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.

Switch: MDFDMNAT6MD

<< 1 2 3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-282 9 South Adams IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620   2021-07-09   
641-288 A Amund IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
641-288 9 Amund IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620   2021-07-09   
641-382 A Bailey IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
641-382 9 Bailey IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620   2021-07-09   
641-900 5 Mona IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620   2021-05-31   

<< 1 2 3

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.