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
240-859 A Ashton (Baltimore LATA) MD   876D ONVOY, LLC - MD 238      
240-859 0 Ashton (Baltimore LATA) MD   073H TELNYX LLC 238   2017-04-26   
240-859 1 Ashton (Baltimore LATA) MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2018-11-18   
240-859 2 Ashton (Baltimore LATA) MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-06-02   
240-859 3 Ashton (Baltimore LATA) MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-05-28   
240-859 4 Ashton (Baltimore LATA) MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-06-21   
240-859 6 Ashton (Baltimore LATA) MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2016-12-09   
240-859 8 Ashton (Baltimore LATA) MD   876D ONVOY, LLC - MD 238   2016-08-10   
240-859 9 Ashton (Baltimore LATA) MD   876D ONVOY, LLC - MD 238   2016-08-10   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.