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.

Switch: BLTMMDCH05Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-319 A Laurel (Baltimore LATA) MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-08-14   
240-712 A Laurel (Baltimore LATA) MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-01   
301-395 A Laurel (Baltimore LATA) MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-05-07   
410-707 A Columbia MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-745 A Columbia MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-812 A Columbia MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-878 A Columbia MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-979 A Columbia MD 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.