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: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-597 A Sunfield MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-597 0 Sunfield MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2009-09-27   
517-597 1 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   
517-597 2 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2015-05-07   
517-597 3 Sunfield MI   3535 ACD TELECOM, INC. - MI 346      
517-597 4 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   
517-597 5 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   
517-597 6 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   
517-597 7 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   
517-597 8 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   
517-597 9 Sunfield MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2013-04-08   

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.