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: 1109 HEARTLAND TELECO OF IA DBA PREMIER COMMUNICATIONS

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-726 0 Doon IA   630      
712-726 1 Doon IA   630      
712-726 2 Doon IA   630      
712-726 3 Doon IA   630      
712-726 4 Doon IA   630      
712-726 5 Doon IA   630      
712-726 7 Doon IA   630      
712-726 8 Doon IA   630      
712-726 9 Doon IA   630      
712-754 A Sibley IA SBLYIAACRS7  630      

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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