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: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-971 A Delaware OH CLMFOHJU3MD  6701 AERIAL COMMUNICATIONS, INC. 324      
740-971 0 Delaware OH   464C ONVOY, LLC - OH 324   2021-07-31   
740-971 1 Delaware OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-971 2 Delaware OH   464C ONVOY, LLC - OH 324   2020-07-10   
740-971 3 Delaware OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-971 4 Delaware OH   464C ONVOY, LLC - OH 324   2021-07-31   
740-971 5 Delaware OH   464C ONVOY, LLC - OH 324   2021-07-31   
740-971 6 Delaware OH   464C ONVOY, LLC - OH 324   2021-07-31   
740-971 7 Delaware OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-971 8 Delaware OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-971 9 Delaware OH   6701 AERIAL COMMUNICATIONS, INC. 324      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.