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.

Switch: PIVLMDPKXEX

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-332 4 Crofton MD 829J PAETEC ITEL, LLC 238   2002-07-12   
443-332 6 Crofton MD 829J PAETEC ITEL, LLC 238   2006-03-28   
443-341 8 Catonsville MD 829J PAETEC ITEL, LLC 238   2004-03-27   
443-343 1 Millersville MD 829J PAETEC ITEL, LLC 238   2003-07-12   
443-343 5 Millersville MD 829J PAETEC ITEL, LLC 238   2006-05-20   
443-351 A Odenton MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-351 0 Odenton MD 829J PAETEC ITEL, LLC 238      
443-351 1 Odenton MD 829J PAETEC ITEL, LLC 238      
443-351 2 Odenton MD 829J PAETEC ITEL, LLC 238      
443-351 3 Odenton MD 829J PAETEC ITEL, LLC 238      
443-351 9 Odenton MD 829J PAETEC ITEL, LLC 238      
443-353 6 Cockeysville MD 829J PAETEC ITEL, LLC 238   2008-06-09   
443-367 4 Columbia MD 829J PAETEC ITEL, LLC 238   2007-06-15   
443-371 4 Bel Air MD 829J PAETEC ITEL, LLC 238   2006-04-08   
443-372 A Edgewood MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-372 0 Edgewood MD 829J PAETEC ITEL, LLC 238      
443-372 1 Edgewood MD 829J PAETEC ITEL, LLC 238      
443-372 2 Edgewood MD 829J PAETEC ITEL, LLC 238      
443-372 3 Edgewood MD 829J PAETEC ITEL, LLC 238      
443-372 6 Edgewood MD 829J PAETEC ITEL, LLC 238   2003-12-01   
443-372 9 Edgewood MD 829J PAETEC ITEL, LLC 238      
443-376 3 Dundalk MD 829J PAETEC ITEL, LLC 238   2007-06-14   
443-378 3 Baltimore MD 829J PAETEC ITEL, LLC 238   2006-02-10   
443-379 5 Pikesville MD 829J PAETEC ITEL, LLC 238   2011-01-20   
443-400 8 Brooklyn Park-Linthicum MD 829J PAETEC ITEL, LLC 238   2002-05-19   
443-406 1 Elkton MD 829J PAETEC ITEL, LLC 238   2002-06-24   
443-412 1 Churchville MD 829J PAETEC ITEL, LLC 238   2004-01-10   
443-417 2 Fallston MD 829J PAETEC ITEL, LLC 238   2003-04-01   
443-419 1 Glenwood MD 829J PAETEC ITEL, LLC 238   2004-03-09   
443-424 1 Cardiff MD 829J PAETEC ITEL, LLC 238   2004-02-02   
443-426 A Randallstown MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-426 0 Randallstown MD 829J PAETEC ITEL, LLC 238      
443-426 1 Randallstown MD 829J PAETEC ITEL, LLC 238      
443-426 5 Randallstown MD 829J PAETEC ITEL, LLC 238   2003-03-04   
443-426 9 Randallstown MD 829J PAETEC ITEL, LLC 238      
443-433 1 Annapolis MD 829J PAETEC ITEL, LLC 238   2005-10-07   
443-438 2 Baltimore MD 829J PAETEC ITEL, LLC 238   2009-09-17   
443-449 A Baltimore MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-449 2 Baltimore MD 829J PAETEC ITEL, LLC 238   2007-05-19   
443-451 A Baltimore MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-452 A Baltimore MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-452 1 Baltimore MD 829J PAETEC ITEL, LLC 238   2005-10-30   
443-457 1 Brooklyn Park-Linthicum MD 829J PAETEC ITEL, LLC 238   2003-03-26   
443-459 A Elkridge MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-459 0 Elkridge MD 829J PAETEC ITEL, LLC 238      
443-459 3 Elkridge MD 829J PAETEC ITEL, LLC 238   2004-09-09   
443-461 A Parkville MD 829J PAETEC ITEL, LLC 238   2025-04-01   
443-461 0 Parkville MD 829J PAETEC ITEL, LLC 238      
443-461 1 Parkville MD 829J PAETEC ITEL, LLC 238      
443-461 2 Parkville MD 829J PAETEC ITEL, LLC 238      

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.