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.

Massena, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-590 A OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-590 0 OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-590 7 MSSNIAXO3MD  6529 T-MOBILE USA, INC. 644      
712-590 9 OMAHNENWGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644      
712-779 A MSSNIAXODS0  1239 MASSENA TEL. CO. 644      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.