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: 352

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-352 A Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-352 0 Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-352 1 Pikesville MD BLTMMDCHDMD  551G NUSO, LLC 238      
443-352 2 Pikesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-352 3 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-352 4 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
443-352 5 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
443-352 6 Pikesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-352 7 Pikesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-352 8 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-352 9 Pikesville MD BLTMMDCHDMD  551G NUSO, LLC 238      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.