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: 616 [Rate centres in NPA 616] [Dial plan for NPA 616]

NXX: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
616-971 A Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 0 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 1 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 2 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 3 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 4 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 5 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-971 6 Dutton MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-11-15   
616-971 7 Dutton MI   046L CLEAR RATE COMMUNICATIONS, LLC 348   2009-06-04   
616-971 8 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348   2005-09-22   
616-971 9 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.