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: 876D ONVOY, LLC - MD

<< 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 LATA LIR Eff date Disc date
443-746 8 Easton MD SLBRMDSBXVX  242   2020-04-30   
443-747 7 Port Deposit MD BLTMMDCH42Z  238   2012-10-08   
443-748 1 Millersville MD BLTMMDCH42Z  238   2021-04-02   
443-748 9 Millersville MD BLTMMDCH42Z  238   2022-11-23   
443-753 7 Waterloo (Washington DC LATA) MD VINNVACBDS0  236   2021-05-21   
443-764 8 Glen Burnie MD BLTMMDCH42Z  238   2012-10-07   
443-767 1 Worthington MD BLTMMDCH42Z  238   2020-06-11   
443-767 3 Worthington MD BLTMMDCH42Z  238   2020-06-11   
443-767 4 Worthington MD BLTMMDCH42Z  238   2012-10-08   
443-770 6 Armiger-Gibson Island MD BLTMMDCH42Z  238   2014-09-05   
443-775 2 Annapolis MD BLTMMDCH42Z  238   2014-12-31   
443-775 3 Annapolis MD BLTMMDCH42Z  238   2014-12-31   
443-775 7 Annapolis MD BLTMMDCH42Z  238   2016-02-22   
443-776 2 Elkridge MD BLTMMDCH42Z  238   2014-09-27   
443-776 4 Elkridge MD BLTMMDCH42Z  238   2014-09-27   
443-781 A Armiger-Gibson Island MD BLTMMDCH42Z  238   2024-03-05   
443-781 5 Armiger-Gibson Island MD BLTMMDCH42Z  238   2021-03-04   
443-781 6 Armiger-Gibson Island MD BLTMMDCH42Z  238   2021-03-04   
443-781 8 Armiger-Gibson Island MD BLTMMDCH42Z  238   2019-02-19   
443-781 9 Armiger-Gibson Island MD BLTMMDCH42Z  238   2019-02-19   
443-782 3 Annapolis MD BLTMMDCH42Z  238   2017-06-02   
443-782 4 Annapolis MD BLTMMDCH42Z  238   2018-05-27   
443-785 A Arbutus MD BLTMMDCH42Z  238      
443-787 3 Bel Air MD BLTMMDCH42Z  238   2014-09-05   
443-792 0 Brooklyn Park-Linthicum MD BLTMMDCH42Z  238   2014-10-07   
443-792 8 Brooklyn Park-Linthicum MD BLTMMDCH42Z  238   2014-10-07   
443-815 4 Essex MD BLTMMDCH42Z  238   2014-11-01   
443-815 7 Essex MD BLTMMDCH42Z  238   2014-11-01   
443-819 1 Bel Air MD BLTMMDCH42Z  238   2015-07-30   
443-819 2 Bel Air MD BLTMMDCH42Z  238   2015-07-30   
443-830 3 Catonsville MD BLTMMDCH42Z  238   2021-09-23   
443-830 5 Catonsville MD BLTMMDCH42Z  238   2021-07-11   
443-830 6 Catonsville MD BLTMMDCH42Z  238   2021-07-11   
443-836 4 Baltimore MD BLTMMDCH42Z  238   2018-12-13   
443-836 5 Baltimore MD BLTMMDCH42Z  238   2020-02-13   
443-843 0 Havre de Grace MD BLTMMDCH42Z  238   2012-10-07   
443-853 8 Baltimore MD BLTMMDCH42Z  238   2018-12-13   
443-853 9 Baltimore MD BLTMMDCH42Z  238   2018-12-13   
443-868 2 Essex MD BLTMMDCH42Z  238   2014-09-01   
443-870 4 Pikesville MD BLTMMDCH42Z  238   2014-12-31   
443-870 5 Pikesville MD BLTMMDCH42Z  238   2014-12-31   
443-873 A Baltimore MD BLTMMDCH42Z  238      
443-873 2 Baltimore MD BLTMMDCH42Z  238   2010-04-16   
443-879 2 Dundalk MD BLTMMDCH42Z  238   2014-09-05   
443-879 7 Dundalk MD BLTMMDCH42Z  238   2014-12-31   
443-879 8 Dundalk MD BLTMMDCH42Z  238   2014-12-31   
443-888 0 Princess Anne MD SLBRMDSBXVX  242   2017-04-14   
443-888 2 Princess Anne MD SLBRMDSBXVX  242   2019-03-10   
443-888 3 Princess Anne MD SLBRMDSBXVX  242   2019-03-10   
443-888 5 Princess Anne MD SLBRMDSBXVX  242   2023-10-22   

<< 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: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.