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: 920

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
904-920 A Jacksonville FL   937C ONVOY, LLC - FL 45204   2026-08-21   
904-920 0 Jacksonville FL   937C ONVOY, LLC - FL 45204   2026-08-21   
904-920 1 Jacksonville FL   937C ONVOY, LLC - FL 45204   2026-08-21   
904-920 2 Jacksonville FL   937C ONVOY, LLC - FL 45204   2026-08-21   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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