Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

NXX: 792

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-792 A Gervais OR GRVSORXXDS0  2373 GERVAIS TEL. CO. 672      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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