Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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South Amboy, NJ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
848-378 1 NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2024-10-04   
848-378 2 RCPKNJ02GT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2024-12-12   
848-378 3   637C ONVOY, LLC - NJ 224   2025-04-13   
848-378 4   637C ONVOY, LLC - NJ 224   2025-10-12   
848-378 5   637C ONVOY, LLC - NJ 224   2025-11-28   
848-378 7 RCPKNJ02GT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2024-12-12   
848-378 8 RCPKNJ02GT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2024-12-12   
848-378 9 RCPKNJ02GT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2024-12-12   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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