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.

Prince Frederick, MD

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-414 A PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 0 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 1 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 2 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 3 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 4 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 5 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 6 BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238      
410-414 7 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 8 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-414 9 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-474 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-495 A MUTLMDMTRS0  9212 VERIZON MARYLAND, INC. 238      
410-535 A PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-586 A MUTLMDMTRS0  9212 VERIZON MARYLAND, INC. 238      
410-610 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-295 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-295 0   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-295 1 BLTMMDCHW29  2589 US LEC OF MARYLAND, INC. 238      
443-295 2 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-295 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-295 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-295 5 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-295 6 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-295 7 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-295 8 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-295 9 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-432 A BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-432 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-432 1 BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-432 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-432 3 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-432 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-432 5 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-432 6   515J IP HORIZON LLC 238      
443-432 7 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238      
443-432 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-432 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-486 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-486 0   145J TERRA NOVA TELECOM INC. 238      
443-486 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-486 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-486 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-486 4 PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
443-486 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-486 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-486 7 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-486 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-486 9 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-532 A BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 0 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 1 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 2 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-532 3 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
443-532 4 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 5 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 6 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 7 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 8 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-532 9   515J IP HORIZON LLC 238      
443-624 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 0 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 1 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 2 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 3 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 4 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 5 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 6 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 7 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 8 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-624 9 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 0 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 1 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-684 3 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 4 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 5 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-684 6 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-684 8 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-684 9 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 0 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-771 2 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 3 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 4 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 5 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 6 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 7 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-771 8 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-771 9 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-968 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-968 2 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-968 3 BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-968 4 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      

1 2 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.