Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-603 A Porum OK TULSOKPP7MD  148G CROSS WIRELESS, L.L.C. 538      

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

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