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.

NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

<< 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 82 83 84 85 86 87 88 89 90 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-847 4 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
410-847 5 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
410-847 6 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-847 7 Towson MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2019-03-25   
410-847 9 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-848 A Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-849 A Sherwood Forest MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
410-849 0 Sherwood Forest MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-04-24   
410-849 1 Sherwood Forest MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2006-07-31   
410-849 2 Sherwood Forest MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
410-849 3 Sherwood Forest MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
410-849 4 Sherwood Forest MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2004-02-05   
410-849 5 Sherwood Forest MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
410-849 6 Sherwood Forest MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-06-15   
410-849 7 Sherwood Forest MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-07-25   
410-849 8 Sherwood Forest MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
410-849 9 Sherwood Forest MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-850 A Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-851 A Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-852 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-853 A Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 0 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 1 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 2 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 3 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 4 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 5 Towson MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-853 6 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 7 Towson MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-853 8 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 9 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-854 A Waterloo (Washington DC LATA) MD ODTNMDAUDS0  9212 VERIZON MARYLAND, INC. 236      
410-855 A Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 0 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-08-15   
410-855 1 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
410-855 2 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
410-855 3 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
410-855 4 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-08-21   
410-855 5 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-07-02   
410-855 6 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 7 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 8 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-855 9 Glen Burnie MD FPATMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-856 A Baltimore MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-856 0 Baltimore MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-856 1 Baltimore MD BLTMMDCH14Z  5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238   2005-04-21   
410-856 2 Baltimore MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-856 3 Baltimore MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-856 4 Baltimore MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-856 5 Baltimore MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 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 82 83 84 85 86 87 88 89 90 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.