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
443-790 1 Glen Burnie MD BLTMMDCH40Z  238      
443-790 2 Glen Burnie MD BLTMMDCH40Z  238      
443-790 3 Glen Burnie MD BLTMMDCH40Z  238      
443-790 4 Glen Burnie MD BLTMMDCH40Z  238      
443-790 5 Glen Burnie MD BLTMMDCH40Z  238      
443-790 6 Glen Burnie MD BLTMMDCH40Z  238      
443-790 7 Glen Burnie MD BLTMMDCH40Z  238      
443-790 8 Glen Burnie MD BLTMMDCH40Z  238      
443-790 9 Glen Burnie MD BLTMMDCH40Z  238      
443-793 8 Parkville MD BLTMMDCH40Z  238   2019-10-07   
443-796 8 Pikesville MD BLTMMDCH40Z  238   2015-08-14   
443-800 A Baltimore MD BLTMMDCH40Z  238   2024-02-09   
443-800 6 Baltimore MD BLTMMDCH40Z  238   2011-03-28   
443-800 7 Baltimore MD BLTMMDCH40Z  238   2011-03-28   
443-800 8 Baltimore MD BLTMMDCH40Z  238   2011-03-28   
443-800 9 Baltimore MD BLTMMDCH40Z  238   2011-03-28   
443-801 A Baltimore MD BLTMMDCH40Z  238      
443-801 0 Baltimore MD BLTMMDCH40Z  238      
443-801 1 Baltimore MD BLTMMDCH40Z  238      
443-801 2 Baltimore MD BLTMMDCH40Z  238      
443-801 3 Baltimore MD BLTMMDCH40Z  238      
443-801 4 Baltimore MD BLTMMDCH40Z  238      
443-801 5 Baltimore MD BLTMMDCH40Z  238      
443-801 6 Baltimore MD BLTMMDCH40Z  238      
443-801 7 Baltimore MD BLTMMDCH40Z  238      
443-801 8 Baltimore MD BLTMMDCH40Z  238      
443-801 9 Baltimore MD BLTMMDCH40Z  238      
443-802 A Baltimore MD BLTMMDCH40Z  238      
443-802 0 Baltimore MD BLTMMDCH40Z  238      
443-802 1 Baltimore MD BLTMMDCH40Z  238      
443-802 2 Baltimore MD BLTMMDCH40Z  238      
443-802 3 Baltimore MD BLTMMDCH40Z  238      
443-802 4 Baltimore MD BLTMMDCH40Z  238      
443-802 5 Baltimore MD BLTMMDCH40Z  238      
443-802 6 Baltimore MD BLTMMDCH40Z  238      
443-802 7 Baltimore MD BLTMMDCH40Z  238      
443-802 8 Baltimore MD BLTMMDCH40Z  238      
443-802 9 Baltimore MD BLTMMDCH40Z  238      
443-803 A Baltimore MD BLTMMDCH40Z  238      
443-803 0 Baltimore MD BLTMMDCH40Z  238      
443-803 1 Baltimore MD BLTMMDCH40Z  238      
443-803 2 Baltimore MD BLTMMDCH40Z  238      
443-803 3 Baltimore MD BLTMMDCH40Z  238      
443-803 4 Baltimore MD BLTMMDCH40Z  238      
443-803 5 Baltimore MD BLTMMDCH40Z  238      
443-803 6 Baltimore MD BLTMMDCH40Z  238      
443-803 7 Baltimore MD BLTMMDCH40Z  238      
443-803 8 Baltimore MD BLTMMDCH40Z  238      
443-804 A Baltimore MD BLTMMDCH40Z  238      
443-804 0 Baltimore MD BLTMMDCH40Z  238      
443-804 1 Baltimore MD BLTMMDCH40Z  238      
443-804 2 Baltimore MD BLTMMDCH40Z  238      
443-804 3 Baltimore MD BLTMMDCH40Z  238      
443-804 4 Baltimore MD BLTMMDCH40Z  238      
443-804 5 Baltimore MD BLTMMDCH40Z  238      
443-804 6 Baltimore MD BLTMMDCH40Z  238      
443-804 7 Baltimore MD BLTMMDCH40Z  238      
443-804 8 Baltimore MD BLTMMDCH40Z  238      
443-804 9 Baltimore MD BLTMMDCH40Z  238      
443-805 A Glen Burnie MD BLTMMDCH40Z  238      
443-805 0 Glen Burnie MD BLTMMDCH40Z  238   2008-10-24   
443-805 3 Glen Burnie MD BLTMMDCH40Z  238   2014-03-23   
443-805 7 Glen Burnie MD BLTMMDCH40Z  238   2008-10-03   
443-805 8 Glen Burnie MD BLTMMDCH40Z  238   2008-10-03   
443-805 9 Glen Burnie MD BLTMMDCH40Z  238   2008-10-02   
443-806 A Baltimore MD BLTMMDCH40Z  238   2024-02-09   
443-806 6 Baltimore MD BLTMMDCH40Z  238   2006-04-29   
443-807 4 Fallston MD   238   2005-03-12   
443-807 6 Fallston MD   238      
443-807 7 Fallston MD   238      
443-807 8 Fallston MD   238      
443-807 9 Fallston MD   238      
443-810 A Baltimore MD BLTMMDCH40Z  238      
443-810 0 Baltimore MD BLTMMDCH40Z  238   2010-07-16   
443-810 1 Baltimore MD BLTMMDCH40Z  238   2010-08-01   
443-810 3 Baltimore MD BLTMMDCH40Z  238   2010-08-01   
443-810 4 Baltimore MD BLTMMDCH40Z  238   2009-12-26   
443-810 5 Baltimore MD BLTMMDCH40Z  238   2010-01-26   
443-810 6 Baltimore MD BLTMMDCH40Z  238   2008-11-10   
443-810 7 Baltimore MD BLTMMDCH40Z  238   2008-11-10   
443-810 8 Baltimore MD BLTMMDCH40Z  238   2008-11-10   
443-810 9 Baltimore MD BLTMMDCH40Z  238   2008-11-10   
443-813 3 Baltimore MD BLTMMDCH40Z  238   2008-02-04   
443-813 4 Baltimore MD BLTMMDCH40Z  238   2008-02-04   
443-813 5 Baltimore MD BLTMMDCH40Z  238   2008-02-04   
443-813 6 Baltimore MD BLTMMDCH40Z  238   2008-02-11   
443-813 7 Baltimore MD BLTMMDCH40Z  238   2008-02-11   
443-813 8 Baltimore MD BLTMMDCH40Z  238   2008-02-11   
443-813 9 Baltimore MD BLTMMDCH40Z  238   2008-04-08   
443-814 1 Baltimore MD BLTMMDCH40Z  238   2010-08-16   
443-814 2 Baltimore MD BLTMMDCH40Z  238   2010-08-16   
443-814 3 Baltimore MD BLTMMDCH40Z  238   2010-08-16   
443-814 4 Baltimore MD BLTMMDCH40Z  238   2010-08-16   
443-814 5 Baltimore MD BLTMMDCH40Z  238   2010-08-16   
443-814 6 Baltimore MD BLTMMDCH40Z  238   2010-08-16   
443-814 7 Baltimore MD BLTMMDCH40Z  238   2010-10-01   
443-814 8 Baltimore MD BLTMMDCH40Z  238   2010-10-01   
443-815 1 Essex MD BLTMMDCH40Z  238   2014-11-08   
443-815 8 Essex MD BLTMMDCH40Z  238   2014-10-10   
443-815 9 Essex MD BLTMMDCH40Z  238   2014-11-08   

<< 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: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.