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
410-537 4 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 5 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 6 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 7 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 8 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 9 Baltimore MD CLMAMDJTBMD  2589 US LEC OF MARYLAND, INC. 238   2016-02-01   
410-538 A Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 0 Fork MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-09-12   
410-538 1 Fork MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-07   
410-538 2 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-21   
410-538 3 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 4 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 5 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 6 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 7 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 8 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-539 A Baltimore MD BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-540 A Elkridge MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
410-541 A Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-541 0 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-541 1 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-03   
410-541 2 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-541 3 Severna Park MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-04-30   
410-541 4 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-03-04   
410-541 5 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-03-04   
410-541 6 Severna Park MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-541 7 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-03-04   
410-541 8 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-12-14   
410-541 9 Severna Park MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2009-02-12   
410-542 A Baltimore MD BLTMMDLBDS0  9212 VERIZON MARYLAND, INC. 238      
410-543 A Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
410-544 A Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-545 A Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-546 A Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
410-547 A Baltimore MD BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-548 A Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
410-549 A Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-550 A Baltimore MD BLTMMDKMRS0  9212 VERIZON MARYLAND, INC. 238      
410-551 A Severn MD ODTNMDONDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 A Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 0 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 1 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 2 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 3 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 4 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 5 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 6 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-552 7 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
410-552 8 Sykesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-05-20   
410-552 9 Sykesville MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-553 A Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-553 0 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-553 1 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-08-06   
410-553 2 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-553 3 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-553 4 Glen Burnie MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-03-20   
410-553 5 Glen Burnie MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-18   
410-553 6 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-553 7 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-09-22   
410-553 8 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-553 9 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-554 A Baltimore MD BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-556 A Church Hill MD CHRTMDCHDS0  9212 VERIZON MARYLAND, INC. 242      
410-556 0 Church Hill MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-556 2 Church Hill MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-06   
410-556 5 Church Hill MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-14   
410-556 6 Church Hill MD CHRTMDCHDS0  9212 VERIZON MARYLAND, INC. 242      
410-556 7 Church Hill MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
410-556 8 Church Hill MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-556 9 Church Hill MD CHRTMDCHDS0  9212 VERIZON MARYLAND, INC. 242      
410-557 A Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-557 0 Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-557 1 Fork MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2005-04-04   
410-557 2 Fork MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
410-557 3 Fork MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
410-557 4 Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-557 5 Fork MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2006-05-13   
410-557 6 Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-557 7 Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-557 8 Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-557 9 Fork MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-558 A Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 0 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 1 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 2 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 3 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 4 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 5 Baltimore MD BLTMMDKMRS0  9212 VERIZON MARYLAND, INC. 238      
410-558 6 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2005-01-31   
410-558 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-23   
410-558 8 Baltimore MD BLTMMDKMRS0  9212 VERIZON MARYLAND, INC. 238      
410-558 9 Baltimore MD BLTMMDKMRS0  9212 VERIZON MARYLAND, INC. 238      
410-559 A Pikesville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-559 0 Pikesville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-559 1 Pikesville MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-03-14   
410-559 2 Pikesville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-559 3 Pikesville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-559 4 Pikesville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-11-11   
410-559 5 Pikesville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-559 6 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-11-17   

<< 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: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.