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: 363 [Rate centres in NPA 363] [Dial plan for NPA 363]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
363-900 A Nassau Zone 8 NY   624H ONVOY SPECTRUM, LLC 132   2026-02-20   
363-900 0 Nassau Zone 8 NY   624H ONVOY SPECTRUM, LLC 132   2026-02-20   
363-900 1 Nassau Zone 8 NY   384C ONVOY, LLC- NY 132   2026-02-23   
363-900 2 Nassau Zone 8 NY   384C ONVOY, LLC- NY 132   2026-02-23   
363-900 6 Nassau Zone 8 NY   384C ONVOY, LLC- NY 132   2026-02-23   
363-900 8 Nassau Zone 8 NY   624H ONVOY SPECTRUM, LLC 132   2026-02-20   
363-900 9 Nassau Zone 8 NY   624H ONVOY SPECTRUM, LLC 132   2026-02-20   

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

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