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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-428 A Cortland NY   829J PAETEC ITEL, LLC 136   2025-04-02   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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