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: 512

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
616-512 A Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348      
616-512 0 Dutton MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2012-12-29   
616-512 1 Dutton MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-19   
616-512 2 Dutton MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2012-05-26   
616-512 3 Dutton MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2016-08-21   
616-512 4 Dutton MI GDRPMIBL40Z  318J COMCAST IP PHONE, LLC 348   2016-05-23   
616-512 5 Dutton MI GDRPMIBL52Z  829J PAETEC ITEL, LLC 348   2011-06-04   
616-512 6 Dutton MI GDRPMIBL40Z  318J COMCAST IP PHONE, LLC 348   2015-04-05   
616-512 7 Dutton MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-09-17   
616-512 8 Dutton MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2018-01-04   
616-512 9 Dutton MI BRSPMI09DS0  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2018-07-14   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.