Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 680 [Rate centres in NPA 680] [Dial plan for NPA 680]

NXX: 327

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
680-327 A Hamilton NY   7421 AT&T - LOCAL 136   2025-09-25   
680-327 8 Hamilton NY   114J EXIANT COMMUNICATIONS LLC 136   2026-05-23   
680-327 9 Hamilton NY   7421 AT&T - LOCAL 136   2025-09-25   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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