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
410-870 2 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-19   
410-870 3 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-03-27   
410-870 4 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-09-18   
410-870 5 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-14   
410-870 6 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-03-27   
410-870 7 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-04-29   
410-870 8 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-06-11   
410-870 9 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-10-12   
410-871 A Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-871 0 Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-871 1 Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-871 2 Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-871 3 Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-871 4 Westminster MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-17   
410-871 5 Westminster MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-12-09   
410-871 6 Westminster MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-871 7 Westminster MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-871 8 Westminster MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-871 9 Westminster MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-872 A Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
410-873 A Nanticoke MD NNTCMDNTRS1  9212 VERIZON MARYLAND, INC. 242      
410-873 0 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-873 1 Nanticoke MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
410-873 2 Nanticoke MD NNTCMDNTRS1  9212 VERIZON MARYLAND, INC. 242      
410-873 3 Nanticoke MD NNTCMDNTRS1  9212 VERIZON MARYLAND, INC. 242      
410-873 4 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 5 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 6 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 7 Nanticoke MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-873 8 Nanticoke MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-873 9 Nanticoke MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
410-874 A Odenton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-874 0 Odenton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-874 1 Odenton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-874 2 Odenton MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238   2006-06-30   
410-874 3 Odenton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-09-20   
410-874 4 Odenton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-874 5 Odenton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-874 6 Odenton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2015-08-28   
410-874 7 Odenton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-09-12   
410-874 8 Odenton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-09-12   
410-874 9 Odenton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-875 A Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 0 Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 1 Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 2 Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 3 Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 4 Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 5 Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 6 Sykesville MD WMNSMDWMDS0  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: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.