Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 904 [Rate centres in NPA 904] [Dial plan for NPA 904]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
904-421 A Jacksonville FL JCVLFLCLYRX  829J PAETEC ITEL, LLC 45204   2024-12-18   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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