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: 661

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
616-661 A Sparta MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348      
616-661 0 Sparta MI BRSPMI091MD  939H COMMIO, LLC 348   2022-11-19   
616-661 1 Sparta MI   145J TERRA NOVA TELECOM INC. 348   2024-02-14   
616-661 2 Sparta MI GDRPMIBL41Z  506J TWILIO INTERNATIONAL, INC. 348   2021-07-26   
616-661 5 Sparta MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2024-03-16   
616-661 6 Sparta MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348   2021-07-25   
616-661 7 Sparta MI GDRPMIBLXDZ  5562 METROPCS, INC. 348   2022-09-05   
616-661 8 Sparta MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2024-03-16   
616-661 9 Sparta MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2024-03-16   

Last updated: Mon, 01 Apr 2024 02:18:34 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.