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: 842

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-842 A Grass Lake MI LNNGMIMNXFZ  965H FRACTEL, LLC 346      
517-842 2 Grass Lake MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-11-15   
517-842 4 Grass Lake MI LNNGMIDCDMD  516J TON80 COMMUNICATIONS, LLC 346   2022-04-21   
517-842 5 Grass Lake MI LNNGMIMNXFZ  965H FRACTEL, LLC 346   2020-04-13   
517-842 8 Grass Lake MI LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-06-17   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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