Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 908 [Rate centres in NPA 908] [Dial plan for NPA 908]

NXX: 593

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
908-593 A Plainfield NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2026-06-18   
908-593 0 Plainfield NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2026-06-18   
908-593 1 Plainfield NJ NWRKNJMDDSK  637C ONVOY, LLC - NJ 224   2026-06-19   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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