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.

OCN: 828B LONG LINES METRO, INC. - IA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-213 A Storm Lake IA STLKIAAY2MD  630      
712-222 A Sioux City IA SXCYIAEORL0  630      
712-238 A Sioux City IA SXCYIAEORL0  630      
712-244 A Sioux City IA SXCYIAEORL0  630      
712-500 A Le Mars IA LMRSIABR1MD  630      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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