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: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 325

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-325 A Ellicott City MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-325 0 Ellicott City MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-325 1 Ellicott City MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-325 2 Ellicott City MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2013-06-14   
443-325 3 Ellicott City MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2013-06-14   
443-325 4 Ellicott City MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2015-02-01   
443-325 5 Ellicott City MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-01-06   
443-325 6 Ellicott City MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2016-02-04   
443-325 7 Ellicott City MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-325 8 Ellicott City MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-325 9 Ellicott City MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.