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.

OCN: 7341 XO COMMUNICATIONS SERVICES INC - PA

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
412-535 9 Pittsburgh Zone 1 PA   234      
412-540 2 Pittsburgh Zone 4 PA   234   2009-05-16   
412-540 3 Pittsburgh Zone 4 PA   234   2009-05-16   
412-545 8 Pittsburgh Zone 4 PA   234   2003-11-17   
412-548 A Pittsburgh Suburban Zone 17 PA   234      
412-548 0 Pittsburgh Suburban Zone 17 PA   234      
412-548 4 Pittsburgh Suburban Zone 17 PA   234      
412-548 5 Pittsburgh Suburban Zone 17 PA   234      
412-564 2 Pittsburgh Suburban Zone 13 PA   234   2009-03-30   
412-564 9 Pittsburgh Suburban Zone 13 PA   234   2003-11-17   
412-573 8 Pittsburgh Suburban Zone 21 PA   234   2008-11-08   
412-587 A Pittsburgh Zone 7 PA   234      
412-587 0 Pittsburgh Zone 7 PA   234      
412-587 4 Pittsburgh Zone 7 PA   234      
412-587 5 Pittsburgh Zone 7 PA   234      
412-587 6 Pittsburgh Zone 7 PA   234      
412-592 A Pittsburgh Zone 1 PA PITBPADTX5Y  234      
412-592 0 Pittsburgh Zone 1 PA   234   2003-10-10   
412-604 9 Pittsburgh Suburban Zone 15 PA   234   2003-11-17   
412-637 A Pittsburgh Suburban Zone 15 PA   234      
412-684 9 Pittsburgh Suburban Zone 18 PA   234   2003-11-17   
412-685 0 Pittsburgh Zone 5 PA   234   2010-04-04   
412-693 9 Pittsburgh Suburban Zone 11 PA   234   2003-11-17   
412-694 0 Pittsburgh Zone 1 PA   234   2013-01-31   
412-695 8 Pittsburgh Suburban Zone 17 PA   234   2003-11-17   
412-696 9 Pittsburgh Zone 3 PA   234   2003-11-17   
412-706 9 Pittsburgh Suburban Zone 14 PA   234   2003-11-17   
412-712 9 Pittsburgh Suburban Zone 21 PA   234   2003-11-17   
412-729 5 Elizabeth PA   234   2008-10-06   
412-729 9 Elizabeth PA   234   2003-11-17   
412-756 8 Pittsburgh Suburban Zone 19 PA   234   2009-08-24   
412-774 A Pittsburgh Zone 1 PA   234      
412-774 0 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 1 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 2 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 3 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 4 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 5 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 6 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 7 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 8 Pittsburgh Zone 1 PA   234   2004-03-20   
412-774 9 Pittsburgh Zone 1 PA   234   2004-03-20   
412-799 8 Pittsburgh Zone 3 PA   234   2002-03-12   
412-839 1 Pittsburgh Suburban Zone 13 PA   234   2012-06-25   
412-843 A Pittsburgh Suburban Zone 22 PA   234      
412-843 0 Pittsburgh Suburban Zone 22 PA   234      
412-843 4 Pittsburgh Suburban Zone 22 PA   234      
412-843 5 Pittsburgh Suburban Zone 22 PA   234      
412-843 6 Pittsburgh Suburban Zone 22 PA   234      
412-872 9 Pittsburgh Suburban Zone 10 PA   234   2003-11-17   

<< 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 >>

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.