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: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 584

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-584 A Spencer IA SXCYIADTGMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 630      
712-584 0 Spencer IA SXCYIADTX0X  495J STRATUS NETWORKS 630      
712-584 2 Spencer IA   904D PREMIER COMMUNICATIONS, INC. - IA 630      
712-584 3 Spencer IA SXCYIADTGMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 630      
712-584 4 Spencer IA SXCYIA794MD  145J TERRA NOVA TELECOM INC. 630      
712-584 5 Spencer IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-584 6 Spencer IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-584 7 Spencer IA SXCYIADTKMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 630      
712-584 8 Spencer IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-584 9 Spencer IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.