Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Tripoli, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-401 A CDRRIADTUMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 635      
319-401 6 CDRRIADTUMD  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 635   2023-05-19   
319-882 A PLFDIAXODS1  1115 BUTLER-BREMER MUTUAL TEL. CO. 635      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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