Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 973 [Rate centres in NPA 973] [Dial plan for NPA 973]

NXX: 899

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
973-899 A Millburn NJ   637C ONVOY, LLC - NJ 224   2025-10-25   
973-899 0 Millburn NJ   637C ONVOY, LLC - NJ 224   2025-10-25   
973-899 1 Millburn NJ   637C ONVOY, LLC - NJ 224   2026-01-04   
973-899 8 Millburn NJ   637C ONVOY, LLC - NJ 224   2026-02-20   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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