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
410-794 1 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-794 2 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-794 3 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-794 4 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-794 5 Columbia MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2006-05-04   
410-794 6 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-06-01   
410-794 7 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-794 8 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-794 9 Columbia MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-795 A Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 A Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 0 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 1 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 2 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 3 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 4 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 5 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 6 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 7 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 8 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-796 9 Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-797 A Waterloo (Washington DC LATA) MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
410-798 A West River MD MAYOMDMYRS1  9212 VERIZON MARYLAND, INC. 238      
410-799 A Waterloo MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-800 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-800 0 Baltimore MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2004-11-26   
410-800 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-06-19   
410-800 2 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-800 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-11-07   
410-800 4 Baltimore MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-30   
410-800 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-05-09   
410-800 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-05-09   
410-800 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-01   
410-800 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-01   
410-800 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-06-19   
410-801 A Baltimore MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-801 0 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-15   
410-801 1 Baltimore MD   876D ONVOY, LLC - MD 238   2024-02-24   
410-801 2 Baltimore MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2017-04-06   
410-801 3 Baltimore MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2017-04-06   
410-801 4 Baltimore MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2017-04-06   
410-801 5 Baltimore MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2019-07-09   
410-801 6 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-08-12   
410-801 7 Baltimore MD BLTMMDCHUMD  156J RCLEC, INC. 238   2017-03-02   
410-801 8 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2018-06-07   
410-801 9 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-08-12   
410-802 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-803 A Fork MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-803 0 Fork MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-803 1 Fork MD BLARMDBLDS0  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: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.