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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-998 6 Pittsburgh Suburban Zone 13 PA KCBGPAXKDS1  050A CITIZENS TELECOM SOLUTIONS, LLC - PA 234   2017-12-04   
412-998 7 Pittsburgh Suburban Zone 13 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2014-10-17   
412-998 8 Pittsburgh Suburban Zone 13 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2014-10-17   
412-998 9 Pittsburgh Suburban Zone 13 PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-999 A Pittsburgh Zone 1 PA PITBPADTX2X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.