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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: RCPKNJ02XGY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
201-210 A Union City NJ 7421 AT&T - LOCAL 224      
201-234 A Jersey City NJ 7421 AT&T - LOCAL 224      
201-430 A Union City NJ 7421 AT&T - LOCAL 224      
201-442 A Union City NJ 7421 AT&T - LOCAL 224      
862-369 A Nutley NJ 7421 AT&T - LOCAL 224      
908-219 A Summit NJ 7421 AT&T - LOCAL 224      
908-552 A Somerville NJ 7421 AT&T - LOCAL 224      
908-655 A Somerville NJ 7421 AT&T - LOCAL 224      
908-748 A Peapack NJ 7421 AT&T - LOCAL 224      
973-241 A Bernardsville NJ 7421 AT&T - LOCAL 224      
973-251 A Livingston NJ 7421 AT&T - LOCAL 224      
973-265 A Boonton NJ 7421 AT&T - LOCAL 224      
973-337 A Bloomfield NJ 7421 AT&T - LOCAL 224      
973-348 A Bernardsville NJ 7421 AT&T - LOCAL 224      
973-355 A Morristown NJ 7421 AT&T - LOCAL 224      
973-647 A Morristown NJ 7421 AT&T - LOCAL 224      
973-820 A Newark NJ 7421 AT&T - LOCAL 224      

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

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