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: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 250

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-250 A Portsmouth OH CLMFOHJU3MD  6701 AERIAL COMMUNICATIONS, INC. 324      
740-250 1 Portsmouth OH HLRDOHEJGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2006-12-07   
740-250 2 Portsmouth OH DLWROHXAYMD  7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2006-05-28   
740-250 3 Portsmouth OH   6701 AERIAL COMMUNICATIONS, INC. 324   2005-06-12   
740-250 4 Portsmouth OH CLMFOHJU3MD  6701 AERIAL COMMUNICATIONS, INC. 324   2005-06-12   
740-250 5 Portsmouth OH   6701 AERIAL COMMUNICATIONS, INC. 324   2005-06-12   
740-250 6 Portsmouth OH CLMFOHJU3MD  6701 AERIAL COMMUNICATIONS, INC. 324   2007-07-08   
740-250 7 Portsmouth OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-01-01   
740-250 8 Portsmouth OH HLRDOHEJGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2007-01-16   
740-250 9 Portsmouth OH HLRDOHEJGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2007-01-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.