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: 536

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-536 A Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 0 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 1 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 2 Arbutus MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
410-536 3 Arbutus MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-02-14   
410-536 4 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 5 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 6 Arbutus MD   145J TERRA NOVA TELECOM INC. 238   2024-02-14   
410-536 7 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 9 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.