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: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-497 A Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-497 0 Salisbury MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242      
443-497 1 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-497 2 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-497 3 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-497 4 Salisbury MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242      
443-497 5 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2007-10-19   
443-497 6 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242      
443-497 7 Salisbury MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
443-497 8 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2007-03-13   
443-497 9 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2007-03-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.