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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-850 A Centerburg OH   464C ONVOY, LLC - OH 923      
740-850 0 Centerburg OH MNFDOHXAX0Y  073H TELNYX LLC 923      
740-850 1 Centerburg OH MNFDOHXAXDX  464C ONVOY, LLC - OH 923      
740-850 2 Centerburg OH MNFDOHXAXDX  464C ONVOY, LLC - OH 923      
740-850 6 Centerburg OH   464C ONVOY, LLC - OH 923      
740-850 9 Centerburg OH   515J IP HORIZON LLC 923      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.