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: 741

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-741 A West River MD NRBHMDNE741  9212 VERIZON MARYLAND, INC. 238      
410-741 0 West River MD NRBHMDNE741  9212 VERIZON MARYLAND, INC. 238      
410-741 1 West River MD NRBHMDNE741  9212 VERIZON MARYLAND, INC. 238      
410-741 2 West River MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
410-741 3 West River MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-741 4 West River MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-741 5 West River MD NRBHMDNEDS0  9212 VERIZON MARYLAND, INC. 238      
410-741 6 West River MD NRBHMDNE741  9212 VERIZON MARYLAND, INC. 238      
410-741 7 West River MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238      
410-741 8 West River MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-741 9 West River MD NRBHMDNE741  9212 VERIZON MARYLAND, INC. 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.