Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Altona, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
309-484 A VCTAILXDRS0  1054 MID CENTURY TEL. COOP., INC. 977      
309-609 A GLBGILXD5MD  593K MCC TELEPHONY LLC 977      
309-609 9 GLBGILXD5MD  593K MCC TELEPHONY LLC 977   2010-07-24   

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

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