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: 9212 VERIZON MARYLAND, INC.

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA Eff date Disc date
410-772 2 Columbia MD   238    
410-772 3 Columbia MD   238    
410-772 5 Columbia MD   238    
410-772 6 Columbia MD   238    
410-772 7 Columbia MD   238    
410-772 8 Columbia MD   238    
410-772 9 Columbia MD   238    
410-773 A Cockeysville MD CYVLMDDADS0  238    
410-773 3 Cockeysville MD   238    
410-773 4 Cockeysville MD   238    
410-773 7 Cockeysville MD   238    
410-773 8 Cockeysville MD   238    
410-774 7 Crofton MD   238 2005-10-15   
410-775 A Union Bridge MD UNBRMDUBRS0  238    
410-775 0 Union Bridge MD   238    
410-775 1 Union Bridge MD   238    
410-775 2 Union Bridge MD   238    
410-775 7 Union Bridge MD   238    
410-778 A Chestertown MD CHRTMDCHDS0  242    
410-780 A Essex MD ESSXMDEXDS0  238    
410-781 A Ellicott City MD SYVLMDSKDS0  238    
410-781 0 Ellicott City MD   238    
410-781 4 Ellicott City MD   238    
410-781 6 Ellicott City MD   238    
410-781 7 Ellicott City MD   238    
410-782 A Elkridge MD EKRGMDPKRS0  238    
410-782 2 Elkridge MD   238    
410-782 7 Elkridge MD   238    
410-782 8 Elkridge MD   238    
410-783 A Baltimore MD BLTMMDCHDS3  238    
410-784 A Deal Island MD DLISMDDLRS0  242    
410-784 2 Deal Island MD   242    
410-785 A Cockeysville MD CYVLMDDADS0  238    
410-787 A Glen Burnie MD GLBRMDGLDS0  238    
410-788 A Catonsville MD CTVLMDCTDS0  238    
410-789 A Brooklyn Park-Linthicum MD BRKLMDBKDS0  238    
410-791 A Waterloo (Washington DC LATA) MD MRKKMDMKDS0  236    
410-792 A Waterloo (Washington DC LATA) MD LARLMDLRDS0  236    
410-793 A Severna Park MD COTNMDCRDS0  238    
410-793 0 Severna Park MD   238    
410-795 A Sykesville MD SYVLMDSKDS0  238    
410-796 A Elkridge MD EKRGMDELDS0  238    
410-796 0 Elkridge MD   238    
410-796 1 Elkridge MD   238    
410-796 2 Elkridge MD   238    
410-796 3 Elkridge MD   238    
410-796 4 Elkridge MD   238    
410-796 5 Elkridge MD   238    
410-796 6 Elkridge MD   238    
410-796 7 Elkridge MD   238    

<< 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 >>

Last updated: Fri, 07 Sep 2018 02:13:12 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.