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: 245

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-245 A Rio Grande OH RIGROH24RS1  9321 AMERITECH OHIO 324      
740-245 0 Rio Grande OH   9321 AMERITECH OHIO 324      
740-245 1 Rio Grande OH   547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 324   2013-10-08   
740-245 2 Rio Grande OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2015-05-15   
740-245 3 Rio Grande OH   464C ONVOY, LLC - OH 324   2015-08-01   
740-245 4 Rio Grande OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2015-11-21   
740-245 5 Rio Grande OH   9321 AMERITECH OHIO 324      
740-245 6 Rio Grande OH   464C ONVOY, LLC - OH 324   2015-07-04   
740-245 7 Rio Grande OH   9321 AMERITECH OHIO 324      
740-245 8 Rio Grande OH   9321 AMERITECH OHIO 324      
740-245 9 Rio Grande OH   9321 AMERITECH OHIO 324      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.