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: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-434 A Leonardtown MD WASHDCRKDS2  8864 BROADWING COMMUNICATIONS. LLC - MD 236      
240-434 0 Leonardtown MD   912D BROADVOX-CLEC, LLC - MD 236   2012-10-06   
240-434 1 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2004-11-04   
240-434 2 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-01-02   
240-434 3 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
240-434 4 Leonardtown MD   8864 BROADWING COMMUNICATIONS. LLC - MD 236      
240-434 5 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-01-02   
240-434 6 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-07-22   
240-434 7 Leonardtown MD   8864 BROADWING COMMUNICATIONS. LLC - MD 236      
240-434 8 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-02-03   
240-434 9 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-08-07   

Last updated: Sat, 29 Jun 2019 02:32:58 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.