Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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 SPFDMAWOXLY  892D ONVOY, LLC - MA 126      
413-491 0 Chesterfield MA   073H TELNYX LLC 126   2023-09-16   
413-491 1 Chesterfield MA   892D ONVOY, LLC - MA 126   2021-05-24   
413-491 2 Chesterfield MA   892D ONVOY, LLC - MA 126   2021-06-13   
413-491 3 Chesterfield MA   624H ONVOY SPECTRUM, LLC 126   2022-02-25   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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