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: 413 [Rate centres in NPA 413] [Dial plan for NPA 413]

NXX: 491

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-491 A Chesterfield MA   566J RADIANTIQ LLC 126   2021-05-23   
413-491 1 Chesterfield MA   892D ONVOY, LLC - MA 126   2021-05-24   
413-491 4 Chesterfield MA   566J RADIANTIQ LLC 126   2021-05-23   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.