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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-255 A Ithaca NY SYRCNYSWDS0  7140 TC SYSTEMS, INC. - NY 136      

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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