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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-424 A Glen Burnie MD GLBRMDGLDS0  9212 VERIZON MARYLAND, INC. 238      
410-424 0 Glen Burnie MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-04-30   
410-424 1 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-424 2 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-424 3 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-424 4 Glen Burnie MD   9212 VERIZON MARYLAND, INC. 238      
410-424 5 Glen Burnie MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
410-424 6 Glen Burnie MD   876D ONVOY, LLC - MD 238   2015-05-11   
410-424 7 Glen Burnie MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
410-424 8 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
410-424 9 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
410-425 A Smith Island MD SMISMDSIRS0  9212 VERIZON MARYLAND, INC. 242      
410-425 0 Smith Island MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2004-04-03   
410-425 1 Smith Island MD   073H TELNYX LLC 242   2017-09-13   
410-425 2 Smith Island MD   9212 VERIZON MARYLAND, INC. 242      
410-425 3 Smith Island MD   876D ONVOY, LLC - MD 242   2019-02-26   
410-425 4 Smith Island MD   876D ONVOY, LLC - MD 242   2019-02-26   
410-425 6 Smith Island MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-425 7 Smith Island MD   876D ONVOY, LLC - MD 242   2017-04-14   
410-425 8 Smith Island MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-425 9 Smith Island MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-426 A Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-427 A Towson MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-428 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-429 A Worthington MD RSTWMDRSDS0  9212 VERIZON MARYLAND, INC. 238      
410-429 0 Worthington MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-429 1 Worthington MD   876D ONVOY, LLC - MD 238   2016-04-11   
410-429 2 Worthington MD   876D ONVOY, LLC - MD 238   2016-04-11   
410-429 3 Worthington MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-31   
410-429 4 Worthington MD   9212 VERIZON MARYLAND, INC. 238      
410-429 5 Worthington MD   9212 VERIZON MARYLAND, INC. 238      
410-429 6 Worthington MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-05-05   
410-429 7 Worthington MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-429 8 Worthington MD   073H TELNYX LLC 238   2017-04-26   
410-429 9 Worthington MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-31   
410-430 A Salisbury MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
410-431 A Severna Park MD SVPKMDSPDS0  9212 VERIZON MARYLAND, INC. 238      
410-431 0 Severna Park MD   876D ONVOY, LLC - MD 238   2016-03-28   
410-431 1 Severna Park MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2015-12-06   
410-431 2 Severna Park MD   876D ONVOY, LLC - MD 238   2016-04-04   
410-431 3 Severna Park MD   876D ONVOY, LLC - MD 238   2016-04-04   
410-431 4 Severna Park MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-22   
410-431 5 Severna Park MD   9212 VERIZON MARYLAND, INC. 238      
410-431 6 Severna Park MD   9212 VERIZON MARYLAND, INC. 238      
410-431 7 Severna Park MD   9212 VERIZON MARYLAND, INC. 238      
410-431 8 Severna Park MD   9212 VERIZON MARYLAND, INC. 238      
410-431 9 Severna Park MD   9212 VERIZON MARYLAND, INC. 238      
410-432 A Severna Park MD SVPKMDSPDS0  9212 VERIZON MARYLAND, INC. 238      
410-432 0 Severna Park MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
410-432 1 Severna Park MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   

<< 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 >>

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.