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: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-377 A Ironton OH SPNTOH37RS1  9321 AMERITECH OHIO 324      
740-377 0 Ironton OH SPNTOH37RS1  9321 AMERITECH OHIO 324      
740-377 1 Ironton OH   547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 324   2020-05-29   
740-377 2 Ironton OH SPNTOH37RS1  9321 AMERITECH OHIO 324      
740-377 3 Ironton OH SPNTOH37RS1  9321 AMERITECH OHIO 324      
740-377 4 Ironton OH SPNTOH37RS1  9321 AMERITECH OHIO 324      
740-377 5 Ironton OH SCVIOHAGCM2  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 324   2010-06-17   
740-377 6 Ironton OH   464C ONVOY, LLC - OH 324   2021-04-13   
740-377 7 Ironton OH CLMDOH44IMD  145J TERRA NOVA TELECOM INC. 324   2020-12-31   
740-377 8 Ironton OH CLMBOH11XLZ  001F BANDWIDTH.COM CLEC LLC - OH 324   2009-01-05   
740-377 9 Ironton OH SPNTOH37RS1  9321 AMERITECH OHIO 324      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.