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: 729

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-729 A Westfield MA SPFDMAWOXIY  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 126      
413-729 0 Westfield MA   990E BANDWIDTH.COM CLEC, LLC - MA 126      
413-729 1 Westfield MA   892D ONVOY, LLC - MA 126   2023-08-09   
413-729 2 Westfield MA   990E BANDWIDTH.COM CLEC, LLC - MA 126      
413-729 3 Westfield MA   892D ONVOY, LLC - MA 126   2012-03-11   
413-729 4 Westfield MA   990E BANDWIDTH.COM CLEC, LLC - MA 126      
413-729 5 Westfield MA   7135 TC SYSTEMS, INC. 126   2005-07-11   
413-729 6 Westfield MA   892D ONVOY, LLC - MA 126   2021-03-06   
413-729 7 Westfield MA   508J CENTURYLINK COMMUNICATIONS, LLC 126   2015-04-21   
413-729 8 Westfield MA   892D ONVOY, LLC - MA 126   2021-03-06   
413-729 9 Westfield MA   990E BANDWIDTH.COM CLEC, LLC - MA 126      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.