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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-587 A Sioux City IA SXCYIAAT7MD  353E YMAX COMMUNICATIONS CORP. - IA 630      
712-587 0 Sioux City IA SXCYIAAT7MD  353E YMAX COMMUNICATIONS CORP. - IA 630      
712-587 1 Sioux City IA   145J TERRA NOVA TELECOM INC. 630      
712-587 3 Sioux City IA SXCYIAAT7MD  353E YMAX COMMUNICATIONS CORP. - IA 630      
712-587 4 Sioux City IA SXCYIAAT7MD  353E YMAX COMMUNICATIONS CORP. - IA 630      
712-587 6 Sioux City IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-587 7 Sioux City IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-587 8 Sioux City IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-587 9 Sioux City IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.