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: 705

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-705 A Cambridge OH CLMFOHJU3MD  6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 0 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 1 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 2 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 3 Cambridge OH   5562 METROPCS, INC. 324      
740-705 4 Cambridge OH   5562 METROPCS, INC. 324      
740-705 5 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 6 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 7 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 8 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-705 9 Cambridge OH   6701 AERIAL COMMUNICATIONS, INC. 324      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.