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: 494

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-494 A Mason City IA MSCYIATCDS0  9631 QWEST CORPORATION 632      
641-494 0 Mason City IA MSCYIATCDS0  9631 QWEST CORPORATION 632      
641-494 1 Mason City IA MSCYIATCDS0  9631 QWEST CORPORATION 632      
641-494 2 Mason City IA MSCYIATCDS0  9631 QWEST CORPORATION 632      
641-494 3 Mason City IA MSCYIATCDS0  9631 QWEST CORPORATION 632      
641-494 4 Mason City IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-494 5 Mason City IA MSCYIATCDS0  9631 QWEST CORPORATION 632      
641-494 6 Mason City IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-494 7 Mason City IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-494 8 Mason City IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-494 9 Mason City IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.