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.

NPA: 412 [Rate centres in NPA 412] [Dial plan for NPA 412]

NXX: 750

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-750 A Pittsburgh Zone 1 PA   193E 8X8, INC. 234   2026-08-30   
412-750 0 Pittsburgh Zone 1 PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2026-10-31   
412-750 1 Pittsburgh Zone 1 PA   193E 8X8, INC. 234   2026-08-30   
412-750 8 Pittsburgh Zone 1 PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2026-10-31   
412-750 9 Pittsburgh Zone 1 PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2026-10-31   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.