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: 941

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-941 A Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-941 0 Elkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-941 1 Elkton MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   
443-941 2 Elkton MD BLTMMDCH3MD  228C IDT AMERICA, CORP. - MD 238   2012-01-08   
443-941 3 Elkton MD BLTMMDCHX7X  073H TELNYX LLC 238   2021-03-04   
443-941 4 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-03-01   
443-941 5 Elkton MD BLTMMDCHXOY  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP DBA T-MOBILE USA 238   2016-03-29   
443-941 6 Elkton MD BLTMMDCHXOY  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP DBA T-MOBILE USA 238   2015-04-12   
443-941 7 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-11-28   
443-941 8 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-11-28   
443-941 9 Elkton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.