Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

NXX: 708

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-708 A Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358   2024-04-24   
312-708 0 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 1 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 2 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 3 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 4 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 5 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 6 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 7 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 8 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      
312-708 9 Chicago Zone 01-Calumet IL   624H ONVOY SPECTRUM, LLC 358      

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

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