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
410-343 1 Sparks-Glencoe MD   238    
410-343 2 Sparks-Glencoe MD   238    
410-343 3 Sparks-Glencoe MD   238    
410-344 A Chase MD CHASMDCHDS0  238    
410-344 0 Chase MD   238    
410-344 1 Chase MD   238    
410-344 9 Chase MD   238    
410-345 A Pikesville MD OWMLMDOMDS0  238    
410-345 1 Pikesville MD   238    
410-345 2 Pikesville MD   238    
410-345 3 Pikesville MD   238    
410-345 4 Pikesville MD   238    
410-345 5 Pikesville MD   238    
410-345 6 Pikesville MD   238    
410-345 7 Pikesville MD   238    
410-345 8 Pikesville MD   238    
410-346 A Silver Run MD SLRNMDSLRS0  238    
410-346 6 Silver Run MD   238    
410-346 7 Silver Run MD   238    
410-346 8 Silver Run MD   238 2006-07-27   
410-347 A Baltimore MD BLTMMDCHDS3  238    
410-348 A Still Pond MD STPNMDSPRS0  242    
410-348 2 Still Pond MD   242    
410-348 5 Still Pond MD   242    
410-348 9 Still Pond MD   242    
410-349 A Annapolis MD STMRMDSMRS1  238    
410-349 0 Annapolis MD   238    
410-349 1 Annapolis MD   238    
410-349 2 Annapolis MD   238    
410-349 3 Annapolis MD   238    
410-349 4 Annapolis MD   238    
410-349 8 Annapolis MD   238    
410-349 9 Annapolis MD   238    
410-350 A Baltimore MD BRKLMDBKDS0  238    
410-350 0 Baltimore MD   238    
410-350 2 Baltimore MD   238    
410-350 3 Baltimore MD   238    
410-350 7 Baltimore MD   238    
410-350 8 Baltimore MD   238    
410-352 A Bishopville MD BSHPMDBPRS0  242    
410-352 3 Bishopville MD   242    
410-352 5 Bishopville MD   242    
410-352 9 Bishopville MD   242    
410-354 A Baltimore MD BRKLMDBKDS0  238    
410-355 A Baltimore MD BRKLMDBKDS0  238    
410-356 A Pikesville MD OWMLMDOMDS0  238    
410-357 A Parkton MD PKTNMDPKRS0  238    
410-357 0 Parkton MD   238    
410-357 4 Parkton MD   238    
410-357 5 Parkton 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: Tue, 02 Oct 2018 01:27:32 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.