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: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-501 A Arbutus MD   829J PAETEC ITEL, LLC 238   2025-04-01   
410-501 0 Arbutus MD   5562 METROPCS, INC. 238   2013-06-14   
410-501 1 Arbutus MD   829J PAETEC ITEL, LLC 238   2005-07-30   
410-501 2 Arbutus MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-501 3 Arbutus MD   318J COMCAST IP PHONE, LLC 238   2008-02-20   
410-501 4 Arbutus MD   5562 METROPCS, INC. 238   2013-06-14   
410-501 5 Arbutus MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-12-23   
410-501 6 Arbutus MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-12-23   
410-501 7 Arbutus MD   5562 METROPCS, INC. 238   2013-06-14   
410-501 8 Arbutus MD   5562 METROPCS, INC. 238   2013-06-14   
410-501 9 Arbutus MD   5562 METROPCS, INC. 238   2013-06-14   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.