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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-741 9 West River MD   9212 VERIZON MARYLAND, INC. 238      
410-742 A Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
410-743 A Baltimore MD HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-744 A Catonsville MD CTVLMDCTDS0  9212 VERIZON MARYLAND, INC. 238      
410-745 A St Michaels MD STMCMDSMRS0  9212 VERIZON MARYLAND, INC. 242      
410-745 0 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-745 1 St Michaels MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-745 2 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-745 3 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-745 4 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-745 5 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-745 6 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-745 7 St Michaels MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
410-745 8 St Michaels MD   228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-745 9 St Michaels MD   9212 VERIZON MARYLAND, INC. 242      
410-746 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-747 A Catonsville MD CTVLMDCTDS0  9212 VERIZON MARYLAND, INC. 238      
410-748 A Ellicott City MD HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-749 A Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
410-750 A Ellicott City MD ELCYMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-751 A Westminster MD TNTWMDTNRS0  9212 VERIZON MARYLAND, INC. 238      
410-752 A Baltimore MD BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-753 A Pikesville MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-753 0 Pikesville MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-753 1 Pikesville MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-753 2 Pikesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-12-28   
410-753 3 Pikesville MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-08   
410-753 4 Pikesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
410-753 5 Pikesville MD   624H ONVOY SPECTRUM, LLC 238   2021-11-11   
410-753 6 Pikesville MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-09-07   
410-753 7 Pikesville MD   624H ONVOY SPECTRUM, LLC 238   2021-11-11   
410-753 8 Pikesville MD   829J PAETEC ITEL, LLC 238   2003-02-27   
410-753 9 Pikesville MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-754 A Federalsburg MD FDBGMDFERS0  9212 VERIZON MARYLAND, INC. 242      
410-754 0 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 1 Federalsburg MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-754 2 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 3 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 4 Federalsburg MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
410-754 5 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 6 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 7 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 8 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-754 9 Federalsburg MD   9212 VERIZON MARYLAND, INC. 242      
410-755 A Warwick MD CCTNMDCLRS0  9212 VERIZON MARYLAND, INC. 242      
410-755 0 Warwick MD   228C IDT AMERICA, CORP. - MD 242   2012-07-07   
410-755 1 Warwick MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-755 4 Warwick MD   318J COMCAST IP PHONE, LLC 242   2014-05-12   
410-755 5 Warwick MD   876D ONVOY, LLC - MD 242   2022-11-24   
410-755 6 Warwick MD   9212 VERIZON MARYLAND, INC. 242      
410-755 7 Warwick MD   876D ONVOY, LLC - MD 242   2017-04-14   
410-755 8 Warwick MD   073H TELNYX LLC 242   2017-09-13   
410-755 9 Warwick MD   145J TERRA NOVA TELECOM INC. 242   2024-02-15   
410-756 A Taneytown MD TNTWMDTNRS0  9212 VERIZON MARYLAND, INC. 238      
410-756 0 Taneytown MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-756 1 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-756 2 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-756 3 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-756 4 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-756 5 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-756 6 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-756 7 Taneytown MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
410-756 8 Taneytown MD   876D ONVOY, LLC - MD 238   2016-04-08   
410-756 9 Taneytown MD   9212 VERIZON MARYLAND, INC. 238      
410-757 A Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-758 A Centreville MD CNVLMDCTRS2  9212 VERIZON MARYLAND, INC. 242      
410-758 0 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 1 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 2 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 3 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 4 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 5 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 6 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 7 Centreville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-758 8 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-758 9 Centreville MD   9212 VERIZON MARYLAND, INC. 242      
410-759 A Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-759 0 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-15   
410-759 1 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-15   
410-759 2 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-759 3 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-759 4 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-759 5 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-759 6 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-759 7 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
410-759 8 Baltimore MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2016-12-24   
410-759 9 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-15   
410-760 A Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-761 A Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-762 A Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-762 0 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
410-762 1 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-762 2 Glen Burnie MD   829J PAETEC ITEL, LLC 238   2004-11-27   
410-762 3 Glen Burnie MD   876D ONVOY, LLC - MD 238   2024-02-25   
410-762 4 Glen Burnie MD   876D ONVOY, LLC - MD 238   2016-01-15   
410-762 5 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-762 6 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-762 7 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
410-762 8 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-01-31   
410-762 9 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-01-31   

<< 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 >>

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.