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: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-657 A Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 0 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 1 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 2 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 3 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 4 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 5 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 6 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 7 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 8 Cheshire Center OH CHSDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-657 9 Cheshire Center OH CLMBOHLT7MD  073H TELNYX LLC 324   2021-01-21   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.