Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-664 A Rosebush MI SGNWMIACEMD  516J TON80 COMMUNICATIONS, LLC 344      
989-664 4 Rosebush MI SGNWMIACEMD  516J TON80 COMMUNICATIONS, LLC 344   2022-05-04   
989-664 6 Rosebush MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2024-08-11   

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

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