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
301-687 7 Frostburg MD   240    
301-687 9 Frostburg MD   240    
301-688 A Washington Zone 13 MD LARLMDDYDS0  236    
301-689 A Frostburg MD FSBGMDFSDS0  240    
301-689 0 Frostburg MD   240    
301-689 1 Frostburg MD   240    
301-689 2 Frostburg MD   240    
301-689 3 Frostburg MD   240    
301-689 5 Frostburg MD   240    
301-689 6 Frostburg MD   240    
301-689 7 Frostburg MD   240    
301-689 8 Frostburg MD   240    
301-689 9 Frostburg MD   240    
301-694 A Frederick MD FRDRMDFRDS1  240    
301-695 A Frederick MD FRDRMDFRDS1  240    
301-696 A Frederick MD FRDRMDFRDS1  240    
301-698 A Frederick MD FRDRMDFRDS1  240    
301-699 A Washington Zone 4 MD HYVLMDHYDS0  236    
301-702 A Washington Zone 5 MD TMHLMDTHDS0  236    
301-703 4 Mount Airy MD   240 2004-11-17   
301-705 A Waldorf MD WDRFMDWDDS0  236    
301-705 0 Waldorf MD   236    
301-705 2 Waldorf MD   236    
301-705 3 Waldorf MD   236    
301-705 4 Waldorf MD   236    
301-705 5 Waldorf MD   236    
301-705 6 Waldorf MD   236    
301-705 7 Waldorf MD   236    
301-705 8 Waldorf MD   236    
301-705 9 Waldorf MD   236    
301-713 A Washington Zone 3 MD SLSPMDSSDSS  236    
301-714 A Hagerstown MD HGTWMDHGDS0  240    
301-714 0 Hagerstown MD   240    
301-714 1 Hagerstown MD   240    
301-714 2 Hagerstown MD   240    
301-714 3 Hagerstown MD   240    
301-714 4 Hagerstown MD   240    
301-714 5 Hagerstown MD   240    
301-714 6 Hagerstown MD   240    
301-714 7 Hagerstown MD   240    
301-714 9 Hagerstown MD   240    
301-716 A Washington Zone 13 MD MRKKMDMKDS0  236    
301-718 A Washington Zone 2 MD CHCHMDBEDS0  236    
301-721 A Washington Zone 10 MD GTBGMDGBPS0  236    
301-722 A Cumberland MD CMLDMDCMDS0  240    
301-723 A Cumberland MD CMLDMDCMDS0  240    
301-723 2 Cumberland MD   240    
301-723 3 Cumberland MD   240    
301-723 4 Cumberland MD   240    
301-723 5 Cumberland MD   240    

<< 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: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.