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: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-301 A Tecumseh MI PLMOMIFAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
517-301 0 Tecumseh MI PLMOMIFAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
517-301 1 Tecumseh MI PLMOMIFAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
517-301 2 Tecumseh MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-301 3 Tecumseh MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
517-301 4 Tecumseh MI PTBGMIAKDS0  558A DEERFIELD FARMERS' TELEPHONE COMPANY - MI 340      
517-301 5 Tecumseh MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
517-301 6 Tecumseh MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-301 7 Tecumseh MI SFLDMIBV3MD  508J CENTURYLINK COMMUNICATIONS, LLC 340      
517-301 8 Tecumseh MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
517-301 9 Tecumseh MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.