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: 483

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-483 A Pittsburgh Suburban Zone 10 PA PITBPADTX7X  073H TELNYX LLC 234      
412-483 0 Pittsburgh Suburban Zone 10 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2024-06-07   
412-483 1 Pittsburgh Suburban Zone 10 PA PITBPADTX7X  073H TELNYX LLC 234   2017-06-04   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.