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 91 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-480 A Ellicott City MD ELCYMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-481 A Baltimore MD BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-482 A Greensboro MD GNBOMDGRRS0  9212 VERIZON MARYLAND, INC. 242      
410-482 0 Greensboro MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-03-29   
410-482 1 Greensboro MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
410-482 2 Greensboro MD GNBOMDGRRS0  9212 VERIZON MARYLAND, INC. 242      
410-482 3 Greensboro MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-482 4 Greensboro MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2006-07-31   
410-482 5 Greensboro MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
410-482 6 Greensboro MD GNBOMDGRRS0  9212 VERIZON MARYLAND, INC. 242      
410-482 7 Greensboro MD GNBOMDGRRS0  9212 VERIZON MARYLAND, INC. 242      
410-482 8 Greensboro MD GNBOMDGRRS0  9212 VERIZON MARYLAND, INC. 242      
410-482 9 Greensboro MD GNBOMDGRRS0  9212 VERIZON MARYLAND, INC. 242      
410-483 A Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 0 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 1 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 2 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 3 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 4 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 5 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 6 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 7 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-483 8 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-02-21   
410-483 9 Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-484 A Pikesville MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-485 A Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-486 A Pikesville MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-487 A Glen Burnie MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 0 Glen Burnie MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 1 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-02-02   
410-487 2 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-04-02   
410-487 3 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-05-03   
410-487 4 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-07-02   
410-487 5 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-08-02   
410-487 6 Glen Burnie MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-05-02   
410-487 7 Glen Burnie MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 8 Glen Burnie MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 9 Glen Burnie MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-488 A Baltimore MD BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-489 A Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 0 Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 1 Glenwood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
410-489 2 Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 3 Glenwood MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
410-489 4 Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 5 Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 6 Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 7 Glenwood MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-489 8 Glenwood MD   829J PAETEC ITEL, LLC 238   2003-02-26   
410-489 9 Glenwood MD GLWDMDGDRS1  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 91 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.