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: 692

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-692 A Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-692 0 Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-692 1 Jarrettsville MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-18   
410-692 2 Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-692 3 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
410-692 4 Jarrettsville MD BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2008-09-08   
410-692 5 Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-692 6 Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-692 7 Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-692 8 Jarrettsville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
410-692 9 Jarrettsville MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.