Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 744

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-744 A Lansing MI LNNGMIMN11Z  622J SKYE TELECOM LLC DBA SKYETEL 346      
517-744 4 Lansing MI LNNGMIMN11Z  622J SKYE TELECOM LLC DBA SKYETEL 346   2021-11-19   
517-744 5 Lansing MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-744 6 Lansing MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-744 7 Lansing MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-744 8 Lansing MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-744 9 Lansing MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2025-06-12   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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