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.

Churchville, MD

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-734 A CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-734 0 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-734 1 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-734 2 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-03   
410-734 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
410-734 4 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-734 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-07   
410-734 6 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-734 7 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-734 8 BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2008-09-08   
410-734 9 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-914 A BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
410-914 0 BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
410-914 1 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-06-21   
410-914 2 BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238   2020-12-26   
410-914 3 BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
410-914 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-09-22   
410-914 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-914 6 BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
410-914 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-914 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-914 9 BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-390 A BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-390 0 BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-390 1 BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-390 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-08-21   
443-390 3 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-02-01   
443-390 4 BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-390 5   876D ONVOY, LLC - MD 238   2024-03-03   
443-390 6 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-04-04   
443-390 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-390 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-12-23   
443-390 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-04   
443-412 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-412 0   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-412 1 CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2004-01-10   
443-412 2 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2008-08-24   
443-412 3 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2008-09-02   
443-412 4   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-412 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-10-14   
443-412 6 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
443-412 7 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-412 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
443-412 9 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-464 A PIVLMDPKQMD  9170 BROADVIEW NETWORKS, INC. - MD 238      
443-464 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-10-04   
443-464 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
443-464 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
443-464 3 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
443-464 4 PIVLMDPKQMD  9170 BROADVIEW NETWORKS, INC. - MD 238   2010-05-15   

1 2 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.