Local Calling Guide

Area code/prefix search

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NPA: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-374 A Tryon OK TRYNOKXADS0  1977 CENTRAL OKLAHOMA TELEPHONE CO., L.L.C. 538      

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

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