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: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
616-221 A Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
616-221 0 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-30   
616-221 1 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-30   
616-221 2 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-28   
616-221 3 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-28   
616-221 4 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-28   
616-221 5 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-28   
616-221 6 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-09-03   
616-221 7 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-09-03   
616-221 8 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-09-03   
616-221 9 Grand Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-09-03   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.