Local Calling Guide

Area code/prefix search

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NPA: 904 [Rate centres in NPA 904] [Dial plan for NPA 904]

NXX: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
904-283 A St Johns FL JCVLFLCLDS4  6630 USA MOBILITY WIRELESS, INC. 45204      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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