dial plan for NPA 860]

NXX: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
860-397 A Sharon CT HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920      
860-397 0 Sharon CT   639C ONVOY, LLC - CT 920   2020-06-21   
860-397 1 Sharon CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-06-27   
860-397 2 Sharon CT   639C ONVOY, LLC - CT 920   2015-05-15   
860-397 3 Sharon CT   639C ONVOY, LLC - CT 920   2020-06-21   
860-397 4 Sharon CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2018-06-08   
860-397 5 Sharon CT   318J COMCAST IP PHONE, LLC 920   2004-12-17   
860-397 6 Sharon CT   639C ONVOY, LLC - CT 920   2019-08-09   
860-397 7 Sharon CT   508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-07-09   
860-397 8 Sharon CT   073H TELNYX LLC 920   2018-05-09   
860-397 9 Sharon CT   639C ONVOY, LLC - CT 920   2021-03-04   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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