Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 607 [Rate centres in NPA 607] [Dial plan for NPA 607]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-597 A Cortland NY   829J PAETEC ITEL, LLC 136   2025-04-02   
607-597 2 Cortland NY   384C ONVOY, LLC- NY 136   2021-02-05   
607-597 3 Cortland NY   384C ONVOY, LLC- NY 136   2021-02-05   
607-597 4 Cortland NY   829J PAETEC ITEL, LLC 136      
607-597 5 Cortland NY   384C ONVOY, LLC- NY 136   2021-02-05   
607-597 6 Cortland NY   384C ONVOY, LLC- NY 136   2021-02-05   
607-597 7 Cortland NY   145J TERRA NOVA TELECOM INC. 136   2024-02-12   
607-597 8 Cortland NY   073H TELNYX LLC 136   2021-01-17   
607-597 9 Cortland NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2005-02-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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