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: 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

<< 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-415 3 Baltimore MD BLTMMDCH40Z  238      
443-415 4 Baltimore MD BLTMMDCH40Z  238      
443-415 5 Baltimore MD BLTMMDCH40Z  238      
443-415 6 Baltimore MD BLTMMDCH40Z  238      
443-415 7 Baltimore MD BLTMMDCH40Z  238      
443-415 8 Baltimore MD BLTMMDCH40Z  238      
443-415 9 Baltimore MD BLTMMDCH40Z  238      
443-416 A Baltimore MD BLTMMDCH40Z  238      
443-416 0 Baltimore MD BLTMMDCH40Z  238      
443-416 1 Baltimore MD BLTMMDCH40Z  238      
443-416 2 Baltimore MD BLTMMDCH40Z  238      
443-416 3 Baltimore MD BLTMMDCH40Z  238      
443-416 4 Baltimore MD BLTMMDCH40Z  238      
443-416 5 Baltimore MD BLTMMDCH40Z  238      
443-416 6 Baltimore MD BLTMMDCH40Z  238      
443-416 7 Baltimore MD BLTMMDCH40Z  238      
443-416 8 Baltimore MD BLTMMDCH40Z  238      
443-416 9 Baltimore MD BLTMMDCH40Z  238      
443-418 A Baltimore MD BLTMMDCH40Z  238      
443-418 0 Baltimore MD BLTMMDCH40Z  238      
443-418 1 Baltimore MD BLTMMDCH40Z  238      
443-418 2 Baltimore MD BLTMMDCH40Z  238      
443-418 3 Baltimore MD BLTMMDCH40Z  238      
443-418 4 Baltimore MD BLTMMDCH40Z  238      
443-418 5 Baltimore MD BLTMMDCH40Z  238      
443-418 6 Baltimore MD BLTMMDCH40Z  238      
443-418 7 Baltimore MD BLTMMDCH40Z  238      
443-418 8 Baltimore MD BLTMMDCH40Z  238      
443-418 9 Baltimore MD BLTMMDCH40Z  238      
443-420 5 Ellicott City MD   238   2025-08-15   
443-422 8 Glen Burnie MD BLTMMDCH40Z  238   2010-12-03   
443-423 2 Baltimore MD BLTMMDCH40Z  238   2005-01-27   
443-423 3 Baltimore MD BLTMMDCH40Z  238   2005-01-27   
443-423 9 Baltimore MD BLTMMDCH40Z  238   2005-01-27   
443-431 0 Randallstown MD BLTMMDCH40Z  238   2020-04-06   
443-432 8 Prince Frederick MD BLTMMDCH40Z  238   2014-10-10   
443-432 9 Prince Frederick MD BLTMMDCH40Z  238   2013-12-27   
443-433 9 Annapolis MD BLTMMDCH40Z  238   2011-08-19   
443-435 A Baltimore MD BLTMMDCH40Z  238   2024-02-09   
443-435 0 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 1 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 2 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 3 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 4 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 5 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 6 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 7 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-435 9 Baltimore MD BLTMMDCH40Z  238   2011-03-18   
443-442 9 Parkville MD BLTMMDCH40Z  238   2021-11-04   
443-449 0 Baltimore MD BLTMMDCH40Z  238   2007-07-22   
443-449 1 Baltimore MD BLTMMDCH40Z  238   2007-07-22   
443-449 3 Baltimore MD BLTMMDCH40Z  238   2008-04-08   
443-449 4 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-449 8 Baltimore MD BLTMMDCH40Z  238   2007-08-17   
443-449 9 Baltimore MD BLTMMDCH40Z  238   2007-08-17   
443-450 8 Pikesville MD BLTMMDCH40Z  238   2014-12-13   
443-452 0 Baltimore MD BLTMMDCH40Z  238   2006-02-07   
443-452 4 Baltimore MD BLTMMDCH40Z  238   2005-10-31   
443-453 1 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-453 2 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-453 3 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-453 4 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-453 6 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-453 7 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-453 8 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-454 A Annapolis MD BLTMMDCH40Z  238      
443-454 0 Annapolis MD BLTMMDCH40Z  238      
443-454 2 Annapolis MD BLTMMDCH40Z  238      
443-454 3 Annapolis MD BLTMMDCH40Z  238      
443-454 4 Annapolis MD BLTMMDCH40Z  238      
443-454 5 Annapolis MD BLTMMDCH40Z  238      
443-454 6 Annapolis MD BLTMMDCH40Z  238      
443-454 7 Annapolis MD BLTMMDCH40Z  238      
443-454 9 Annapolis MD BLTMMDCH40Z  238      
443-455 0 Baltimore MD BLTMMDCH40Z  238   2008-06-16   
443-455 2 Baltimore MD BLTMMDCH40Z  238   2006-07-04   
443-455 3 Baltimore MD BLTMMDCH40Z  238   2006-07-04   
443-455 7 Baltimore MD BLTMMDCH40Z  238   2006-07-04   
443-459 7 Elkridge MD   238   2011-11-07   
443-460 8 Essex MD BLTMMDCH40Z  238   2008-03-31   
443-463 A Baltimore MD BLTMMDCH40Z  238      
443-463 0 Baltimore MD BLTMMDCH40Z  238      
443-463 1 Baltimore MD BLTMMDCH40Z  238      
443-463 2 Baltimore MD BLTMMDCH40Z  238      
443-463 3 Baltimore MD BLTMMDCH40Z  238      
443-463 4 Baltimore MD BLTMMDCH40Z  238      
443-463 5 Baltimore MD BLTMMDCH40Z  238      
443-463 6 Baltimore MD BLTMMDCH40Z  238      
443-463 7 Baltimore MD BLTMMDCH40Z  238      
443-463 8 Baltimore MD BLTMMDCH40Z  238      
443-463 9 Baltimore MD BLTMMDCH40Z  238      
443-468 A Baltimore MD BLTMMDCH40Z  238      
443-468 0 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 1 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 2 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 3 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 4 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 5 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 6 Baltimore MD BLTMMDCH40Z  238   2007-05-19   
443-468 7 Baltimore MD BLTMMDCH40Z  238   2007-05-19   

<< 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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.