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: 873

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-873 A Nanticoke MD NNTCMDNTRS1  9212 VERIZON MARYLAND, INC. 242      
410-873 0 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-873 1 Nanticoke MD   876D ONVOY, LLC - MD 242   2019-03-04   
410-873 2 Nanticoke MD   9212 VERIZON MARYLAND, INC. 242      
410-873 3 Nanticoke MD   9212 VERIZON MARYLAND, INC. 242      
410-873 4 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 5 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 6 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 7 Nanticoke MD   876D ONVOY, LLC - MD 242   2017-04-14   
410-873 8 Nanticoke MD   073H TELNYX LLC 242   2017-09-13   
410-873 9 Nanticoke MD   876D ONVOY, LLC - MD 242   2019-03-04   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.