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: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
616-583 A Byron Center MI BYCTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
616-583 0 Byron Center MI BYCTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
616-583 1 Byron Center MI BYCTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
616-583 2 Byron Center MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2009-09-26   
616-583 3 Byron Center MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2012-05-26   
616-583 4 Byron Center MI BYCTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
616-583 5 Byron Center MI BYCTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      
616-583 6 Byron Center MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2018-02-27   
616-583 7 Byron Center MI GDRPMIBLX8Z  2550 123.NET, INC. 348   2015-01-12   
616-583 8 Byron Center MI GDRPMIBL40Z  318J COMCAST IP PHONE, LLC 348   2012-06-07   
616-583 9 Byron Center MI BYCTMIMNRSA  9323 MICHIGAN BELL TEL CO 348      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.