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: 746

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-746 A Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-746 0 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-746 1 Easton MD SLBRMDSC2MD  5562 METROPCS, INC. 242      
443-746 2 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-746 3 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-746 4 Easton MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242      
443-746 5 Easton MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-746 6 Easton MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-746 7 Easton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-746 8 Easton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-746 9 Easton MD SLBRMDSBXMD  073H TELNYX LLC 242      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.