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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-850 A Pittsburgh Suburban Zone 19 PA HCKRPAXHDS2  2522 ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS 234      
412-850 0 Pittsburgh Suburban Zone 19 PA PITBPAOKX5X  752H BARR TELL USA, INC. - PA 234      
412-850 1 Pittsburgh Suburban Zone 19 PA PITBPADTX7X  073H TELNYX LLC 234      
412-850 2 Pittsburgh Suburban Zone 19 PA PITBPADTXYY  547E ONVOY, LLC - PA 234      
412-850 3 Pittsburgh Suburban Zone 19 PA PITBPADTXYY  547E ONVOY, LLC - PA 234      
412-850 4 Pittsburgh Suburban Zone 19 PA PITBPADTXYY  547E ONVOY, LLC - PA 234      
412-850 5 Pittsburgh Suburban Zone 19 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234      
412-850 6 Pittsburgh Suburban Zone 19 PA HCKRPAXHDS2  2522 ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS 234      
412-850 7 Pittsburgh Suburban Zone 19 PA BTLRPAXBLMD  508J CENTURYLINK COMMUNICATIONS, LLC 234      
412-850 8 Pittsburgh Suburban Zone 19 PA PITBPAOKAMD  967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234      
412-850 9 Pittsburgh Suburban Zone 19 PA PITBPAOKAMD  967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.