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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-457 A Tipton MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
517-457 0 Tipton MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2017-07-15   
517-457 1 Tipton MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2018-12-26   
517-457 2 Tipton MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-07-21   
517-457 4 Tipton MI ADRNMIXGMMD  624H ONVOY SPECTRUM, LLC 340   2021-06-15   
517-457 5 Tipton MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-07-12   
517-457 6 Tipton MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2015-11-12   
517-457 7 Tipton MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-06-18   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.