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: 710

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-710 A Sioux City IA SXCYIA791MD  939H COMMIO, LLC 630      
712-710 0 Sioux City IA SXCYIA791MD  939H COMMIO, LLC 630   2021-06-04   
712-710 1 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2021-06-05   
712-710 2 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2021-06-05   
712-710 3 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2021-06-05   
712-710 4 Sioux City IA SXCYIA794MD  145J TERRA NOVA TELECOM INC. 630   2023-12-06   
712-710 5 Sioux City IA SXCYIA78XDX  5562 METROPCS, INC. 630   2021-06-05   
712-710 6 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2022-12-24   
712-710 7 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2022-12-24   
712-710 8 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2022-12-24   
712-710 9 Sioux City IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2021-07-31   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.