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: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-526 A Leonardtown MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-526 0 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-03-11   
240-526 1 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-03-11   
240-526 2 Leonardtown MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-06-26   
240-526 3 Leonardtown MD   876D ONVOY, LLC - MD 236   2021-03-04   
240-526 4 Leonardtown MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-06-26   
240-526 5 Leonardtown MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-06-26   
240-526 6 Leonardtown MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-06-26   
240-526 7 Leonardtown MD   876D ONVOY, LLC - MD 236   2021-03-04   
240-526 8 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-03-11   
240-526 9 Leonardtown MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.