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: BLTMMDCH42Z

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-419 7 Glenwood MD 876D ONVOY, LLC - MD 238   2016-04-04   
443-420 6 Ellicott City MD 876D ONVOY, LLC - MD 238   2016-04-08   
443-420 9 Ellicott City MD 876D ONVOY, LLC - MD 238   2016-04-08   
443-424 6 Cardiff MD 876D ONVOY, LLC - MD 238   2012-10-07   
443-429 1 Woodlawn MD 876D ONVOY, LLC - MD 238   2012-10-08   
443-432 2 Prince Frederick MD 876D ONVOY, LLC - MD 238   2014-10-20   
443-432 4 Prince Frederick MD 876D ONVOY, LLC - MD 238   2014-10-20   
443-450 9 Pikesville MD 876D ONVOY, LLC - MD 238   2016-01-14   
443-453 A Baltimore MD 876D ONVOY, LLC - MD 238      
443-453 0 Baltimore MD 876D ONVOY, LLC - MD 238   2007-12-03   
443-456 4 Edgewood MD 876D ONVOY, LLC - MD 238   2016-01-21   
443-457 2 Brooklyn Park-Linthicum MD 876D ONVOY, LLC - MD 238   2016-03-24   
443-457 9 Brooklyn Park-Linthicum MD 876D ONVOY, LLC - MD 238   2016-03-24   
443-464 0 Churchville MD 876D ONVOY, LLC - MD 238   2015-10-04   
443-464 1 Churchville MD 876D ONVOY, LLC - MD 238   2016-03-25   
443-464 2 Churchville MD 876D ONVOY, LLC - MD 238   2016-03-25   
443-484 0 Edgewood MD 876D ONVOY, LLC - MD 238   2021-07-11   
443-486 1 Prince Frederick MD 876D ONVOY, LLC - MD 238   2016-03-10   
443-486 3 Prince Frederick MD 876D ONVOY, LLC - MD 238   2016-03-10   
443-486 6 Prince Frederick MD 876D ONVOY, LLC - MD 238   2021-09-23   
443-487 0 Westminster MD 876D ONVOY, LLC - MD 238   2022-10-16   
443-489 2 Chase MD 876D ONVOY, LLC - MD 238   2016-03-24   
443-489 4 Chase MD 876D ONVOY, LLC - MD 238   2016-03-24   
443-491 9 Parkton MD 876D ONVOY, LLC - MD 238   2012-10-07   
443-494 2 Millersville MD 876D ONVOY, LLC - MD 238   2012-10-07   
443-494 5 Millersville MD 876D ONVOY, LLC - MD 238   2021-04-02   
443-495 6 Parkville MD 876D ONVOY, LLC - MD 238   2018-05-27   
443-499 5 Jarrettsville MD 876D ONVOY, LLC - MD 238   2023-10-22   
443-499 9 Jarrettsville MD 876D ONVOY, LLC - MD 238   2012-10-07   
443-501 2 Pikesville MD 876D ONVOY, LLC - MD 238   2012-10-08   
443-508 7 Hampstead MD 876D ONVOY, LLC - MD 238   2012-10-07   
443-512 2 Edgewood MD 876D ONVOY, LLC - MD 238   2014-09-05   
443-516 8 Sykesville MD 876D ONVOY, LLC - MD 238   2016-03-28   
443-516 9 Sykesville MD 876D ONVOY, LLC - MD 238   2016-03-28   
443-526 3 Havre de Grace MD 876D ONVOY, LLC - MD 238   2016-03-24   
443-526 4 Havre de Grace MD 876D ONVOY, LLC - MD 238   2016-03-24   
443-526 7 Havre de Grace MD 876D ONVOY, LLC - MD 238   2015-08-01   
443-526 8 Havre de Grace MD 876D ONVOY, LLC - MD 238   2015-08-01   
443-530 5 Dundalk MD 876D ONVOY, LLC - MD 238   2016-01-22   
443-533 5 Jarrettsville MD 876D ONVOY, LLC - MD 238   2016-04-04   
443-533 6 Jarrettsville MD 876D ONVOY, LLC - MD 238   2016-04-04   
443-543 8 Arbutus MD 876D ONVOY, LLC - MD 238   2014-10-06   
443-543 9 Arbutus MD 876D ONVOY, LLC - MD 238   2014-10-06   
443-545 0 Columbia MD 876D ONVOY, LLC - MD 238   2021-09-25   
443-545 7 Columbia MD 876D ONVOY, LLC - MD 238   2016-03-03   
443-550 7 North Beach MD 876D ONVOY, LLC - MD 238   2012-10-07   
443-557 3 Glen Burnie MD 876D ONVOY, LLC - MD 238   2016-02-29   
443-565 4 Randallstown MD 876D ONVOY, LLC - MD 238   2016-04-28   
443-565 6 Randallstown MD 876D ONVOY, LLC - MD 238   2016-04-28   
443-568 3 Arbutus MD 876D ONVOY, LLC - MD 238   2012-10-07   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.