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 LIR Eff date Disc date
410-716 0 Towson MD   238    
410-716 1 Towson MD   238    
410-716 2 Towson MD   238    
410-716 3 Towson MD   238    
410-716 7 Towson MD   238    
410-719 A Catonsville MD CTVLMDCTDS0  238    
410-720 A Ellicott City MD CLMAMDCBDS0  238    
410-720 0 Ellicott City MD   238    
410-720 1 Ellicott City MD   238    
410-720 3 Ellicott City MD   238    
410-720 4 Ellicott City MD   238    
410-720 5 Ellicott City MD   238    
410-720 6 Ellicott City MD   238    
410-720 7 Ellicott City MD   238    
410-720 8 Ellicott City MD   238    
410-721 A Crofton MD COTNMDCRDS0  238    
410-722 A Waterloo (Washington DC LATA) MD MRKKMDMKDS0  236    
410-723 A Ocean City MD OCCYMDONDS0  242    
410-724 A Waterloo (Washington DC LATA) MD LARLMDLRDS0  236    
410-724 0 Waterloo (Washington DC LATA) MD   236    
410-724 2 Waterloo (Washington DC LATA) MD   236    
410-724 3 Waterloo (Washington DC LATA) MD   236    
410-724 4 Waterloo (Washington DC LATA) MD   236    
410-724 5 Waterloo (Washington DC LATA) MD   236    
410-724 6 Waterloo (Washington DC LATA) MD   236    
410-724 7 Waterloo (Washington DC LATA) MD   236    
410-724 9 Waterloo (Washington DC LATA) MD   236    
410-727 A Baltimore MD BLTMMDCHDS3  238    
410-728 A Baltimore MD BLTMMDMDDS0  238    
410-729 A Severn MD DRCRMDDCDS0  238    
410-729 0 Severn MD   238    
410-729 1 Severn MD   238    
410-729 2 Severn MD   238    
410-729 3 Severn MD   238    
410-729 4 Severn MD   238    
410-729 5 Severn MD   238    
410-729 7 Severn MD   238    
410-729 8 Severn MD   238    
410-729 9 Severn MD   238    
410-730 A Columbia MD CLMAMDCBDS0  238    
410-732 A Baltimore MD BLTMMDWLDS0  238    
410-734 A Churchville MD CCVLMDCHRS0  238    
410-734 0 Churchville MD   238    
410-734 1 Churchville MD   238    
410-734 4 Churchville MD   238    
410-734 6 Churchville MD   238    
410-734 7 Churchville MD   238    
410-734 9 Churchville MD   238    
410-735 4 Baltimore MD   238 2003-10-18   
410-735 6 Baltimore MD   238 2003-09-26   

<< 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: Sat, 10 Nov 2018 02:05:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.