Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-276 A Hudson MI ADRNMIXGOMD  543C ONVOY, LLCV - MI 340      
517-276 0 Hudson MI PLMOMIFAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-11-12   
517-276 1 Hudson MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2024-12-13   
517-276 2 Hudson MI ADRNMIXGMMD  624H ONVOY SPECTRUM, LLC 340   2021-08-27   
517-276 6 Hudson MI ADRNMIXGOMD  543C ONVOY, LLCV - MI 340   2021-08-26   
517-276 7 Hudson MI ADRNMIXGOMD  543C ONVOY, LLCV - MI 340   2022-12-10   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.