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: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-821 A Grinnell IA   5562 METROPCS, INC. 632      
641-821 0 Grinnell IA DESMIA72HMD  5562 METROPCS, INC. 632      
641-821 2 Grinnell IA GRNLIAXCQMD  221F ONVOY, LLC - IA 632   2023-08-11   
641-821 9 Grinnell IA   5562 METROPCS, INC. 632      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.